GitHub - emelianov/modbus-esp8266: Most complete Modbus library for Arduino. A library that allows your Arduino board to communicate via Modbus protocol, acting as a master, slave or both. Supports network transport ( Modbus
![Esp-32 PCBA Development Board Wireless WiFi Communication Module 4ai/4di/4do RTU - China WiFi to Serial Module and Data Transmission Terminal Esp-32 PCBA Development Board Wireless WiFi Communication Module 4ai/4di/4do RTU - China WiFi to Serial Module and Data Transmission Terminal](https://image.made-in-china.com/226f3j00EeAHTlOCZJUY/Esp-32-PCBA-Development-Board-Wireless-WiFi-Communication-Module-4ai-4di-4do-RTU.jpg)
Esp-32 PCBA Development Board Wireless WiFi Communication Module 4ai/4di/4do RTU - China WiFi to Serial Module and Data Transmission Terminal
![Basic Test Modbus RTU (Master) RS485 with ESP32 + XY-K485 + PZEM-016 without libraries: PDAControl - YouTube Basic Test Modbus RTU (Master) RS485 with ESP32 + XY-K485 + PZEM-016 without libraries: PDAControl - YouTube](https://i.ytimg.com/vi/FwKbfq1WYSM/maxresdefault.jpg)