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2 changes: 2 additions & 0 deletions 51-rooftop-hvac-predictive-maintenance/README.md
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This reference application is intended to provide inspiration and help you get started quickly. It uses specific hardware choices that may not match your own implementation. Focus on the sections most relevant to your use case. If you'd like to discuss your project and whether it's a good fit for Blues, [feel free to reach out](https://blues.com/landing-pages/accelerators-contact-us/?accelerator=Rooftop%20HVAC%20Unit%20Predictive%20Maintenance%20Pack).

**Building with an AI assistant?** Point it at this accelerator's firmware — [firmware/rtu_predictive_maintenance/](firmware/rtu_predictive_maintenance/) — so it can learn how the device works and help you adapt it to your hardware.

</Note>

This project is a retrofit [downtime prevention](https://blues.com/downtime-prevention/) pack for commercial rooftop HVAC units. A handful of inexpensive sensors and a Blues [Notecard Cell+WiFi](https://shop.blues.com/products/notecard-cellular?utm_source=dev-blues&utm_medium=web&utm_campaign=store-link) turn an ordinary rooftop unit into a remotely-monitored, predictively-maintained asset — catching refrigerant loss, short-cycling, and clogged filters *before* the unit fails and a tenant loses cooling.
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2 changes: 2 additions & 0 deletions 52-vfd-pump-predictive-maintenance/README.md
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This reference application is intended to provide inspiration and help you get started quickly. It uses specific hardware choices that may not match your own implementation. Focus on the sections most relevant to your use case. If you'd like to discuss your project and whether it's a good fit for Blues, [feel free to reach out](https://blues.com/landing-pages/accelerators-contact-us/?accelerator=VFD-Driven%20Pump%20Predictive%20Maintenance%20via%20Modbus).

**Building with an AI assistant?** Point it at this accelerator's firmware — [firmware/vfd_pump_monitor/](firmware/vfd_pump_monitor/) — so it can learn how the device works and help you adapt it to your hardware.

</Note>

This project is a [downtime prevention](https://blues.com/downtime-prevention/) reference design that turns an industrial centrifugal pump into a predictively-maintained, remotely-monitored asset by reading what the pump's existing **VFD (variable frequency drive)** already knows about itself over **Modbus RTU**, on a real industrial **PLC** (programmable logic controller), with a cellular [Notecard](https://shop.blues.com/products/notecard-cellular?utm_source=dev-blues&utm_medium=web&utm_campaign=store-link) for the data uplink.
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2 changes: 2 additions & 0 deletions 53-municipal-wastewater-lift-station-monitor/README.md
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This reference application is intended to provide inspiration and help you get started quickly. It uses specific hardware choices that may not match your own implementation. Focus on the sections most relevant to your use case. If you'd like to discuss your project and whether it's a good fit for Blues, [feel free to reach out](https://blues.com/landing-pages/accelerators-contact-us/?accelerator=Municipal%20Wastewater%20Lift%20Station%20Monitor).

**Building with an AI assistant?** Point it at this accelerator's firmware — [firmware/lift_station_monitor/](firmware/lift_station_monitor/) — so it can learn how the device works and help you adapt it to your hardware.

</Note>

This project is a [downtime prevention](https://blues.com/downtime-prevention/) retrofit for municipal wastewater lift stations that catches pump failures, discharge obstructions, and high-water conditions before they become a sanitary overflow. A handful of sensors and a single [Notecard for Skylo](https://shop.blues.com/products/notecard-for-skylo?utm_source=dev-blues&utm_medium=web&utm_campaign=store-link) — one module that carries cellular, WiFi, and Skylo satellite radios and fails over between them automatically — transform a sealed concrete vault into a remotely-monitored station that delivers alerts to the on-call crew within minutes, not hours after a manual site visit. One SKU and one firmware image cover the entire fleet, from the station three blocks from city hall to the one at the edge of the service territory beyond any cell tower.
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This reference application is intended to provide inspiration and help you get started quickly. It uses specific hardware choices that may not match your own implementation. Focus on the sections most relevant to your use case. If you'd like to discuss your project and whether it's a good fit for Blues, [feel free to reach out](https://blues.com/landing-pages/accelerators-contact-us/?accelerator=Multi-Site%20Walk-In%20Cooler%20Energy%20%26%20Setpoint%20Monitor).

**Building with an AI assistant?** Point it at this accelerator's firmware — [firmware/cooler_monitor/](firmware/cooler_monitor/) — so it can learn how the device works and help you adapt it to your hardware.

