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 ...

Code developed for FrontiEV electric conversion. Relays driven by Arduino control 80amp relays for each heating element in the VW 12v heater (1K0963235F). Potentiometer has 5V and GND from Arduino ...

Microcontrollers like Arduino are designed to control small loads, such as LEDs or sensors, directly from their output pins. However, these pins can only supply a limited amount of current (typically ...