This project combines two Arduino Uno boards: one as a master and the other as a slave. The master Arduino handles the LCD display and temperature monitoring using a DHT22 sensor. The slave Arduino ...

This project combines two Arduino Uno boards: one as a master and the other as a slave. The master Arduino handles the LCD display and temperature monitoring using a DHT22 sensor. The slave Arduino ...

Arduino Code for Interfacing MAX7219 LED Matrix Module with Arduino The code required to interface the SIM800L with Arduino is very simple and easy to understand.