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Computer controlled disco and theatre light project

Par 16 (low voltage) disco / theatre light I have created a computer controlled disco and theatre light project. Originally this started out as an Arduino project, but I then updated it to use a Raspberry Pi so that it could be controlled from a computer instead.

The project uses low voltage (12v) Par16 cans to reduce the risks associated with mains voltage electricity. In particular this needs to be for LED bulbs which use much less power than halogen bulbs.

Schematic digram of disco light circuit

This is the circuit diagram of the full circuit including the Raspberry Pi. I've also added an inline fuse in case of a problem with the circuit.

Disco light circuit for Raspberry Pi and MOSFET switches
Click for a larger image


I have used this at a disco for my son's birthday and gave a demo at the Raspberry Pi 4th birthday party.

More details are available from the slides from my demonstration

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