Simply, it’s an Arduino library for communicating with Modbus slaves over RS232/485 via RTU (remote terminal unit) protocol. In conclusion, the Modbus 2-channel 5V relay module is a very useful device ...

you can download from Arduino Library Manager or directlly download from this repository. Connect the 8-channel Solid state relay v1.0 ... 1010101 Turn 2 4 6 8 channels on, State: 10101010 Turn off ...

So, you can easily make this home automation project at home just by using an ESP32 and relay module ... and the LDR is connected with GPIO D34 of the ESP32. I have used the INPUT_PULLUP function in ...

This project describes how to make the alarm clock radio in Arduino. The main feature ... it by changing the code a bit. There were 2 Relay modules Used in this project, those are the Single channel ...

Seeed Studio has recently launched a 2-channel Wi-Fi AC relay built around the XIAO ESP32C3 WiFI and Bluetooth module. The device is a simple WiFi relay module that can control two independent ...