Quantity   Component name
3 × Cheapy laser diodes 5V powered
1 × Raspberry Pi Zero W Not yet in my collection, but I will do testing on Pi 3
1 × Pi Noir camera module What I have, or one with a similar form factor
1 × 3D printed housing designed specifically around components I have
1 × 18650 LiFePo battery and boost kit https://hackaday.io/project/9461-lifepo4weredpi from 3.7V up to 5V