I'm trying to control a 12V power supply with a MOSFET using PWM on the Raspberry Pi. The intention is to fade the 12V power which will be connected to a 12V LED strip (the LEDs will fade on and off).
I have my design configured as shown:
This is the MOSFET that I'm using: https://www.adafruit.com/product/355
I have a python loop running that fades the PWM from 100 to 0 at .5 Hz on pin 11. When configured as shown, the voltmeter reads correctly: the voltage fades between 12V and 0V, and back again. However, when I replace the volt meter with my strip LEDs, they don't light up.
What am I missing with my design? When don't the LEDs turn on if the voltmeter registers a voltage change?