From b0ee255acae95009114ebbf939711db20dd28733 Mon Sep 17 00:00:00 2001
From: Daniel Bayerlein <danielbayerlein@users.noreply.github.com>
Date: Fri, 7 Feb 2025 15:30:09 +0100
Subject: [PATCH 1/3] chore: update dependencies

---
 .github/dependabot.yml        |  11 +-
 .github/workflows/ci.yml      |  13 +-
 Pipfile                       |  22 +-
 Pipfile.lock                  | 432 +++++++++++++++++++---------------
 README.md                     |   2 +-
 bin/sepicker                  |   2 +-
 sepicker/config.py            |   6 +-
 sepicker/datastore/mysql.py   |   2 +-
 sepicker/interface/can_bus.py |   6 +-
 tests/test_elster_frame.py    |  11 +-
 10 files changed, 285 insertions(+), 222 deletions(-)

diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index eff7b5f..5e5c622 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -1,8 +1,7 @@
 version: 2
 updates:
-- package-ecosystem: pip
-  directory: "/"
-  schedule:
-    interval: daily
-    time: "04:00"
-  open-pull-requests-limit: 10
+  - package-ecosystem: pip
+    directory: "/"
+    schedule:
+      interval: daily
+    open-pull-requests-limit: 10
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4c09c8c..58b11c1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,15 +10,16 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - name: Set up Python 3.11
-        uses: actions/setup-python@v1
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
         with:
-          python-version: 3.11
+          python-version: 3.13
+          cache: "pipenv"
+      - name: Install pipenv
+        run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
       - name: Install dependencies
         run: |
-          python -m pip install --upgrade pip
-          pip install pipenv
           pipenv install --dev
       - name: Lint
         run: pipenv run lint
diff --git a/Pipfile b/Pipfile
index 5538777..5bdc14d 100644
--- a/Pipfile
+++ b/Pipfile
@@ -4,21 +4,21 @@ url = "https://pypi.org/simple"
 verify_ssl = true
 
 [dev-packages]
-flake8 = "*"
-flake8-bandit = "*"
-flake8-bugbear = "*"
-pep8-naming = "*"
-pytest = "*"
-pytest-cov = "*"
+flake8 = "==7.1.1"
+flake8-bandit = "==4.1.1"
+flake8-bugbear = "==24.12.12"
+pep8-naming = "==0.14.1"
+pytest = "==8.3.4"
+pytest-cov = "==6.0.0"
 
 [packages]
-python-can = "*"
-pyyaml = "*"
-mysql-connector = "*"
-python-dotenv = "*"
+python-can = "==4.5.0"
+pyyaml = "==6.0.2"
+mysql-connector-python = "==9.2.0"
+python-dotenv = "==1.0.1"
 
 [requires]
-python_version = "3.11"
+python_version = "3.13"
 
