Quantity   Component name
16 × Laser module, < 5mW, 4.5 Volts https://www.aliexpress.com/item/10pcs-lot-4-5V-laser-head-Laser-module-laser-tube-laser-diode-Plastic-gyro-module-Red/32512088407.html
16 × Resistor, 27ohm (or depending on lasers) This is if using 4.5V/20mA lasers
16 × LDR, GL5528, Photoresistor https://www.aliexpress.com/item/20Pcs-Photo-Light-Sensitive-Resistor-Photoresistor-5528-GL5528/1852500725.html
16 × Resistor, 10Kohm
1 × Ribbon cable
1 × Copper tape, 5mm wide
1 × Teensy 3.2
4 × Potentiometer, 10Kohm
2 × Switch, OFF/ON, one pole
1 × DIN 5-PIN female 180-deg (optional)
2 × Resistor, 47ohm (optional)
1 × Sugru For aligning and fixating the laser modules