Bill of Materials

1. Breadboard * 1

2. Particle Photon * 1

3. Speaker * 1

4. DFPlayer * 1

5. IR breakbeam sensor(pair) * 1

5. Wires

6. Laser-Cut wooden plywood boards (12” by 12”) * 3

7. Plastic jar * 1

8. 3 x 3 post-it

9. Pen

10. Black paint