GitHub - birdtechstep/modbus-esp: A library that allows your ESP8266/ESP32 to communicate via Modbus protocol, acting as a master, slave or both. Supports IP via wireless network (Modbus IP) and RTU via Serial
ESP8266-Modbus-RTU-Master/ModbusMaster232.h at master · Trialcommand/ESP8266 -Modbus-RTU-Master · GitHub
![2.4G TTL RS232 RS485 TYPE C USB UART Transceiver For Arduino For UNO Wifi NodeMCU ESP8266 PC Printer Modbus RTU PLC Relay| | - AliExpress 2.4G TTL RS232 RS485 TYPE C USB UART Transceiver For Arduino For UNO Wifi NodeMCU ESP8266 PC Printer Modbus RTU PLC Relay| | - AliExpress](https://ae01.alicdn.com/kf/S9ada59087d60463d8e1984f6a7a512b0P/2-4G-TTL-RS232-RS485-TYPE-C-USB-UART-Transceiver-For-Arduino-For-UNO-Wifi-NodeMCU.jpg)
2.4G TTL RS232 RS485 TYPE C USB UART Transceiver For Arduino For UNO Wifi NodeMCU ESP8266 PC Printer Modbus RTU PLC Relay| | - AliExpress
![Online Monitoring for Digital Power Meter (Model YG889E-3SY) through Modbus RTU RS485 using Blynk and NodeMCU – A blog about DIY solar and arduino projects Online Monitoring for Digital Power Meter (Model YG889E-3SY) through Modbus RTU RS485 using Blynk and NodeMCU – A blog about DIY solar and arduino projects](https://i1.wp.com/solarduino.com/wp-content/uploads/2020/01/rs485.png?resize=960%2C539&ssl=1)