If you want a motor to rotate by a fixed amount, you're best off using a stepper motor. Loads of info here: http://www.espruino.com/Stepper+Motors
You could give a standard DC motor a small pulse of voltage to make it rotate but it wouldn't be possible to accurately rotate it by the same amount each time
Hi, I would like to control a DC rotation motor. The idea is to connect it to the puck.js or mdbt Board and by pressing a button, it should rotate by 5 degree (for example).
Is this possible and how would you do this?