</Note>

This project is a cellular [energy savings](https://blues.com/energy-savings/) reference design that gives corporate operations teams a live view into the temperature, compressor runtime, and door behavior of every walk-in cooler in their fleet, without touching a single franchisee or operator's WiFi network.
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2 changes: 2 additions & 0 deletions 55-demand-response-solar-battery-dispatcher/README.md
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This reference application is intended to provide inspiration and help you get started quickly. It uses specific hardware choices that may not match your own implementation. Focus on the sections most relevant to your use case. If you'd like to discuss your project and whether it's a good fit for Blues, [feel free to reach out](https://blues.com/landing-pages/accelerators-contact-us/?accelerator=Demand-Response%20Solar%20%2B%20Battery%20Dispatcher).

**Building with an AI assistant?** Point it at this accelerator's firmware — [firmware/solar_battery_dispatcher/](firmware/solar_battery_dispatcher/) — so it can learn how the device works and help you adapt it to your hardware.

</Note>

This project is an [energy savings](https://blues.com/energy-savings/) reference design that gives a commercial solar + battery installation an independent cellular control channel, so the asset owner can dispatch the battery to discharge during expensive peak-rate hours, charge during cheap overnight hours, and curtail grid export when the utility calls a demand-response (DR) event, without depending on the building's IT network or a vendor's proprietary cloud portal. The device reads live operating state from the inverter and the battery's management system (BMS) over the industrial bus they already share, and signals each one to enter the right mode at the right time, driven by a schedule or by live commands routed through the [Blues Notehub](https://blues.com/notehub/) cloud service.
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2 changes: 2 additions & 0 deletions 56-commercial-plug-load-after-hours-waste-dashboard/README.md
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This reference application is intended to provide inspiration and help you get started quickly. It uses specific hardware choices that may not match your own implementation. Focus on the sections most relevant to your use case. If you'd like to discuss your project and whether it's a good fit for Blues, [feel free to reach out](https://blues.com/landing-pages/accelerators-contact-us/?accelerator=Commercial%20Plug-Load%20%26%20After-Hours%20Waste%20Dashboard).

**Building with an AI assistant?** Point it at this accelerator's firmware — [firmware/plug_load_monitor/](firmware/plug_load_monitor/) — so it can learn how the device works and help you adapt it to your hardware.

</Note>

This project is a cellular-connected [energy savings](https://blues.com/energy-savings/) monitor that clips non-invasive CT (current transformer) clamps onto branch circuits in a commercial sub-panel, samples RMS current once a minute, and transmits hourly per-circuit profiles to the [Blues Notehub](https://blues.com/notehub/) cloud service, giving energy consultants a view into which circuits are burning money at 2 AM without ever touching the building's corporate network.
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2 changes: 2 additions & 0 deletions 57-propane-lpg-tank-fill-telemetry/README.md
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This reference application is intended to provide inspiration and help you get started quickly. It uses specific hardware choices that may not match your own implementation. Focus on the sections most relevant to your use case. If you'd like to discuss your project and whether it's a good fit for Blues, [feel free to reach out](https://blues.com/landing-pages/accelerators-contact-us/?accelerator=Propane%20%2F%20LPG%20Tank%20Fill%20Telemetry%20%E2%80%94%204%E2%80%9320%20mA%20Float-Transmitter%20Variant).

**Building with an AI assistant?** Point it at this accelerator's firmware — [firmware/propane_tank_telemetry/](firmware/propane_tank_telemetry/) — so it can learn how the device works and help you adapt it to your hardware.

</Note>

This project is a [truck roll reduction](https://blues.com/truck-roll-reduction/) reference design that gives propane dealers per-tank fill telemetry across their entire delivery territory, replacing fixed-schedule routes with demand-driven dispatch and projecting days-until-empty for every tank in the fleet. A level sensor at the tank's existing gauge port and a temperature probe on the tank shell turn each tank into a self-reporting asset; a single [Notecard for Skylo](https://shop.blues.com/products/notecard-for-skylo?utm_source=dev-blues&utm_medium=web&utm_campaign=store-link) (one module carrying cellular, WiFi, and Skylo satellite radios that fails over between them automatically) carries the data from the tank three minutes outside town just as readily as from the remote mountain cabin beyond any cell tower. One SKU and one firmware image cover every site type in the territory.
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2 changes: 2 additions & 0 deletions 58-commercial-grease-interceptor-level-monitor/README.md
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This reference application is intended to provide inspiration and help you get started quickly. It uses specific hardware choices that may not match your own implementation. Focus on the sections most relevant to your use case. If you'd like to discuss your project and whether it's a good fit for Blues, [feel free to reach out](https://blues.com/landing-pages/accelerators-contact-us/?accelerator=Hydromechanical%20%28HGI%29%20and%20Batch-Collection%20Grease%20Interceptor%20Level%20Monitor).