 [scripts]
 lint = "flake8"
diff --git a/Pipfile.lock b/Pipfile.lock
index 617b0ef..68fe759 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,11 +1,11 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "ed53f2ad2024fa01048ab03fc2e3faa5c39e8434dd653ef629c85981832fcf07"
+            "sha256": "c8ebf026a145fa9311e1d9d36b1f6b34ba031c5c37e99738e984e0de9e3a1ba6"
         },
         "pipfile-spec": 6,
         "requires": {
-            "python_version": "3.11"
+            "python_version": "3.13"
         },
         "sources": [
             {
@@ -18,65 +18,73 @@
     "default": {
         "msgpack": {
             "hashes": [
-                "sha256:04ad6069c86e531682f9e1e71b71c1c3937d6014a7c3e9edd2aa81ad58842862",
-                "sha256:0bfdd914e55e0d2c9e1526de210f6fe8ffe9705f2b1dfcc4aecc92a4cb4b533d",
-                "sha256:1dc93e8e4653bdb5910aed79f11e165c85732067614f180f70534f056da97db3",
-                "sha256:1e2d69948e4132813b8d1131f29f9101bc2c915f26089a6d632001a5c1349672",
-                "sha256:235a31ec7db685f5c82233bddf9858748b89b8119bf4538d514536c485c15fe0",
-                "sha256:27dcd6f46a21c18fa5e5deed92a43d4554e3df8d8ca5a47bf0615d6a5f39dbc9",
-                "sha256:28efb066cde83c479dfe5a48141a53bc7e5f13f785b92ddde336c716663039ee",
-                "sha256:3476fae43db72bd11f29a5147ae2f3cb22e2f1a91d575ef130d2bf49afd21c46",
-                "sha256:36e17c4592231a7dbd2ed09027823ab295d2791b3b1efb2aee874b10548b7524",
-                "sha256:384d779f0d6f1b110eae74cb0659d9aa6ff35aaf547b3955abf2ab4c901c4819",
-                "sha256:38949d30b11ae5f95c3c91917ee7a6b239f5ec276f271f28638dec9156f82cfc",
-                "sha256:3967e4ad1aa9da62fd53e346ed17d7b2e922cba5ab93bdd46febcac39be636fc",
-                "sha256:3e7bf4442b310ff154b7bb9d81eb2c016b7d597e364f97d72b1acc3817a0fdc1",
-                "sha256:3f0c8c6dfa6605ab8ff0611995ee30d4f9fcff89966cf562733b4008a3d60d82",
-                "sha256:484ae3240666ad34cfa31eea7b8c6cd2f1fdaae21d73ce2974211df099a95d81",
-                "sha256:4a7b4f35de6a304b5533c238bee86b670b75b03d31b7797929caa7a624b5dda6",
-                "sha256:4cb14ce54d9b857be9591ac364cb08dc2d6a5c4318c1182cb1d02274029d590d",
-                "sha256:4e71bc4416de195d6e9b4ee93ad3f2f6b2ce11d042b4d7a7ee00bbe0358bd0c2",
-                "sha256:52700dc63a4676669b341ba33520f4d6e43d3ca58d422e22ba66d1736b0a6e4c",
-                "sha256:572efc93db7a4d27e404501975ca6d2d9775705c2d922390d878fcf768d92c87",
-                "sha256:576eb384292b139821c41995523654ad82d1916da6a60cff129c715a6223ea84",
-                "sha256:5b0bf0effb196ed76b7ad883848143427a73c355ae8e569fa538365064188b8e",
-                "sha256:5b6ccc0c85916998d788b295765ea0e9cb9aac7e4a8ed71d12e7d8ac31c23c95",
-                "sha256:5ed82f5a7af3697b1c4786053736f24a0efd0a1b8a130d4c7bfee4b9ded0f08f",
-                "sha256:6d4c80667de2e36970ebf74f42d1088cc9ee7ef5f4e8c35eee1b40eafd33ca5b",
-                "sha256:730076207cb816138cf1af7f7237b208340a2c5e749707457d70705715c93b93",
-                "sha256:7687e22a31e976a0e7fc99c2f4d11ca45eff652a81eb8c8085e9609298916dcf",
-                "sha256:822ea70dc4018c7e6223f13affd1c5c30c0f5c12ac1f96cd8e9949acddb48a61",
-                "sha256:84b0daf226913133f899ea9b30618722d45feffa67e4fe867b0b5ae83a34060c",
-                "sha256:85765fdf4b27eb5086f05ac0491090fc76f4f2b28e09d9350c31aac25a5aaff8",
-                "sha256:8dd178c4c80706546702c59529ffc005681bd6dc2ea234c450661b205445a34d",
-                "sha256:8f5b234f567cf76ee489502ceb7165c2a5cecec081db2b37e35332b537f8157c",
-                "sha256:98bbd754a422a0b123c66a4c341de0474cad4a5c10c164ceed6ea090f3563db4",
-                "sha256:993584fc821c58d5993521bfdcd31a4adf025c7d745bbd4d12ccfecf695af5ba",
-                "sha256:a40821a89dc373d6427e2b44b572efc36a2778d3f543299e2f24eb1a5de65415",
-                "sha256:b291f0ee7961a597cbbcc77709374087fa2a9afe7bdb6a40dbbd9b127e79afee",
-                "sha256:b573a43ef7c368ba4ea06050a957c2a7550f729c31f11dd616d2ac4aba99888d",
-                "sha256:b610ff0f24e9f11c9ae653c67ff8cc03c075131401b3e5ef4b82570d1728f8a9",
-                "sha256:bdf38ba2d393c7911ae989c3bbba510ebbcdf4ecbdbfec36272abe350c454075",
-                "sha256:bfef2bb6ef068827bbd021017a107194956918ab43ce4d6dc945ffa13efbc25f",
-                "sha256:cab3db8bab4b7e635c1c97270d7a4b2a90c070b33cbc00c99ef3f9be03d3e1f7",
-                "sha256:cb70766519500281815dfd7a87d3a178acf7ce95390544b8c90587d76b227681",
-                "sha256:cca1b62fe70d761a282496b96a5e51c44c213e410a964bdffe0928e611368329",
-                "sha256:ccf9a39706b604d884d2cb1e27fe973bc55f2890c52f38df742bc1d79ab9f5e1",
-                "sha256:dc43f1ec66eb8440567186ae2f8c447d91e0372d793dfe8c222aec857b81a8cf",
-                "sha256:dd632777ff3beaaf629f1ab4396caf7ba0bdd075d948a69460d13d44357aca4c",
-                "sha256:e45ae4927759289c30ccba8d9fdce62bb414977ba158286b5ddaf8df2cddb5c5",
-                "sha256:e50ebce52f41370707f1e21a59514e3375e3edd6e1832f5e5235237db933c98b",
-                "sha256:ebbbba226f0a108a7366bf4b59bf0f30a12fd5e75100c630267d94d7f0ad20e5",
-                "sha256:ec79ff6159dffcc30853b2ad612ed572af86c92b5168aa3fc01a67b0fa40665e",
-                "sha256:f0936e08e0003f66bfd97e74ee530427707297b0d0361247e9b4f59ab78ddc8b",
-                "sha256:f26a07a6e877c76a88e3cecac8531908d980d3d5067ff69213653649ec0f60ad",
-                "sha256:f64e376cd20d3f030190e8c32e1c64582eba56ac6dc7d5b0b49a9d44021b52fd",
-                "sha256:f6ffbc252eb0d229aeb2f9ad051200668fc3a9aaa8994e49f0cb2ffe2b7867e7",
-                "sha256:f9a7c509542db4eceed3dcf21ee5267ab565a83555c9b88a8109dcecc4709002",
-                "sha256:ff1d0899f104f3921d94579a5638847f783c9b04f2d5f229392ca77fba5b82fc"
-            ],
-            "markers": "platform_system != 'Windows'",
-            "version": "==1.0.7"
+                "sha256:06f5fd2f6bb2a7914922d935d3b8bb4a7fff3a9a91cfce6d06c13bc42bec975b",
+                "sha256:071603e2f0771c45ad9bc65719291c568d4edf120b44eb36324dcb02a13bfddf",
+                "sha256:0907e1a7119b337971a689153665764adc34e89175f9a34793307d9def08e6ca",
+                "sha256:0f92a83b84e7c0749e3f12821949d79485971f087604178026085f60ce109330",
+                "sha256:115a7af8ee9e8cddc10f87636767857e7e3717b7a2e97379dc2054712693e90f",
+                "sha256:13599f8829cfbe0158f6456374e9eea9f44eee08076291771d8ae93eda56607f",
+                "sha256:17fb65dd0bec285907f68b15734a993ad3fc94332b5bb21b0435846228de1f39",
+                "sha256:2137773500afa5494a61b1208619e3871f75f27b03bcfca7b3a7023284140247",
+                "sha256:3180065ec2abbe13a4ad37688b61b99d7f9e012a535b930e0e683ad6bc30155b",
+                "sha256:398b713459fea610861c8a7b62a6fec1882759f308ae0795b5413ff6a160cf3c",
+                "sha256:3d364a55082fb2a7416f6c63ae383fbd903adb5a6cf78c5b96cc6316dc1cedc7",
+                "sha256:3df7e6b05571b3814361e8464f9304c42d2196808e0119f55d0d3e62cd5ea044",
+                "sha256:41c991beebf175faf352fb940bf2af9ad1fb77fd25f38d9142053914947cdbf6",
+                "sha256:42f754515e0f683f9c79210a5d1cad631ec3d06cea5172214d2176a42e67e19b",
+                "sha256:452aff037287acb1d70a804ffd022b21fa2bb7c46bee884dbc864cc9024128a0",
+                "sha256:4676e5be1b472909b2ee6356ff425ebedf5142427842aa06b4dfd5117d1ca8a2",
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+                "sha256:4b51405e36e075193bc051315dbf29168d6141ae2500ba8cd80a522964e31434",
+                "sha256:4d1b7ff2d6146e16e8bd665ac726a89c74163ef8cd39fa8c1087d4e52d3a2325",
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+                "sha256:646afc8102935a388ffc3914b336d22d1c2d6209c773f3eb5dd4d6d3b6f8c1cb",
+                "sha256:64fc9068d701233effd61b19efb1485587560b66fe57b3e50d29c5d78e7fef68",
+                "sha256:65553c9b6da8166e819a6aa90ad15288599b340f91d18f60b2061f402b9a4915",
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+                "sha256:74bed8f63f8f14d75eec75cf3d04ad581da6b914001b474a5d3cd3372c8cc27d",
+                "sha256:79ec007767b9b56860e0372085f8504db5d06bd6a327a335449508bbee9648fa",
+                "sha256:7a946a8992941fea80ed4beae6bff74ffd7ee129a90b4dd5cf9c476a30e9708d",
+                "sha256:7ad442d527a7e358a469faf43fda45aaf4ac3249c8310a82f0ccff9164e5dccd",
+                "sha256:7c9a35ce2c2573bada929e0b7b3576de647b0defbd25f5139dcdaba0ae35a4cc",
+                "sha256:7e7b853bbc44fb03fbdba34feb4bd414322180135e2cb5164f20ce1c9795ee48",
+                "sha256:879a7b7b0ad82481c52d3c7eb99bf6f0645dbdec5134a4bddbd16f3506947feb",
+                "sha256:8a706d1e74dd3dea05cb54580d9bd8b2880e9264856ce5068027eed09680aa74",
+                "sha256:8a84efb768fb968381e525eeeb3d92857e4985aacc39f3c47ffd00eb4509315b",
+                "sha256:8cf9e8c3a2153934a23ac160cc4cba0ec035f6867c8013cc6077a79823370346",
+                "sha256:8da4bf6d54ceed70e8861f833f83ce0814a2b72102e890cbdfe4b34764cdd66e",
+                "sha256:8e59bca908d9ca0de3dc8684f21ebf9a690fe47b6be93236eb40b99af28b6ea6",
+                "sha256:914571a2a5b4e7606997e169f64ce53a8b1e06f2cf2c3a7273aa106236d43dd5",
+                "sha256:a51abd48c6d8ac89e0cfd4fe177c61481aca2d5e7ba42044fd218cfd8ea9899f",
+                "sha256:a52a1f3a5af7ba1c9ace055b659189f6c669cf3657095b50f9602af3a3ba0fe5",
+                "sha256:ad33e8400e4ec17ba782f7b9cf868977d867ed784a1f5f2ab46e7ba53b6e1e1b",
+                "sha256:b4c01941fd2ff87c2a934ee6055bda4ed353a7846b8d4f341c428109e9fcde8c",
+                "sha256:bce7d9e614a04d0883af0b3d4d501171fbfca038f12c77fa838d9f198147a23f",
+                "sha256:c40ffa9a15d74e05ba1fe2681ea33b9caffd886675412612d93ab17b58ea2fec",
+                "sha256:c5a91481a3cc573ac8c0d9aace09345d989dc4a0202b7fcb312c88c26d4e71a8",
+                "sha256:c921af52214dcbb75e6bdf6a661b23c3e6417f00c603dd2070bccb5c3ef499f5",
+                "sha256:d46cf9e3705ea9485687aa4001a76e44748b609d260af21c4ceea7f2212a501d",
+                "sha256:d8ce0b22b890be5d252de90d0e0d119f363012027cf256185fc3d474c44b1b9e",
+                "sha256:dd432ccc2c72b914e4cb77afce64aab761c1137cc698be3984eee260bcb2896e",
+                "sha256:e0856a2b7e8dcb874be44fea031d22e5b3a19121be92a1e098f46068a11b0870",
+                "sha256:e1f3c3d21f7cf67bcf2da8e494d30a75e4cf60041d98b3f79875afb5b96f3a3f",
+                "sha256:f1ba6136e650898082d9d5a5217d5906d1e138024f836ff48691784bbe1adf96",
+                "sha256:f3e9b4936df53b970513eac1758f3882c88658a220b58dcc1e39606dccaaf01c",
+                "sha256:f80bc7d47f76089633763f952e67f8214cb7b3ee6bfa489b3cb6a84cfac114cd",
+                "sha256:fd2906780f25c8ed5d7b323379f6138524ba793428db5d0e9d226d3fa6aa1788"
+            ],
+            "markers": "python_version >= '3.8'",
+            "version": "==1.1.0"
         },
         "mysql-connector": {
             "hashes": [
@@ -85,22 +93,55 @@
             "index": "pypi",
             "version": "==2.2.9"
         },
+        "mysql-connector-python": {
+            "hashes": [
+                "sha256:03fe54ca19c2dffa8f04ca0601a1217b126ff8306c76a9b2b4e555f8fbbd2178",
