Building an Industrial HMI and Edge Controller on STM32 with FreeRTOS and Modbus TCP
Building an Industrial HMI and Edge Controller on STM32 with FreeRTOS and Modbus TCP Industrial control demos are often judged by the screen. The mo…
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Device Tree Ownership Is Moving Up Into Firmware
On most embedded Linux products the kernel carries the description of the board. Under Arm's SystemReady Devicetree band it does not: the platform f…
Thermoelectric Energy Harvesting for Batteryless IoT Sensors
Industrial motors continuously reject energy as heat. Under the right conditions, a small part of that heat can power the sensor used to monitor the…
Most Embedded CI Stops One Step Too Early
Software teams have spent years making CI feel normal. A pull request builds automatically. Unit tests run automatically. Static analysis, linting,…
Secure BLE OTA Firmware Updates on nRF5340: Architecture Notes
Firmware updates are one of the places where an embedded prototype either becomes maintainable or becomes expensive to support. The hard part is not…
Firmware Black Box: diagnosing embedded resets in the field
A device that resets in the field is not always the hardest problem. The harder problem is a device that resets, comes back online, and leaves no ev…