**Building with an AI assistant?** Point it at this accelerator's firmware — [firmware/grease_interceptor_monitor/](firmware/grease_interceptor_monitor/) — so it can learn how the device works and help you adapt it to your hardware.

</Note>

This project is a [truck-roll reduction](https://blues.com/truck-roll-reduction/) device for pumping providers who service **commercial grease interceptors**. A waterproof ultrasonic distance sensor installed in the access cover reports fill level over cellular every 15 minutes; when the level reaches a threshold, an alert dispatches immediately to the [Blues Notehub](https://blues.com/notehub/) cloud service. Trucks are routed on actual condition, not a fixed calendar.
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2 changes: 2 additions & 0 deletions 60-lone-worker-panic-fall-detection-beacon/README.md
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This reference application is intended to provide inspiration and help you get started quickly. It uses specific hardware choices that may not match your own implementation. Focus on the sections most relevant to your use case. If you'd like to discuss your project and whether it's a good fit for Blues, [feel free to reach out](https://blues.com/landing-pages/accelerators-contact-us/?accelerator=Lone%20Worker%20Panic%20%26%20Fall%20Detection%20Safety%20Beacon).

**Building with an AI assistant?** Point it at this accelerator's firmware — [firmware/lone_worker_beacon/](firmware/lone_worker_beacon/) — so it can learn how the device works and help you adapt it to your hardware.

</Note>

This project is a wearable [safety assurance](https://blues.com/safety-assurance/) device for utility linemen, oilfield pumpers, field service technicians, and solo contractors. A single [Notecard for Skylo](https://shop.blues.com/products/notecard-for-skylo?utm_source=dev-blues&utm_medium=web&utm_campaign=store-link) carries cellular, WiFi, and Skylo NTN satellite radios on one module and fails over between them automatically. It turns a belt-clip enclosure into a cellular-first, satellite-backed distress beacon — detecting falls and accepting an explicit panic-button press — that can reach a dispatcher from the middle of nowhere, exactly where lone-worker incidents happen.
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This reference application is intended to provide inspiration and help you get started quickly. It uses specific hardware choices that may not match your own implementation. Focus on the sections most relevant to your use case. If you'd like to discuss your project and whether it's a good fit for Blues, [feel free to reach out](https://blues.com/landing-pages/accelerators-contact-us/?accelerator=Pharmacy%2FLab%20Cold-Storage%20Audit%20Monitor).

**Building with an AI assistant?** Point it at this accelerator's firmware — [firmware/cold_storage_audit_monitor/](firmware/cold_storage_audit_monitor/) — so it can learn how the device works and help you adapt it to your hardware.

</Note>

This project is a [safety assurance](https://blues.com/safety-assurance/) reference design that gives pharmacies, clinical laboratories, and vaccine depots a continuous, automatically-timestamped temperature record for every refrigerator and freezer in their compliance scope, delivered over a cellular data path that bypasses the facility's regulated network entirely. Immediate alerts fire the moment the temperature strays outside its configured range or a door is left open too long.
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This reference application is intended to provide inspiration and help you get started quickly. It uses specific hardware choices that may not match your own implementation. Focus on the sections most relevant to your use case. If you'd like to discuss your project and whether it's a good fit for Blues, [feel free to reach out](https://blues.com/landing-pages/accelerators-contact-us/?accelerator=Construction%20Site%20Environmental%20%26%20Noise%20Exposure%20Monitor).

**Building with an AI assistant?** Point it at this accelerator's firmware — [firmware/construction_env_monitor/](firmware/construction_env_monitor/) — so it can learn how the device works and help you adapt it to your hardware.

</Note>

This project is a [safety assurance](https://blues.com/safety-assurance/) reference design that turns a construction site into a continuously monitored, GPS-stamped area monitoring point — tracking PM2.5, PM10, and dB(A) sound levels in real time without any site WiFi, power outlets, or IT coordination.
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This reference application is intended to provide inspiration and help you get started quickly. It uses specific hardware choices that may not match your own implementation. Focus on the sections most relevant to your use case. If you'd like to discuss your project and whether it's a good fit for Blues, [feel free to reach out](https://blues.com/landing-pages/accelerators-contact-us/?accelerator=Construction%20Equipment%20Anti-Theft%20Tracker%20with%20Immobilizer).

**Building with an AI assistant?** Point it at this accelerator's firmware — [firmware/construction_equipment_anti_theft/](firmware/construction_equipment_anti_theft/) — so it can learn how the device works and help you adapt it to your hardware.