+                "sha256:0aee4e3a053672ded2134eda6fff3bc64796df88c9a9e5cab130b576830e14a8",
+                "sha256:2238ba121a30dd3a23d33ce3437642e38a1d4b86afaf7a487cdb0d7727db2010",
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+                "sha256:2a96bed643e901e91c05f421a37844939f5e2f65cc54a406ec5d95e704bda068",
+                "sha256:2c358b5732666043683445e88405d58232d5bb0977d24ec55e02a315b33fecbc",
+                "sha256:4142a0a4e997210558136ad2b623188c102996eda2d951a3933d6338b210f15e",
+                "sha256:417c538dfd64e6d415280067f4d7ce3f901ce85c548e609247a794d205769276",
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+                "sha256:65808b0a9998150416ee0b5781fdff456faea247e24d505f606aea2acaf21374",
+                "sha256:7c25dc2cb4fca82242d71a0bda2087bdfa3638e0c8175a747a6e765242763b4a",
+                "sha256:86c3217849857113912e8fc628e13182f00955ed1257cb7bfdc3d5ac3c5ff371",
+                "sha256:877552ff04800be4a53604bfee95b4078d10fcc072d54b9ea8dcd159c692742c",
+                "sha256:8a6cfb611bdfea41c67c5305e8fc0e30fdacd258c489dc619f566213cce8bba9",
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+            "markers": "python_version >= '3.9'",
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-            "version": "==23.2"
+            "markers": "python_version >= '3.8'",
+            "version": "==24.2"
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         "python-can": {
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@@ -113,49 +154,63 @@
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@@ -168,87 +223,96 @@
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-                "sha256:bc57efac2da352a51cc4658878a68d2b1b67dbe9d33c36cb826ca449d80a8465",
-                "sha256:bf5703fdeb350e36885f2875d853ce13172ae281c56e509f4e6eca049bdfb136",
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-                "sha256:c5cd603b575ebceca7da5a3a251e69561bec509e0b46e4993e1cac402b7247b8",
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-                "sha256:d462f28826f4657968ae51d2181a074dfe03c200d6131690b7d65d55b0f360f8",
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-                "sha256:db2e408d983b0e61e238cf579c09ef7020560441906ca990fe8412153e3b291f",
-                "sha256:db98ad84a55eb09b3c32a96c576476777e87c520a34e2519d3e59c44710c002c",
-                "sha256:dbed418ba5c3dce92619656802cc5355cb679e58d0d89b50f116e4a9d5a9603e",
-                "sha256:dcdba5c86e368442528f7060039eda390cc4091bfd1dca41e8046af7c910dda8",
-                "sha256:decbfa2f618fa8ed81c95ee18a387ff973143c656ef800c9f24fb7e9c16054e2",
-                "sha256:e4fdb9275308292e880dcbeb12546df7f3e0f96c6b41197e0cf37d2826359020",
-                "sha256:eb1b046be06b0fce7249f1d025cd359b4b80fc1c3e24ad9eca33e0dcdb2e4a35",
-                "sha256:eb6e651000a19c96f452c85132811d25e9264d836951022d6e81df2fff38337d",
-                "sha256:ed867c42c268f876097248e05b6117a65bcd1e63b779e916fe2e33cd6fd0d3c3",
-                "sha256:edfad1d29c73f9b863ebe7082ae9321374ccb10879eeabc84ba3b69f2579d537",
-                "sha256:f2058f813d4f2b5e3a9eb2eb3faf8f1d99b81c3e51aeda4b168406443e8ba809",
-                "sha256:f6b2d0c6703c988d334f297aa5df18c45e97b0af3679bb75059e0e0bd8b1069d",
-                "sha256:f8212564d49c50eb4565e502814f694e240c55551a5f1bc841d4fcaabb0a9b8a",
-                "sha256:ffa565331890b90056c01db69c0fe634a776f8019c143a5ae265f9c6bc4bd6d4"
+                "sha256:08e7ce672e35efa54c5024936e559469436f8b8096253404faeb54d2a878416f",
+                "sha256:0a6e821770cf99cc586d33833b2ff32faebdbe886bd6322395606cf55153246c",
+                "sha256:0b929ac182f5ace000d459c59c2c9c33047e20e935f8e39371fa6e3b85d56f4a",
+                "sha256:129a150f5c445165ff941fc02ee27df65940fcb8a22a61828b1853c98763a64b",
+                "sha256:13e6afb7fe71fe7485a4550a8844cc9ffbe263c0f1a1eea569bc7091d4898555",
+                "sha256:1473400e5b2733e58b396a04eb7f35f541e1fb976d0c0724d0223dd607e0f74c",
+                "sha256:18983c537e04d11cf027fbb60a1e8dfd5190e2b60cc27bc0808e653e7b218d1b",
+                "sha256:1a7ed2d9d039bd41e889f6fb9364554052ca21ce823580f6a07c4ec245c1f5d6",
+                "sha256:1e1fe0e6ab7775fd842bc39e86f6dcfc4507ab0ffe206093e76d61cde37225c8",
+                "sha256:1fb5699e4464afe5c7e65fa51d4f99e0b2eadcc176e4aa33600a3df7801d6662",
+                "sha256:2696993ee1eebd20b8e4ee4356483c4cb696066ddc24bd70bcbb80fa56ff9061",
+                "sha256:35621ae4c00e056adb0009f8e86e28eb4a41a4bfa8f9bfa9fca7d343fe94f998",
+                "sha256:36ccae62f64235cf8ddb682073a60519426fdd4725524ae38874adf72b5f2aeb",
+                "sha256:3cedbfa9c940fdad3e6e941db7138e26ce8aad38ab5fe9dcfadfed9db7a54e62",
+                "sha256:3d57c572081fed831ad2d26fd430d565b76aa277ed1d30ff4d40670b1c0dd984",
+                "sha256:3fc7cb4c1c744f8c05cd5f9438a3caa6ab94ce8344e952d7c45a8ed59dd88392",
+                "sha256:4011d137b9955791f9084749cba9a367c68d50ab8d11d64c50ba1688c9b457f2",
+                "sha256:40d615e4fe22f4ad3528448c193b218e077656ca9ccb22ce2cb20db730f8d306",
+                "sha256:410a92fefd2e0e10d26210e1dfb4a876ddaf8439ef60d6434f21ef8d87efc5b7",
+                "sha256:41388e9d4d1522446fe79d3213196bd9e3b301a336965b9e27ca2788ebd122f3",
+                "sha256:468090021f391fe0056ad3e807e3d9034e0fd01adcd3bdfba977b6fdf4213ea9",
+                "sha256:49703ce2ddc220df165bd2962f8e03b84c89fee2d65e1c24a7defff6f988f4d6",
+                "sha256:4a721d3c943dae44f8e243b380cb645a709ba5bd35d3ad27bc2ed947e9c68192",
+                "sha256:4afd5814270fdf6380616b321fd31435a462019d834f83c8611a0ce7484c7317",
+                "sha256:4c82b8785d98cdd9fed4cac84d765d234ed3251bd6afe34cb7ac523cb93e8b4f",
+                "sha256:4db983e7bca53819efdbd64590ee96c9213894272c776966ca6306b73e4affda",
+                "sha256:582530701bff1dec6779efa00c516496968edd851fba224fbd86e46cc6b73563",
+                "sha256:58455b79ec2661c3600e65c0a716955adc2410f7383755d537584b0de41b1d8a",
+                "sha256:58705da316756681ad3c9c73fd15499aa4d8c69f9fd38dc8a35e06c12468582f",
+                "sha256:5bb1d0dbf99411f3d871deb6faa9aabb9d4e744d67dcaaa05399af89d847a91d",
+                "sha256:5c803c401ea1c1c18de70a06a6f79fcc9c5acfc79133e9869e730ad7f8ad8ef9",
+                "sha256:5cbabee4f083b6b4cd282f5b817a867cf0b1028c54d445b7ec7cfe6505057cf8",
+                "sha256:612dff5db80beef9e649c6d803a8d50c409082f1fedc9dbcdfde2983b2025b82",
+                "sha256:62c2caa1585c82b3f7a7ab56afef7b3602021d6da34fbc1cf234ff139fed3cd9",
+                "sha256:69606d7bb691b50a4240ce6b22ebb319c1cfb164e5f6569835058196e0f3a845",
+                "sha256:6d9187b01bebc3875bac9b087948a2bccefe464a7d8f627cf6e48b1bbae30f82",
+                "sha256:6ed6ffac43aecfe6d86ec5b74b06a5be33d5bb9243d055141e8cabb12aa08125",
+                "sha256:703919b1633412ab54bcf920ab388735832fdcb9f9a00ae49387f0fe67dad504",
+                "sha256:766d8bbefcb9e00c3ac3b000d9acc51f1b399513f44d77dfe0eb026ad7c9a19b",
+                "sha256:80dd7db6a7cb57ffbc279c4394246414ec99537ae81ffd702443335a61dbf3a7",
+                "sha256:8112e52c5822fc4253f3901b676c55ddf288614dc7011634e2719718eaa187dc",
+                "sha256:8c8b293cd65ad716d13d8dd3624e42e5a19cc2a2f1acc74b30c2c13f15cb61a6",
+                "sha256:8fdbdb757d5390f7c675e558fd3186d590973244fab0c5fe63d373ade3e99d40",
+                "sha256:91bd7d1773e64019f9288b7a5101f3ae50d3d8e6b1de7edee9c2ccc1d32f0c0a",
+                "sha256:95c658736ec15602da0ed73f312d410117723914a5c91a14ee4cdd72f1d790b3",
+                "sha256:99039fa9e6306880572915728d7f6c24a86ec57b0a83f6b2491e1d8ab0235b9a",
+                "sha256:9a2bce789a5ea90e51a02dfcc39e31b7f1e662bc3317979aa7e5538e3a034f72",
+                "sha256:9a7d15bbd2bc99e92e39f49a04653062ee6085c0e18b3b7512a4f2fe91f2d681",
+                "sha256:9abc77a4ce4c6f2a3168ff34b1da9b0f311a8f1cfd694ec96b0603dff1c79438",
+                "sha256:9e8659775f1adf02eb1e6f109751268e493c73716ca5761f8acb695e52a756ae",
+                "sha256:9fee687dce376205d9a494e9c121e27183b2a3df18037f89d69bd7b35bcf59e2",
+                "sha256:a5aaeff38654462bc4b09023918b7f21790efb807f54c000a39d41d69cf552cb",
+                "sha256:a604bf7a053f8362d27eb9fefd2097f82600b856d5abe996d623babd067b1ab5",
+                "sha256:abbb9e76177c35d4e8568e58650aa6926040d6a9f6f03435b7a522bf1c487f9a",
+                "sha256:acc130bc0375999da18e3d19e5a86403667ac0c4042a094fefb7eec8ebac7cf3",
+                "sha256:b18f2d1533a71f069c7f82d524a52599053d4c7166e9dd374ae2136b7f40f7c8",
+                "sha256:b4e42a40a5e164cbfdb7b386c966a588b1047558a990981ace551ed7e12ca9c2",
+                "sha256:b5e251054542ae57ac7f3fba5d10bfff615b6c2fb09abeb37d2f1463f841ae22",
+                "sha256:b60fb58b90c6d63779cb0c0c54eeb38941bae3ecf7a73c764c52c88c2dcb9d72",
+                "sha256:b870b5df5b71d8c3359d21be8f0d6c485fa0ebdb6477dda51a1ea54a9b558061",
+                "sha256:ba0f0eb61ef00ea10e00eb53a9129501f52385c44853dbd6c4ad3f403603083f",
+                "sha256:bb87745b2e6dc56361bfde481d5a378dc314b252a98d7dd19a651a3fa58f24a9",
+                "sha256:bb90fb8bda722a1b9d48ac1e6c38f923ea757b3baf8ebd0c82e09c5c1a0e7a04",
+                "sha256:bc570b5f14a79734437cb7b0500376b6b791153314986074486e0b0fa8d71d98",
+                "sha256:c86563182421896d73858e08e1db93afdd2b947a70064b813d515d66549e15f9",
+                "sha256:c958bcfd59bacc2d0249dcfe575e71da54f9dcf4a8bdf89c4cb9a68a1170d73f",
+                "sha256:d18a4865f46b8579d44e4fe1e2bcbc6472ad83d98e22a26c963d46e4c125ef0b",
+                "sha256:d5e2439eecc762cd85e7bd37161d4714aa03a33c5ba884e26c81559817ca0925",
+                "sha256:e3890b508a23299083e065f435a492b5435eba6e304a7114d2f919d400888cc6",
+                "sha256:e496a8ce2c256da1eb98bd15803a79bee00fc351f5dfb9ea82594a3f058309e0",
+                "sha256:e8b2816ebef96d83657b56306152a93909a83f23994f4b30ad4573b00bd11bb9",
+                "sha256:eaf675418ed6b3b31c7a989fd007fa7c3be66ce14e5c3b27336383604c9da85c",
+                "sha256:ec89ed91f2fa8e3f52ae53cd3cf640d6feff92ba90d62236a81e4e563ac0e991",
+                "sha256:ecc840861360ba9d176d413a5489b9a0aff6d6303d7e733e2c4623cfa26904a6",
+                "sha256:f09b286faeff3c750a879d336fb6d8713206fc97af3adc14def0cdd349df6000",
+                "sha256:f393cda562f79828f38a819f4788641ac7c4085f30f1ce1a68672baa686482bb",
+                "sha256:f917c1180fdb8623c2b75a99192f4025e412597c50b2ac870f156de8fb101119",
+                "sha256:fc78a84e2dfbc27afe4b2bd7c80c8db9bca75cc5b85df52bfe634596a1da846b",
+                "sha256:ff04ef6eec3eee8a5efef2401495967a916feaa353643defcc03fc74fe213b58"
             ],
-            "markers": "python_version >= '3.6'",
-            "version": "==1.16.0"
+            "markers": "python_version >= '3.8'",
+            "version": "==1.17.2"
         }
     },
     "develop": {
diff --git a/README.md b/README.md
index ce30172..3c56395 100644
--- a/README.md
+++ b/README.md
@@ -36,7 +36,7 @@
 
