2 min readhackster
Publish DHT11 Data to a Modbus TCP Server with NodeMCU
Turn a NodeMCU ESP8266 into a Modbus TCP server that exposes DHT11 temperature and humidity readings. Arduino IDE code plus Modscan client testing.
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# Modbus TCP
6 posts
3 min readhackster
XIAO ESP32C3: Publish DHT11 to Modbus TCP, Read in Client
Publish DHT11 temperature and humidity from a XIAO ESP32C3 to its built-in Modbus TCP server, then read the registers in a Modbus client. Full sketch.
2 min readhackster
Create a Modbus TCP/IP Server with the XIAO ESP32C3
Expose holding registers on a Seeed Studio XIAO ESP32C3 by building a Modbus TCP/IP server in the Arduino IDE. Full sketch and client verification.
3 min readhackster
Control NodeMCU ESP8266 Pins over Modbus TCP
Switch the digital pins of a NodeMCU ESP8266 on and off through Modbus TCP. Arduino sketch with a holding-register API plus Modscan testing steps.
2 min readhackster
Create a Modbus TCP/IP Server with NodeMCU ESP8266
Build a Modbus TCP/IP server on a NodeMCU ESP8266 with the Arduino IDE and the ModbusIP_ESP8266 library. Register setup, code and client testing.
2 min readhackster
XIAO ESP32C3 as a Modbus TCP Client: Read Holding Registers
Read holding registers from a Modbus TCP server with a Seeed Studio XIAO ESP32C3 acting as the client. Arduino sketch, register maps and client testing.