However, these two areas are where the Arduino Mega shines. It's built with 256 ... One is using an analog input like a potentiometer. In this case, the analogWrite() value is dependent on the ...

With a little help from an Arduino mega, however, [EmmaSong] was able ... It appears he uses a potentiometer for a rough regulation of the current going to the coils, doing the fine tuning in ...

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 ...

The Arduino Mega's PWM pins are digital output pins ... One is using an analog input like a potentiometer. In this case, the analogWrite() value is dependent on the value read from the input.