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 ...

Keypad pin 3 to Arduino digital 2 //C1 Keypad pin 4 to Arduino digital 8 //R4 Keypad pin 5 to Arduino digital 4 //C3 Keypad pin 6 to Arduino digital 7 //R3 Keypad pin 7 to Arduino digital 6 //R2 Since ...

We’ve featured loads of IR Arduino projects and they are all exciting and unique. The projects spring from a specific need or problem where a custom infrared remote control is the solution. [… ...