 ## Requirements
 
-- [Python 3.11](https://www.python.org)
+- [Python 3.13](https://www.python.org)
 - [MySQL](https://www.mysql.com/)
 - [Grafana](https://grafana.com/) _(optional)_
 - [Raspberry Pi](https://www.raspberrypi.org) + [CANable](https://canable.io) _(or similar devices)_
diff --git a/bin/sepicker b/bin/sepicker
index 9adfb0b..d422423 100755
--- a/bin/sepicker
+++ b/bin/sepicker
@@ -11,6 +11,6 @@ PARENT_FOLDER = os.path.realpath(
 )
 sys.path.insert(0, PARENT_FOLDER)
 
-from sepicker.__main__ import main  # noqa: E402
+from sepicker.__main__ import main
 
 main()
diff --git a/sepicker/config.py b/sepicker/config.py
index dfb24e3..fbeb952 100644
--- a/sepicker/config.py
+++ b/sepicker/config.py
@@ -2,9 +2,9 @@
 import logging
 import sys
 import os
-import dotenv
+from dotenv import load_dotenv
 
-dotenv.load_dotenv()
+load_dotenv()
 
 LOGGER = logging.getLogger(__name__)
 CONFIG_FILE = 'config.yml'
@@ -12,7 +12,7 @@
 
 def _exists(key, value):
     if value is None:
-        LOGGER.error('Configuration value for "{key}" not found.')
+        LOGGER.error('Configuration value for "%s" not found.', key)
         sys.exit(1)
 
     return value
diff --git a/sepicker/datastore/mysql.py b/sepicker/datastore/mysql.py
index 897a39c..99c4c64 100644
--- a/sepicker/datastore/mysql.py
+++ b/sepicker/datastore/mysql.py
@@ -21,7 +21,7 @@ def __enter__(self):
         self.cursor = self.connection.cursor()
         return self
 
-    def __exit__(self, exc_type, exc_val, exc_tb):
+    def __exit__(self):
         self.connection.commit()
         self.cursor.close()
         self.connection.close()
diff --git a/sepicker/interface/can_bus.py b/sepicker/interface/can_bus.py
index 4015b37..ca700b2 100644
--- a/sepicker/interface/can_bus.py
+++ b/sepicker/interface/can_bus.py
@@ -22,15 +22,15 @@ def __enter__(self):
             LOGGER.error('Can not connect to interface "%s".', self.interface)
             sys.exit(1)
 
-    def __exit__(self, exc_type, exc_val, exc_tb):
+    def __exit__(self):
         self.notifier.stop()
         self.bus.shutdown()
 
     def send(self, data):
         msg = can.Message(
             arbitration_id=self.sender,
-            data=data,
-            extended_id=False
+            is_extended_id=False,
+            data=data
         )
         self.bus.send(msg)
 
diff --git a/tests/test_elster_frame.py b/tests/test_elster_frame.py
index ef778b5..ce9a128 100644
--- a/tests/test_elster_frame.py
+++ b/tests/test_elster_frame.py
@@ -3,12 +3,11 @@
 
 
 class TestElsterFrame:
-    def setup(self):
-        self.elster_frame = ElsterFrame(
-            'OUTSIDE_TEMPERATURE',
-            '180.000c',
-            'dec_val'
-        )
+    elster_frame = ElsterFrame(
+        'OUTSIDE_TEMPERATURE',
+        '180.000c',
+        'dec_val'
+    )
 
     def test_message(self):
         assert self.elster_frame.message() == [49, 0, 250, 0, 12]

From 9d2f178fda9f0456899cc9cf635a5f8662fe95ad Mon Sep 17 00:00:00 2001
From: Daniel Bayerlein <danielbayerlein@users.noreply.github.com>
Date: Fri, 7 Mar 2025 14:49:14 +0100
Subject: [PATCH 2/3] feat: add support for mqtt

---
 .env.example                                  | 14 +++-
 Pipfile                                       | 23 ++---
 Pipfile.lock                                  | 45 +++++++++-
 README.md                                     | 61 +++++++++-----
 bin/sepicker                                  |  2 +-
 sepicker/__main__.py                          | 29 ++++---
 sepicker/config.py                            | 54 ++++++------
 sepicker/{datastore => datasinks}/__init__.py |  0
 sepicker/datasinks/mqtt.py                    | 75 +++++++++++++++++
 sepicker/{datastore => datasinks}/mysql.py    | 16 ++--
 sepicker/elster/elster.py                     | 33 ++++----
 sepicker/elster/elster_frame.py               | 36 ++++----
 sepicker/interface/can_bus.py                 | 37 +++++---
 .../grafana.json => grafana/dashboard.json}   |  0
 .../resources/{datastore => mysql}/seed.sql   |  0
 tests/test_can_bus.py                         | 74 ++++++++++++++++
 tests/test_config.py                          | 84 +++++++++++++++++++
 tests/test_elster.py                          | 80 ++++++++++++++++++
 tests/test_elster_frame.py                    | 11 +--
 tests/test_mqtt.py                            | 83 ++++++++++++++++++
 tests/test_mysql.py                           | 65 ++++++++++++++
 tests/test_version.py                         |  7 ++
 22 files changed, 704 insertions(+), 125 deletions(-)
 rename sepicker/{datastore => datasinks}/__init__.py (100%)
 create mode 100644 sepicker/datasinks/mqtt.py
 rename sepicker/{datastore => datasinks}/mysql.py (64%)
 rename sepicker/resources/{dashboard/grafana.json => grafana/dashboard.json} (100%)
 rename sepicker/resources/{datastore => mysql}/seed.sql (100%)
 create mode 100644 tests/test_can_bus.py
 create mode 100644 tests/test_config.py
 create mode 100644 tests/test_elster.py
 create mode 100644 tests/test_mqtt.py
 create mode 100644 tests/test_mysql.py
 create mode 100644 tests/test_version.py

diff --git a/.env.example b/.env.example
index b4367c9..3573727 100644
--- a/.env.example
+++ b/.env.example
@@ -1,4 +1,10 @@
-DB_DATABASE=heat-pump
-DB_HOST=127.0.0.1
-DB_USER=root
-DB_PASSWORD=
+MYSQL_DATABASE=sepicker
+MYSQL_HOST=127.0.0.1
+MYSQL_USER=root
+MYSQL_PASSWORD=
+
+MQTT_HOST=127.0.0.1
+MQTT_PORT=1883
+MQTT_TOPIC=sepicker
+MQTT_USER=
+MQTT_PASSWORD=
diff --git a/Pipfile b/Pipfile
index 5bdc14d..4f60672 100644
--- a/Pipfile
+++ b/Pipfile
@@ -4,18 +4,21 @@ url = "https://pypi.org/simple"
 verify_ssl = true
 
 [dev-packages]
-flake8 = "==7.1.1"
-flake8-bandit = "==4.1.1"
-flake8-bugbear = "==24.12.12"
-pep8-naming = "==0.14.1"
-pytest = "==8.3.4"
-pytest-cov = "==6.0.0"
+flake8 = "*"
+flake8-bandit = "*"
+flake8-bugbear = "*"
+pep8-naming = "*"
+pytest = "*"
+pytest-cov = "*"
+pytest-mock = "*"
+freezegun = "*"
 
 [packages]
-python-can = "==4.5.0"
-pyyaml = "==6.0.2"
-mysql-connector-python = "==9.2.0"
-python-dotenv = "==1.0.1"
+python-can = "*"
+pyyaml = "*"
+mysql-connector-python = "*"
+python-dotenv = "*"
+paho-mqtt = "*"
 
