This is an easy tutorial showing how you can control the brightness of an LED or adjust the speed of a DC fan using Arduino Board, a small BC547 transistor and a potentiometer. In my example the whole ...
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 have heard it said that PWM fans are controllable by software. I understand the PWM connectors are the 4-pin But speedfan was around pre PWM wasn't it? So for 3 pin fan connectors. Could it control ...