diff --git a/.github/workflows/codespell.yml b/.github/workflows/codespell.yml
new file mode 100644
index 0000000..f39b305
--- /dev/null
+++ b/.github/workflows/codespell.yml
@@ -0,0 +1,15 @@
+# GitHub Action to automate the identification of common misspellings in text files.
+# https://github.com/codespell-project/actions-codespell
+# https://github.com/codespell-project/codespell
+name: codespell
+on: [push, pull_request]
+jobs:
+  codespell:
+    name: Check for spelling errors
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: codespell-project/actions-codespell@master
+        with:
+          check_filenames: true
+          skip: ./.git
diff --git a/src/DMXSerial2.cpp b/src/DMXSerial2.cpp
index 54934ff..176fab7 100644
--- a/src/DMXSerial2.cpp
+++ b/src/DMXSerial2.cpp
@@ -350,7 +350,7 @@ void DMXSerialClass2::init(struct RDMINIT *initData, RDMCallbackFunction func, R
   for (unsigned int i = 0; i < sizeof(eeprom); i++)
     ((byte *)(&eeprom))[i] = EEPROM.read(i);
 
-  // check if the EEEPROM values are from the RDM library
+  // check if the EEPROM values are from the RDM library
   if ((eeprom.sig1 == 0x6D) && (eeprom.sig2 == 0x68)) {
     _startAddress = eeprom.startAddress;
     strcpy (deviceLabel, eeprom.deviceLabel);
@@ -420,7 +420,7 @@ void DMXSerialClass2::write(int channel, uint8_t value)
   if (channel < 1) channel = 1;
   if (channel > DMXSERIAL_MAX) channel = DMXSERIAL_MAX;
 
-  // The next 2 comparisations have no effect because uint8_t covers exact this range. -> removed
+  // The next 2 comparisons have no effect because uint8_t covers exact this range. -> removed
   // When changing DMXSERIAL_MAX_SLOT_VALUE or _dmxData space allocation, check again.
   // if (value < DMXSERIAL_MIN_SLOT_VALUE) value = DMXSERIAL_MIN_SLOT_VALUE;
   // if (value > DMXSERIAL_MAX_SLOT_VALUE) value = DMXSERIAL_MAX_SLOT_VALUE;