 [requires]
 python_version = "3.13"
diff --git a/Pipfile.lock b/Pipfile.lock
index 68fe759..67cf822 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "c8ebf026a145fa9311e1d9d36b1f6b34ba031c5c37e99738e984e0de9e3a1ba6"
+            "sha256": "cbe76075928ecaea84d7250ca1cff8122b40b6dc8b48876145216e8164d0c1bb"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -134,6 +134,15 @@
             "markers": "python_version >= '3.8'",
             "version": "==24.2"
         },
+        "paho-mqtt": {
+            "hashes": [
+                "sha256:12d6e7511d4137555a3f6ea167ae846af2c7357b10bc6fa4f7c3968fc1723834",
+                "sha256:6db9ba9b34ed5bc6b6e3812718c7e06e2fd7444540df2455d2c51bd58808feee"
+            ],
+            "index": "pypi",
+            "markers": "python_version >= '3.7'",
+            "version": "==2.1.0"
+        },
         "python-can": {
             "hashes": [
                 "sha256:1eec66833c1ac76a7e3d636ee0f8b4ba2752e892bab1c56ce74308b2216b5445",
@@ -444,6 +453,15 @@
             "markers": "python_version >= '3.7'",
             "version": "==3.1.41"
         },
+        "freezegun": {
+            "hashes": [
+                "sha256:b29dedfcda6d5e8e083ce71b2b542753ad48cfec44037b3fc79702e2980a89e9",
+                "sha256:bf111d7138a8abe55ab48a71755673dbaa4ab87f4cff5634a4442dfec34c15f1"
+            ],
+            "index": "pypi",
+            "markers": "python_version >= '3.7'",
+            "version": "==1.5.1"
+        },
         "iniconfig": {
             "hashes": [
                 "sha256:2d91e135bf72d31a410b17c16da610a82cb55f6b0477d1a902134b24a455b8b3",
@@ -549,6 +567,23 @@
             "index": "pypi",
             "version": "==4.1.0"
         },
+        "pytest-mock": {
+            "hashes": [
+                "sha256:0b72c38033392a5f4621342fe11e9219ac11ec9d375f8e2a0c164539e0d70f6f",
+                "sha256:2719255a1efeceadbc056d6bf3df3d1c5015530fb40cf347c0f9afac88410bd0"
+            ],
+            "index": "pypi",
+            "markers": "python_version >= '3.8'",
+            "version": "==3.14.0"
+        },
+        "python-dateutil": {
+            "hashes": [
+                "sha256:37dd54208da7e1cd875388217d5e00ebd4179249f90fb72437e91a35459a0ad3",
+                "sha256:a8b2bc7bffae282281c8140a97d3aa9c14da0b136dfe83f850eea9a5f7470427"
+            ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2'",
+            "version": "==2.9.0.post0"
+        },
         "pyyaml": {
             "hashes": [
                 "sha256:062582fca9fabdd2c8b54a3ef1c978d786e0f6b3a1510e0ac93ef59e0ddae2bc",
@@ -611,6 +646,14 @@
             "markers": "python_version >= '3.7'",
             "version": "==5.0.1"
         },
+        "six": {
+            "hashes": [
+                "sha256:4721f391ed90541fddacab5acf947aa0d3dc7d27b2e1e8eda2be8970586c3274",
+                "sha256:ff70335d468e7eb6ec65b95b99d3a2836546063f63acc5171de367e834932a81"
+            ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2'",
+            "version": "==1.17.0"
+        },
         "stevedore": {
             "hashes": [
                 "sha256:8cc040628f3cea5d7128f2e76cf486b2251a4e543c7b938f58d9a377f6694a2d",
diff --git a/README.md b/README.md
index 3c56395..658dc68 100644
--- a/README.md
+++ b/README.md
@@ -19,10 +19,9 @@
 ## Table of Contents
 
 - [Requirements](#requirements)
+- [Integrations](#integrations)
 - [Installation](#installation)
   - [Cron Job](#cron-job)
-  - [Database](#database)
-  - [Grafana <em>(optional)</em>](#grafana-optional)
 - [Config](#config)
   - [CAN bus](#can-bus)
     - [Example](#example)
@@ -30,16 +29,29 @@
   - [Data](#data)
     - [Example](#example-1)
     - [Description](#description-1)
-  - [Database](#database-1)
+  - [MySQL](#mysql)
+    - [Grafana](#grafana)
+  - [MQTT](#mqtt)
 - [Resources](#resources)
 - [License](#license)
 
 ## Requirements
 
 - [Python 3.13](https://www.python.org)
-- [MySQL](https://www.mysql.com/)
-- [Grafana](https://grafana.com/) _(optional)_
 - [Raspberry Pi](https://www.raspberrypi.org) + [CANable](https://canable.io) _(or similar devices)_
+- Optional
+  - [MySQL](https://www.mysql.com)
+  - [MQTT](https://mqtt.org)
+  - [Grafana](https://grafana.com)
+
+## Integrations
+
+sepicker provides the following integrations:
+
+- MySQL
+- MQTT
+
+Choose the right one for you. If you miss an integration, feel free to create an issue or PR.
 
 ## Installation
 
@@ -64,14 +76,6 @@ To collect the data every _x_ minutes, it's necessary to create a cron job. This
 */2 * * * * /home/pi/sepicker/bin/sepicker
 ```
 
-### Database
-
-Execute the [seed file](./sepicker/resources/datastore/seed.sql) via MySQL command line or copy the query into your MySQL shell.
-
-### Grafana _(optional)_
-
-With [Grafana](https://grafana.com/) you can create your own dashboard with widgets or use the existing [template](./sepicker/resources/dashboard/grafana.json).
-
 ## Config
 
 The configuration for the CAN bus and for the data to be queried is located in [config.yml](./config.yml). The database configuration is located in [.env](./.env.example).
@@ -126,17 +130,33 @@ data:
   - `mil_val`
   - `little_endian`
 
-### Database
+### MySQL
+
+Rename the [`.env.example`](./.env.example) file to `.env` or create it with the following content:
+
+```
+MYSQL_DATABASE=sepicker
+MYSQL_HOST=127.0.0.1
+MYSQL_USER=root
+MYSQL_PASSWORD=
+```
+
+Execute the [seed file](./sepicker/resources/mysql/seed.sql) via MySQL command line or copy the query into your MySQL shell.
+
+#### Grafana
+
+With [Grafana](https://grafana.com) you can create your own dashboard with widgets or use the existing [template](./sepicker/resources/grafana/dashboard.json).
 
-File: [.env](./.env.example)
+### MQTT
 
-Rename the `.env.example` file to `.env` or create it with the following content:
+Rename the [`.env.example`](./.env.example) file to `.env` or create it with the following content:
 
