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 ...

I just received my RC522 RFID reader and made this simple Arduino access control system that uses the reader ... is the Arduino pin where we connect the button that is used the reset the alarm. The ...

Whenever a valid key is swiped, the Arduino triggers a relay which ... to use it to control his garage door. The system also has a few manual controls. First is the reset button.

Once paired, these modules relay serial information ... it extremely difficult to use. Arduino Bluetooth RC Car by Andi.Co: Specifically designed for vehicle control, this is a capable app. You can’t ...

[Reza’s] methodical investigation of this remote controlled outlet let him patch in with an Arduino using ... into the remote control itself. That used some type of weird button scanning ...