I will develop esp32 modbus rtu rs485 tcp industrial iot firmware

Are you looking for reliable ESP32 Modbus firmware for industrial automation, PLC communication, or an IoT product?

I will develop, integrate, and troubleshoot ESP32 Modbus RTU, Modbus TCP, and RS485 communication using ESP-IDF or Arduino. I can build new firmware or fix communication problems in your existing ESP32 project.

My services include:

• ESP32 programming and firmware development
• Modbus RTU communication over RS485
• Modbus TCP over Wi-Fi or Ethernet
• Modbus master/client and slave/server
• PLC, HMI, sensor, energy meter, and controller integration
• Holding registers, input registers, coils, and discrete inputs
• Custom register maps and control logic
• UART and RS485 transceiver configuration
• CRC, timeout, addressing, and communication debugging
• Industrial IoT, monitoring, and automation systems
• Tested source code and technical documentation

I have practical experience with ESP32, FreeRTOS, Modbus RTU/TCP, RS485, MQTT, Wi-Fi, BLE, industrial sensors, displays, and embedded control systems.

Please message me before ordering with your device model, Modbus register map, connection type, and required functions.