 ```
-DB_DATABASE=heat-pump
-DB_HOST=127.0.0.1
-DB_USER=root
-DB_PASSWORD=
+MQTT_HOST=127.0.0.1
+MQTT_PORT=1883
+MQTT_TOPIC=sepicker
+MQTT_USER=
+MQTT_PASSWORD=
 ```
 
 ## Resources
@@ -144,6 +164,7 @@ DB_PASSWORD=
 - http://juerg5524.ch/list_data.php
 - https://github.com/andig/goelster
 - https://github.com/Andy2003/heat-pump-api
+- https://elkement.art/2016/08/24/hacking-my-heat-pump-part-2-logging-energy-values/
 
 ## License
 
diff --git a/bin/sepicker b/bin/sepicker
index d422423..9adfb0b 100755
--- a/bin/sepicker
+++ b/bin/sepicker
@@ -11,6 +11,6 @@ PARENT_FOLDER = os.path.realpath(
 )
 sys.path.insert(0, PARENT_FOLDER)
 
-from sepicker.__main__ import main
+from sepicker.__main__ import main  # noqa: E402
 
 main()
diff --git a/sepicker/__main__.py b/sepicker/__main__.py
index 1bbecfc..b09e29d 100644
--- a/sepicker/__main__.py
+++ b/sepicker/__main__.py
@@ -3,22 +3,24 @@
 
 from .elster.elster import Elster
 from .interface.can_bus import CanBus
-from .datastore.mysql import Mysql as Datastore
+from .datasinks.mysql import Mysql
+from .datasinks.mqtt import Mqtt
 from .config import (
-    CAN as CAN_CONFIG,
-    DATA,
-    DATABASE as DATABASE_CONFIG,
-    LOG_LEVEL
+    LOG_LEVEL,
+    read_config_file,
+    get_mqtt_config,
+    get_mysql_config
 )
 
 logging.basicConfig(level=LOG_LEVEL)
 
 
 def main():
-    elster = Elster(sender=CAN_CONFIG['sender'], items=DATA)
+    config = read_config_file()
+    elster = Elster(sender=config['can']['sender'], items=config['data'])
 
-    with CanBus(**CAN_CONFIG) as can_bus:
-        can_bus.notifier(elster.listener)
+    with CanBus(**config['can']) as can_bus:
+        can_bus.set_notifier(elster.listener)
 
         for frame in elster.frames:
             can_bus.send(frame.message())
@@ -35,8 +37,15 @@ def main():
                 break
 
     # Save result
-    with Datastore(**DATABASE_CONFIG) as db:
-        db.save(elster.values)
+    mysql_config = get_mysql_config()
+    if mysql_config['host']:
+        with Mysql(**mysql_config) as db:
+            db.save(elster.values)
+
+    mqtt_config = get_mqtt_config()
+    if mqtt_config['host']:
+        with Mqtt(**mqtt_config) as mqtt:
+            mqtt.publish(elster.values)
 
 
 if __name__ == '__main__':
diff --git a/sepicker/config.py b/sepicker/config.py
index fbeb952..dd36845 100644
--- a/sepicker/config.py
+++ b/sepicker/config.py
@@ -6,20 +6,12 @@
 
 load_dotenv()
 
-LOGGER = logging.getLogger(__name__)
-CONFIG_FILE = 'config.yml'
+logger = logging.getLogger(__name__)
+CONFIG_FILE: str = 'config.yml'
 
 
-def _exists(key, value):
-    if value is None:
-        LOGGER.error('Configuration value for "%s" not found.', key)
-        sys.exit(1)
-
-    return value
-
-
-def _read_config_file():
-    config = os.path.realpath(
+def read_config_file() -> dict:
+    config: str = os.path.realpath(
         os.path.join(
             os.path.dirname(os.path.realpath(__file__)),
             '..',
@@ -29,21 +21,31 @@ def _read_config_file():
     try:
         with open(config, 'r') as file:
             return yaml.full_load(file)
-    except KeyError:
-        LOGGER.error('Configuration file "%s" not valid.', config)
+    except yaml.YAMLError as e:
+        logger.error(f'Configuration file "{config}" not valid: {e}')
         sys.exit(1)
-    except FileNotFoundError:
-        LOGGER.error('Configuration file "%s" not found.', config)
+    except FileNotFoundError as e:
+        logger.error(f'Configuration file "{config}" not found: {e}')
         sys.exit(1)
 
 
-yaml_config = _read_config_file()
-CAN = yaml_config['can']
-DATA = yaml_config['data']
-LOG_LEVEL = os.getenv('LOG_LEVEL', 'INFO')
-DATABASE = {
-    'user': _exists('DB_USER', os.getenv('DB_USER')),
-    'password': _exists('DB_PASSWORD', os.getenv('DB_PASSWORD')),
-    'host': _exists('DB_HOST', os.getenv('DB_HOST')),
-    'database': _exists('DB_DATABASE', os.getenv('DB_DATABASE'))
-}
+def get_mysql_config() -> dict:
+    return {
+        'user': os.getenv('MYSQL_USER'),
+        'password': os.getenv('MYSQL_PASSWORD'),
+        'host': os.getenv('MYSQL_HOST'),
+        'database': os.getenv('MYSQL_DATABASE')
+    }
+
+
+def get_mqtt_config() -> dict:
+    return {
+        'host': os.getenv('MQTT_HOST'),
+        'port': int(os.getenv('MQTT_PORT', '1883')),
+        'topic': os.getenv('MQTT_TOPIC'),
+        'user': os.getenv('MQTT_USER'),
+        'password': os.getenv('MQTT_PASSWORD'),
+    }
+
+
+LOG_LEVEL: str = os.getenv('LOG_LEVEL', 'INFO')
diff --git a/sepicker/datastore/__init__.py b/sepicker/datasinks/__init__.py
similarity index 100%
rename from sepicker/datastore/__init__.py
rename to sepicker/datasinks/__init__.py
diff --git a/sepicker/datasinks/mqtt.py b/sepicker/datasinks/mqtt.py
new file mode 100644
index 0000000..07670f5
--- /dev/null
+++ b/sepicker/datasinks/mqtt.py
@@ -0,0 +1,75 @@
+from datetime import datetime
+import logging
+from typing import Optional
+import paho.mqtt.client as paho
+import json
+
+logger = logging.getLogger(__name__)
+
+
+class Mqtt:
+    def __init__(
+            self,
+            host: str,
+            port: int,
+            topic: str,
+            user: Optional[str],
+            password: Optional[str]
+    ) -> None:
+        self.host: str = host
+        self.port: int = port
+        self.topic: str = topic
+        self.user: Optional[str] = user
+        self.password: Optional[str] = password
+
+    def __enter__(self) -> 'Mqtt':
+        client = paho.Client()
+        client.on_connect = self.on_connect
+        client.on_publish = self.on_publish
+
+        client.username_pw_set(self.user, self.password)
+        client.connect(self.host, self.port)
+        client.loop_start()
+
+        self.client: paho.Client = client
+
+        return self
+
+    def __exit__(
+        self,
+        exc_type: type,
+        exc_val: Exception,
+        exc_tb: type
+    ) -> None:
+        self.client.loop_stop()
+        self.client.disconnect()
+
+    def on_connect(
+        self,
+        client: paho.Client,
+        userdata: Optional[dict],
+        flags: int,
+        rc: int
+    ) -> None:
+        logger.debug('CONNACK received with code %d.' % (rc))
+
+    def on_publish(
+        self,
+        client: paho.Client,
+        userdata: Optional[dict],
+        mid: int
+    ):
+        logger.debug("mid: " + str(mid))
+
+    def publish(self, values: list[tuple[datetime, str, int | str]]) -> None:
+        payload = [
+            {
+                "timestamp": timestamp.isoformat(),
+                "name": name,
+                "value": value
+            }
+            for inner_list in values
+            for timestamp, name, value in [inner_list]
+        ]
+
+        self.client.publish(self.topic, json.dumps(payload), retain=True)
diff --git a/sepicker/datastore/mysql.py b/sepicker/datasinks/mysql.py
similarity index 64%
rename from sepicker/datastore/mysql.py
rename to sepicker/datasinks/mysql.py
index 99c4c64..ac183a2 100644
--- a/sepicker/datastore/mysql.py
+++ b/sepicker/datasinks/mysql.py
@@ -1,17 +1,18 @@
+from datetime import datetime
 import logging
 import mysql.connector as mysql
 
-LOGGER = logging.getLogger(__name__)
+logger = logging.getLogger(__name__)
 
 
 class Mysql:
-    def __init__(self, user, password, host, database):
+    def __init__(self, user: str, password: str, host: str, database: str):
         self.user = user
         self.password = password
         self.host = host
         self.database = database
 
-    def __enter__(self):
+    def __enter__(self) -> 'Mysql':
         self.connection = mysql.connect(
             user=self.user,
             password=self.password,
@@ -21,12 +22,17 @@ def __enter__(self):
         self.cursor = self.connection.cursor()
         return self
 
-    def __exit__(self):
+    def __exit__(
+        self,
+        exc_type: type,
+        exc_val: Exception,
+        exc_tb: type
+    ):
         self.connection.commit()
         self.cursor.close()
         self.connection.close()
 
-    def save(self, values):
+    def save(self, values: list[tuple[datetime, str, int | str]]) -> None:
         self.cursor.executemany(
             'INSERT INTO sepicker(timestamp, name, value) VALUES(%s, %s, %s)',
             values
diff --git a/sepicker/elster/elster.py b/sepicker/elster/elster.py
index 97d9587..ce1a847 100644
--- a/sepicker/elster/elster.py
+++ b/sepicker/elster/elster.py
@@ -1,35 +1,38 @@
 import ctypes
 import logging
 from datetime import datetime
+import can
 from .elster_frame import ElsterFrame
 
-LOGGER = logging.getLogger(__name__)
+logger = logging.getLogger(__name__)
 
 
 class Elster:
-    RESPONSE = 0x2
+    RESPONSE: int = 0x2
 
-    def __init__(self, sender, items):
-        self.frames = [ElsterFrame(**item) for item in items]
-        self.values = []
+    def __init__(self, sender: int, items: list) -> None:
+        self.frames: list[ElsterFrame] = [
+            ElsterFrame(**item) for item in items
+        ]
+        self.values: list[tuple] = []
         self.datetime = datetime.now()
-        self.sender = int(str(sender), 16)
+        self.sender: int = int(str(sender), 16)
 
-    def listener(self, msg):
-        data = msg.data
+    def listener(self, msg: 'can.Message') -> None:
+        data: bytearray = msg.data
 
         receiver = (data[0] & 0xf0) * 8 + (data[1] & 0x7f)
-        type = data[0] & 0x0f
+        msg_type = data[0] & 0x0f
 
-        if type != self.RESPONSE or \
+        if msg_type != self.RESPONSE or \
            receiver != self.sender or \
            not self._exist_receiver(msg.arbitration_id):
             return
 
         if data[2] == 0xfa:
-            register = ((data[3] & 0xff) << 8) | (data[4] & 0xff)
+            register: int = ((data[3] & 0xff) << 8) | (data[4] & 0xff)
             if len(data) == 7:
-                value = ctypes.c_int16(
+                value: int = ctypes.c_int16(
                     ((data[5] & 0xff) << 8) | (data[6] & 0xff)
                 ).value
         else:
@@ -45,14 +48,14 @@ def listener(self, msg):
             (self.datetime, entry.name, entry.formatter(value))
         )
 
-    def is_done(self):
+    def is_done(self) -> bool:
         return len(self.values) == len(self.frames)
 
-    def _exist_receiver(self, receiver):
+    def _exist_receiver(self, receiver: int) -> bool:
         frames = [frame for frame in self.frames if frame.receiver == receiver]
         return len(frames) > 0
 
-    def _get_frame(self, receiver, register):
+    def _get_frame(self, receiver: int, register: int) -> 'ElsterFrame':
         for frame in self.frames:
             if frame.receiver == receiver and frame.register == register:
                 return frame
diff --git a/sepicker/elster/elster_frame.py b/sepicker/elster/elster_frame.py
index fad3af9..fece338 100644
