Quantity   Component name
1 × Arduino Nano I use Lafvin Nano v3.0
1 × Laser diode KY-008 Laser Transmitter Module
1 × Velcro tape
1 × Plywood, hardwire, screws, adhesives, etc
1 × Photoresistor 2-wire, i.e. GL5539 LDR
1 × Nominal resistor for potentiometer 2k Ohms
1 × Active Buzzer 2-wire, i.e. LTE12
1 × LED resistor 330 Ohms
1 × RGB LED 4-wire, i.e. 276-0028
1 × Perfboard 30mm x 70mm
1 × Battery pack
1 × Wires