</Note>

This project is a [loss prevention](https://blues.com/loss-prevention/) reference design for construction equipment fleets. The system turns any skid steer, light tower, portable compressor, or generator into a hardened asset that reports its own location continuously, fires alerts on geofence breach and after-hours motion, and accepts a remotely-staged ignition immobilizer command. It runs on a self-contained cellular-plus-satellite link with a small solar-trickled battery, requiring no job-site WiFi or IT coordination.
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2 changes: 2 additions & 0 deletions 65-off-grid-livestock-water-tank-monitor/README.md
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This reference application is intended to provide inspiration and help you get started quickly. It uses specific hardware choices that may not match your own implementation. Focus on the sections most relevant to your use case. If you'd like to discuss your project and whether it's a good fit for Blues, [feel free to reach out](https://blues.com/landing-pages/accelerators-contact-us/?accelerator=Off-Grid%20Livestock%20Water%20Tank%20Monitor).

**Building with an AI assistant?** Point it at this accelerator's firmware — [firmware/livestock_water_tank_monitor/](firmware/livestock_water_tank_monitor/) — so it can learn how the device works and help you adapt it to your hardware.

</Note>

This project is a solar-powered [remote monitoring](https://blues.com/solutions-remote-monitoring/) system for off-grid livestock water tanks. It tells a rancher when a stock tank is going dry — without anyone driving the pasture roads to check. The device measures the water level, the pump's current draw, and the solar system's own battery voltage, then reports all three to a phone or dispatch system over cellular wherever a tower is reachable and over satellite via [Skylo](https://www.skylo.tech/)'s non-terrestrial network (NTN) where it isn't. The radio stays off between an immediate alert and a 4-hour summary, so the device runs indefinitely on a modest solar panel and a single battery.
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2 changes: 2 additions & 0 deletions 66-remote-apiary-hive-health-monitor/README.md
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This reference application is intended to provide inspiration and help you get started quickly. It uses specific hardware choices that may not match your own implementation. Focus on the sections most relevant to your use case. If you'd like to discuss your project and whether it's a good fit for Blues, [feel free to reach out](https://blues.com/landing-pages/accelerators-contact-us/?accelerator=Remote%20Apiary%20Hive%20Health%20Monitor).

**Building with an AI assistant?** Point it at this accelerator's firmware — [firmware/apiary_hive_monitor/](firmware/apiary_hive_monitor/) — so it can learn how the device works and help you adapt it to your hardware.

</Note>

This project is a solar-powered hive monitor that turns each hive into a [remotely-monitored asset](https://blues.com/solutions-remote-monitoring/) — tracking hive weight and brood-box climate every 15 minutes, capturing a brief acoustic snapshot of the colony once per day, and reporting it all without grid power and without a truck roll every time the data looks wrong. A single [Notecard for Skylo](https://shop.blues.com/products/notecard-for-skylo?utm_source=dev-blues&utm_medium=web&utm_campaign=store-link) carries cellular, WiFi, and Skylo satellite radios on one module and fails over between them automatically, so the same hardware and firmware reach the [Blues Notehub](https://blues.com/notehub/) cloud service from an orchard with cell coverage or a meadow beyond any tower.
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2 changes: 2 additions & 0 deletions 68-cnc-machine-spindle-load-cycle-time-tracker/README.md
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This reference application is intended to provide inspiration and help you get started quickly. It uses specific hardware choices that may not match your own implementation. Focus on the sections most relevant to your use case. If you'd like to discuss your project and whether it's a good fit for Blues, [feel free to reach out](https://blues.com/landing-pages/accelerators-contact-us/?accelerator=CNC%20Machine%20Spindle%20Load%20%26%20Cycle%20Time%20Tracker).

**Building with an AI assistant?** Point it at this accelerator's firmware — [firmware/cnc_spindle_tracker/](firmware/cnc_spindle_tracker/) — so it can learn how the device works and help you adapt it to your hardware.

</Note>

This project is an [industrial equipment monitoring](https://blues.com/industrial-equipment-monitoring/) reference design for machine-tool OEMs who want continuous visibility into how their installed base is actually being used. The device sits on the customer's CNC machine and reports the operational signals an OEM cares about: how hard the spindle is working, how many cycles ran each hour, how often the machine sits idle, which operator is logged in, and what alarm codes the controller raises. All of it travels back to the OEM's cloud over cellular, without ever touching the customer's plant network. Routine telemetry batches into hourly summaries; alarms and operator-ID changes arrive immediately. The hardware is an Arduino OPTA RS485 with a Blues Wireless for OPTA cellular expansion (see §4 for the BOM); the data source is any CNC controller that exposes telemetry over **Modbus TCP**.
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