--- a/sepicker/elster/elster_frame.py
+++ b/sepicker/elster/elster_frame.py
@@ -1,20 +1,21 @@
 import logging
+from typing import Dict
 
-LOGGER = logging.getLogger(__name__)
+logger = logging.getLogger(__name__)
 
 
 class ElsterFrame:
-    READ = 0x1
+    READ: int = 0x1
 
-    def __init__(self, name, index, format=None):
-        receiver, register = str(index).split('.')
-        self.name = name
-        self.receiver = int(receiver, 16)
-        self.register = int(register, 16)
-        self.format = format
+    def __init__(self, name: str, index: str, format: str | None = None):
+        receiver, register = index.split('.')
+        self.name: str = name
+        self.receiver: int = int(receiver, 16)
+        self.register: int = int(register, 16)
+        self.format: str | None = format
 
-    def message(self):
-        msg = [0] * 5
+    def message(self) -> list[int]:
+        msg: list[int] = [0] * 5
         msg[0] = (self.READ & 0xf) | ((self.receiver >> 3) & 0xf0)
         msg[1] = self.receiver & 0x7f
         msg[2] = 0xfa
@@ -23,12 +24,15 @@ def message(self):
 
         return msg
 
-    def formatter(self, value):
+    def formatter(self, value: int) -> int | str:
         if not self.format:
             return value
 
-        return {
-            'dec_val': '{0:.1f}'.format(value / 10.0),
-            'mil_val': '{0:.3f}'.format(value / 1000.0),
-            'little_endian': '{:d}'.format((value >> 8) + 256 * (value & 0xff))
-        }[self.format]
+        formats: Dict[str, callable] = {
+            'dec_val': lambda x: '{:.1f}'.format(x / 10.0),
+            'mil_val': lambda x: '{:.3f}'.format(x / 1000.0),
+            'little_endian': lambda x: '{:d}'.format(
+                (x >> 8) + 256 * (x & 0xff)
+            )
+        }
+        return formats[self.format](value)
diff --git a/sepicker/interface/can_bus.py b/sepicker/interface/can_bus.py
index ca700b2..6ea6602 100644
--- a/sepicker/interface/can_bus.py
+++ b/sepicker/interface/can_bus.py
@@ -2,31 +2,44 @@
 import sys
 import can
 
-LOGGER = logging.getLogger(__name__)
+logger = logging.getLogger(__name__)
 
 
 class CanBus:
-    def __init__(self, interface, sender):
+    def __init__(self, interface: str, sender: int) -> None:
         self.interface = interface
         self.sender = int(str(sender), 16)
+        self.notifier = None
+        self.bus = None
 
-    def __enter__(self):
+    def __enter__(self) -> 'CanBus':
         try:
             self.bus = can.interface.Bus(
                 channel=self.interface,
-                bustype='socketcan'
+                interface='socketcan'
             )
-
             return self
-        except OSError:
-            LOGGER.error('Can not connect to interface "%s".', self.interface)
+        except OSError as e:
+            logger.error(
+                'Cannot connect to interface "%s": %s',
+                self.interface,
+                str(e)
+            )
             sys.exit(1)
 
-    def __exit__(self):
-        self.notifier.stop()
-        self.bus.shutdown()
+    def __exit__(
+            self,
+            exc_type: type,
+            exc_val: Exception,
+            exc_tb: type
+    ) -> None:
+        if self.notifier:
+            self.notifier.stop()
+
+        if self.bus:
+            self.bus.shutdown()
 
-    def send(self, data):
+    def send(self, data: bytes) -> None:
         msg = can.Message(
             arbitration_id=self.sender,
             is_extended_id=False,
@@ -34,5 +47,5 @@ def send(self, data):
         )
         self.bus.send(msg)
 
-    def notifier(self, listener):
+    def set_notifier(self, listener: 'can.Listener') -> None:
         self.notifier = can.Notifier(self.bus, [listener])
diff --git a/sepicker/resources/dashboard/grafana.json b/sepicker/resources/grafana/dashboard.json
similarity index 100%
rename from sepicker/resources/dashboard/grafana.json
rename to sepicker/resources/grafana/dashboard.json
diff --git a/sepicker/resources/datastore/seed.sql b/sepicker/resources/mysql/seed.sql
similarity index 100%
rename from sepicker/resources/datastore/seed.sql
rename to sepicker/resources/mysql/seed.sql
diff --git a/tests/test_can_bus.py b/tests/test_can_bus.py
new file mode 100644
index 0000000..dbf52b4
--- /dev/null
+++ b/tests/test_can_bus.py
@@ -0,0 +1,74 @@
+import can
+from freezegun import freeze_time
+import pytest
+
+from sepicker.elster.elster import Elster
+from sepicker.interface.can_bus import CanBus
+
+
+class TestCanBus:
+    @pytest.fixture
+    def can_bus(self):
+        return CanBus(interface='can0', sender=680)
+
+    @pytest.fixture
+    def mock_can_interface_bus(self, mocker):
+        return mocker.patch('can.interface.Bus')
+
+    @pytest.fixture
+    @freeze_time("2024-11-10")
+    def elster(self):
+        return Elster(
+            sender=680,
+            items=[
+                {
+                    "name": 'OUTSIDE_TEMPERATURE',
+                    "index": '180.000c',
+                    "format": 'dec_val'
+                }
+            ]
+        )
+
+    def test_init(self, can_bus):
+        assert can_bus.interface == 'can0'
+        assert can_bus.sender == int('680', 16)
+
+    def test_enter_success(self, mock_can_interface_bus, can_bus, elster):
+        with can_bus:
+            can_bus.set_notifier(elster.listener)
+            assert can_bus.bus is not None
+            mock_can_interface_bus.assert_called_once_with(
+                channel='can0',
+                interface='socketcan'
+            )
+
+    def test_enter_failure(self, mocker, can_bus):
+        mock_exit = mocker.patch('sys.exit', side_effect=SystemExit)
+        with pytest.raises(SystemExit):
+            with can_bus:
+                pass
+        mock_exit.assert_called_once_with(1)
+
+    def test_exit(self, mock_can_interface_bus, mocker, can_bus):
+        can_bus.notifier = mocker.Mock()
+        with can_bus:
+            pass
+        can_bus.notifier.stop.assert_called_once()
+        mock_can_interface_bus.return_value.shutdown.assert_called_once()
+
+    def test_send(self, mock_can_interface_bus, mocker, can_bus, elster):
+        with can_bus:
+            can_bus.set_notifier(elster.listener)
+            can_bus.send(bytearray([0xd2, 0x00, 0x0c, 0x01, 0x80]))
+            mock_can_interface_bus.return_value.send.assert_called_once()
+            sent_msg = mock_can_interface_bus.return_value.send.call_args[0][0]
+            assert sent_msg.arbitration_id == int('680', 16)
+            assert sent_msg.data == bytearray([0xd2, 0x00, 0x0c, 0x01, 0x80])
+            assert sent_msg.is_extended_id is False
+
+    def test_set_notifier(self, mock_can_interface_bus, mocker, can_bus):
+        listener = mocker.Mock()
+        with can_bus:
+            can_bus.set_notifier(listener)
+            assert isinstance(can_bus.notifier, can.Notifier)
+            assert listener in can_bus.notifier.listeners
diff --git a/tests/test_config.py b/tests/test_config.py
new file mode 100644
index 0000000..86588b4
--- /dev/null
+++ b/tests/test_config.py
@@ -0,0 +1,84 @@
+import logging
+import pytest
+import yaml
+import os
+
+from sepicker.config import read_config_file, get_mqtt_config, get_mysql_config
+
+
+def test_read_config_file_success(mocker):
+    mock_config_data = {
+        'can': {'key1': 'value1'},
+        'data': {'key2': 'value2'}
+    }
+    mock_open = mocker.mock_open(read_data=yaml.dump(mock_config_data))
+    mocker.patch('builtins.open', mock_open)
+    mocker.patch('os.path.realpath', return_value='/path/to/config.yml')
+    mocker.patch('os.path.join', return_value='/path/to/config.yml')
+
+    config = read_config_file()
+    assert config == mock_config_data
+
+
+def test_read_config_file_not_found(mocker, caplog):
+    mocker.patch('builtins.open', side_effect=FileNotFoundError)
+    mocker.patch('os.path.realpath', return_value='/path/to/config.yml')
+    mocker.patch('os.path.join', return_value='/path/to/config.yml')
+
+    with pytest.raises(SystemExit):
+        read_config_file()
+
+    with caplog.at_level(logging.INFO):
+        assert 'Configuration file "/path/to/config.yml" not found:' \
+            in caplog.text
+
+
+def test_read_config_file_yaml_error(mocker, caplog):
+    mock_open = mocker.mock_open()
+    mocker.patch('builtins.open', mock_open)
+    mocker.patch('os.path.realpath', return_value='/path/to/config.yml')
+    mocker.patch('os.path.join', return_value='/path/to/config.yml')
+    mocker.patch('yaml.full_load', side_effect=yaml.YAMLError('Invalid YAML'))
+
+    with pytest.raises(SystemExit):
+        read_config_file()
+
+    with caplog.at_level(logging.INFO):
+        assert 'Configuration file "/path/to/config.yml" not valid:' \
+            in caplog.text
+
+
+def test_mysql_config(mocker):
+    mocker.patch.dict(os.environ, {
+        'MYSQL_USER': 'test_user',
+        'MYSQL_PASSWORD': 'test_password',
+        'MYSQL_HOST': 'test_host',
+        'MYSQL_DATABASE': 'test_database'
+    })
+
+    mysql_config = get_mysql_config()
+    assert mysql_config == {
+        'user': 'test_user',
+        'password': 'test_password',
+        'host': 'test_host',
+        'database': 'test_database'
+    }
+
+
+def test_mqtt_config(mocker):
+    mocker.patch.dict(os.environ, {
+        'MQTT_HOST': 'test_mqtt_host',
+        'MQTT_PORT': '1883',
+        'MQTT_TOPIC': 'test_topic',
+        'MQTT_USER': 'test_mqtt_user',
+        'MQTT_PASSWORD': 'test_mqtt_password'
+    })
+
+    mqtt_config = get_mqtt_config()
+    assert mqtt_config == {
+        'host': 'test_mqtt_host',
+        'port': 1883,
+        'topic': 'test_topic',
+        'user': 'test_mqtt_user',
+        'password': 'test_mqtt_password'
+    }
diff --git a/tests/test_elster.py b/tests/test_elster.py
new file mode 100644
index 0000000..ce21eb9
--- /dev/null
+++ b/tests/test_elster.py
@@ -0,0 +1,80 @@
+from datetime import datetime
+from freezegun import freeze_time
+import pytest
+
+from sepicker.elster.elster import Elster
+
+
+class TestElster:
+    @pytest.fixture
+    @freeze_time("2024-11-10")
+    def elster(self):
+        return Elster(
+            sender=680,
+            items=[
+                {
+                    "name": 'OUTSIDE_TEMPERATURE',
+                    "index": '180.000c',
+                    "format": 'dec_val'
+                }
+            ]
+        )
+
+    def test_init(self, elster):
+        assert elster.frames[0].name == 'OUTSIDE_TEMPERATURE'
+        assert elster.frames[0].receiver == int('180', 16)
+        assert elster.frames[0].register == int('000c', 16)
+        assert elster.frames[0].format == 'dec_val'
+        assert elster.values == []
+        assert elster.datetime == datetime(2024, 11, 10)
+        assert elster.sender == int(str(680), 16)
+
