Driving A Motor
In this circuit you have,
- 470 Ohm Resistor
- NPN transistor
- Diode 1N4148
We'll turn the motor on when the A button is pressed, otherwise we'll switch it off.
from microbit import * while True: if button_a.is_pressed(): pin0.write_digital(1) else: pin0.write_digital(0) sleep(50)
Stick to the single motor and go easy when using this much power from the micro:bit. Make a spinning circle out of card and place it on the axle of the motor. Use this in a game, as a pretty colour wheel or as a nice little fan.