ACircuit Diagram to Interface LED MAtrix display with Arduino Now that we have completely understood how a MAX7219 LED Dot Matrix Display Module works, we can connect all the required wires to the ...

A contactless RPM (revolutions per minute) meter using ESP8266 and line tracking sensor - maarten-pennings/mRPM ...

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 ...