+    @pytest.mark.parametrize("msg_data, arbitration_id", [
+        ([0xd2, 0x00, 0x0c, 0x01, 0x80], int('180', 16)),
+        ([0xd2, 0x00, 0xfa, 0x00, 0x0c, 0x01, 0x80], int('180', 16)),
+    ])
+    def test_listener(self, msg_data, arbitration_id, mocker, elster):
+        msg_mock = mocker.Mock(
+            spec="can.Message",
+            data=bytearray(msg_data),
+            arbitration_id=arbitration_id
+        )
+        elster.listener(msg_mock)
+
+        assert len(elster.values) == 1
+        assert elster.values[0][0] == datetime(2024, 11, 10)
+        assert elster.values[0][1] == 'OUTSIDE_TEMPERATURE'
+        assert elster.values[0][2] == '38.4'
+
+    def test_listener_invalid(self, mocker, elster):
+        msg_mock = mocker.Mock(
+            spec="can.Message",
+            data=bytearray([0xd2, 0x00, 0x0c, 0x01, 0x80]),
+            arbitration_id=int('601', 16)
+        )
+        elster.listener(msg_mock)
+
+        assert len(elster.values) == 0
+
+    def test_is_done(self, elster):
+        elster.values = [
+            (datetime.now(), 'OUTSIDE_TEMPERATURE', int('180', 16))
+        ]
+        assert elster.is_done()
+
+        elster.values = [
+            (datetime.now(), 'OUTSIDE_TEMPERATURE', int('180', 16)),
+            (datetime.now(), 'ISTTEMPERATUR_HK_2', int('601', 16))
+        ]
+        assert not elster.is_done()
+
+    def test__exist_receiver(self, elster):
+        assert elster._exist_receiver(int('180', 16))
+        assert not elster._exist_receiver(int('601', 16))
+
+    def test__get_frame(self, elster):
+        frame = elster._get_frame(int('180', 16), 0x0c)
+        assert frame.name == 'OUTSIDE_TEMPERATURE'
+
+        frame = elster._get_frame(int('601', 16), 0x0c)
+        assert frame is None
diff --git a/tests/test_elster_frame.py b/tests/test_elster_frame.py
index ce9a128..33de76e 100644
--- a/tests/test_elster_frame.py
+++ b/tests/test_elster_frame.py
@@ -3,11 +3,12 @@
 
 
 class TestElsterFrame:
-    elster_frame = ElsterFrame(
-        'OUTSIDE_TEMPERATURE',
-        '180.000c',
-        'dec_val'
-    )
+    def setup_method(self):
+        self.elster_frame = ElsterFrame(
+            'OUTSIDE_TEMPERATURE',
+            '180.000c',
+            'dec_val'
+        )
 
     def test_message(self):
         assert self.elster_frame.message() == [49, 0, 250, 0, 12]
diff --git a/tests/test_mqtt.py b/tests/test_mqtt.py
new file mode 100644
index 0000000..deda972
--- /dev/null
+++ b/tests/test_mqtt.py
@@ -0,0 +1,83 @@
+import logging
+from freezegun import freeze_time
+import pytest
+from datetime import datetime
+import json
+
+from sepicker.datasinks.mqtt import Mqtt
+
+
+class TestMqtt:
+    @pytest.fixture(autouse=True)
+    def mqtt_client_mock(self, mocker):
+        return mocker.patch('paho.mqtt.client.Client', autospec=True)
+
+    @pytest.fixture
+    def mqtt_instance(self):
+        user = 'user'
+        password = 'password'  # noqa: S105
+        host = 'localhost'
+        port = 1883
+        topic = 'test/topic'
+
+        return Mqtt(host, port, topic, user, password)
+
+    def test_mqtt_init(self, mqtt_instance):
+        assert mqtt_instance.host == 'localhost'
+        assert mqtt_instance.port == 1883
+        assert mqtt_instance.topic == 'test/topic'
+        assert mqtt_instance.user == 'user'
+        assert mqtt_instance.password == 'password'  # noqa: S105
+
+    def test_mqtt_enter(self, mqtt_instance, mqtt_client_mock):
+        client_instance = mqtt_client_mock.return_value
+
+        with mqtt_instance as mqtt:
+            assert mqtt.client == client_instance
+
+        mqtt_client_mock.assert_called_once()
+        client_instance.username_pw_set.assert_called_once_with(
+            'user',
+            'password'
+        )
+        client_instance.connect.assert_called_once_with('localhost', 1883)
+        client_instance.loop_start.assert_called_once()
+
+    def test_mqtt_exit(self, mqtt_instance, mqtt_client_mock):
+        with mqtt_instance:
+            pass
+
+        client_instance = mqtt_client_mock.return_value
+        client_instance.loop_stop.assert_called_once()
+        client_instance.disconnect.assert_called_once()
+
+    def test_on_connect(self, mqtt_instance, mocker, caplog):
+        client_mock = mocker.Mock()
+        with caplog.at_level(logging.DEBUG):
+            mqtt_instance.on_connect(client_mock, None, None, 0)
+        assert 'CONNACK received with code 0.' in caplog.text
+
+    def test_on_publish(self, mqtt_instance, mocker, caplog):
+        client_mock = mocker.Mock()
+        with caplog.at_level(logging.DEBUG):
+            mqtt_instance.on_publish(client_mock, None, 1)
+        assert 'mid: 1' in caplog.text
+
+    @freeze_time("2024-11-10")
+    def test_publish(self, mqtt_instance, mqtt_client_mock):
+        client_instance = mqtt_client_mock.return_value
+        values = [(datetime.now(), 'OUTSIDE_TEMPERATURE', '38.4')]
+
+        with mqtt_instance as mqtt:
+            mqtt.publish(values)
+            client_instance.publish.assert_called_once_with(
+                'test/topic',
+                json.dumps([
+                    {
+                        "timestamp": "2024-11-10T00:00:00",
+                        "name": 'OUTSIDE_TEMPERATURE',
+                        "value": '38.4'
+                    }
+                ]),
+                retain=True
+            )
diff --git a/tests/test_mysql.py b/tests/test_mysql.py
new file mode 100644
index 0000000..77f2450
--- /dev/null
+++ b/tests/test_mysql.py
@@ -0,0 +1,65 @@
+from datetime import datetime
+import pytest
+
+from sepicker.datasinks.mysql import Mysql
+
+
+class TestMysql:
+    @pytest.fixture(autouse=True)
+    def mock_mysql_connect(self, mocker):
+        return mocker.patch('mysql.connector.connect', autospec=True)
+
+    @pytest.fixture
+    def mysql_instance(self):
+        user = 'user'
+        password = 'password'  # noqa: S105
+        host = 'localhost'
+        database = 'database'
+
+        return Mysql(user, password, host, database)
+
+    def test_mysql_init(self, mysql_instance):
+        assert mysql_instance.user == 'user'
+        assert mysql_instance.password == 'password'  # noqa: S105
+        assert mysql_instance.host == 'localhost'
+        assert mysql_instance.database == 'database'
+
+    def test_enter(self, mock_mysql_connect, mysql_instance):
+        client_instance = mock_mysql_connect.return_value
+
+        with mysql_instance:
+            pass
+
+        mock_mysql_connect.assert_called_once_with(  # noqa: S106
+            user='user',
+            password='password',
+            host='localhost',
+            database='database'
+        )
+        assert client_instance.cursor.called
+
+    def test_exit(self, mock_mysql_connect, mysql_instance):
+        client_instance = mock_mysql_connect.return_value
+
+        with mysql_instance:
+            pass
+
+        assert client_instance.commit.called
+        assert client_instance.cursor().close.called
+        assert client_instance.close.called
+
+    def test_save(self, mock_mysql_connect, mysql_instance):
+        client_instance = mock_mysql_connect.return_value
+        values = [(datetime.now(), 'OUTSIDE_TEMPERATURE', '24.5')]
+
+        with mysql_instance as mysql:
+            mysql.save(values)
+
+        client_instance. \
+            cursor() \
+            .executemany \
+            .assert_called_once_with(
+                'INSERT INTO sepicker(timestamp, name, value) '
+                'VALUES(%s, %s, %s)',
+                values
+            )
diff --git a/tests/test_version.py b/tests/test_version.py
new file mode 100644
index 0000000..9151bdd
--- /dev/null
+++ b/tests/test_version.py
@@ -0,0 +1,7 @@
+import re
+from sepicker._version import __version__
+
+
+def test_version():
+    pattern = r"^(\d+)\.(\d+)\.(\d+)$"
+    assert re.match(pattern, __version__) is not None

From 03ea7a1878fef254c7a04639b83d1880e9a6ecb2 Mon Sep 17 00:00:00 2001
From: Daniel Bayerlein <danielbayerlein@users.noreply.github.com>
Date: Fri, 7 Mar 2025 15:18:05 +0100
Subject: [PATCH 3/3] ci: add publish workflow

---
 .dockerignore                 | 16 ++++++++++
 .github/workflows/ci.yml      |  6 ++--
 .github/workflows/publish.yml | 58 +++++++++++++++++++++++++++++++++++
 Dockerfile                    | 25 +++++++++++++++
 crontab                       |  1 +
 5 files changed, 104 insertions(+), 2 deletions(-)
 create mode 100644 .dockerignore
 create mode 100644 .github/workflows/publish.yml
 create mode 100644 Dockerfile
 create mode 100644 crontab

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..61c3491
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,16 @@
+.coverage
+.dockerignore
+.env
+.env.example
+.git
+.github
+.gitignore
+.pytest_cache
+.vscode
+compose.yml
+Dockerfile
+htmlcov
+LICENSE
+README.md
+setup.cfg
+tests
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 58b11c1..fd8dc99 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,9 +2,11 @@ name: CI
 
 on:
   push:
-    branches: [main]
+    branches:
+      - main
   pull_request:
-    branches: [main]
+    branches:
+      - main
 
 jobs:
   build:
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
new file mode 100644
index 0000000..3ad950b
--- /dev/null
+++ b/.github/workflows/publish.yml
@@ -0,0 +1,58 @@
+name: Publish
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - v*
+  pull_request:
+    branches:
+      - main
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      packages: write
+      attestations: write
+      id-token: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        id: push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+
+      - name: Generate artifact attestation
+        uses: actions/attest-build-provenance@v2
+        with:
+          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          subject-digest: ${{ steps.push.outputs.digest }}
+          push-to-registry: ${{ github.event_name != 'pull_request' }}
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..e591269
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,25 @@
+# syntax=docker/dockerfile:1
+
+ARG PYTHON_VERSION=3.13
+FROM python:${PYTHON_VERSION}-alpine
+
+# Prevents Python from writing pyc files.
+ENV PYTHONDONTWRITEBYTECODE=1
+
+# Keeps Python from buffering stdout and stderr to avoid situations where
+# the application crashes without emitting any logs due to buffering.
+ENV PYTHONUNBUFFERED=1
+
+WORKDIR /usr/src/app
+
+RUN pip install --no-cache-dir pipenv
+
+COPY Pipfile Pipfile.lock .
+
+RUN pipenv install --system --deploy
+
+COPY . .
+
+RUN crontab crontab
+
+CMD ["crond", "-f", "-l", "2"]
diff --git a/crontab b/crontab
new file mode 100644
index 0000000..c3d76f5
--- /dev/null
+++ b/crontab
@@ -0,0 +1 @@
+*/2 * * * * /usr/src/app/bin/sepicker >> /var/log/cron.log 2>&1