In this quick Arduino tutorial I will explain how you can control a relay using the Arduino Board, one 1K and one 10K resistors, 1 BC547 transistor, one 6V or 12V relay, one 1N4007 diode and a 12V fan ...

This is the companion code for the oorail Tech Tuesday Episode #3 video. In this video we walk you through using a 16-channel 12V DC relay board to power Peco PL-11 point motors. You can find the ...

Arduino sketch for cheap arduino + Ethernet shield + relay board to be controlled via TCP Currently the arduino sketch broadcasts its IP address every 10s on UDP port 8981.

Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — either via Bluetooth or Wi-Fi.

Fig. 1: Circuit diagram of the touchless switchboard The microcontroller in the Arduino Uno board receives the switching signals from the sensors and the program code sends the signals to the ...

Hobbyists, electronic enthusiasts and makers may be interested in a new 4 channel relay board aptly named the RelayFi. The 4 channel smart relay board is powered by a ESP32 WROOM providing the ...