Key Takeaway: Pairing an STM32 for deterministic sensor aggregation with an ESP32 for secure wireless uplink gives you an industrial-grade IoT gateway that is more robust, cheaper to maintain, and…
Key Takeaway: RS485 is the industrial wiring standard that lets microcontrollers talk reliably over long distances in noisy factory environments, and Modbus RTU is the simple master-slave protocol that runs…
Key Takeaway: The ESP32 microcontroller, costing under $10, can replace traditional PLCs costing $500+ for many industrial automation tasks by running open-source ladder logic runtimes, Modbus RTU/TCP communication, and MQTT-based…