Required materials of White Line Trace are given below:

Component (Quantity)

1. Chasis (1)
2. BreadBoard (1)
3. IC7805 regulator (1)
4. LM324N comparator (1)
5. ULN2003 amplifier (1)
6. LDR (light sensors) (2)
7. Superbright LED (2)
8. Simple LED (as indicator) (2)
9. Potentiometer of 10K (2)
10.Four pin connector (2)
11.Battery of 9V with battery cap (2)
12.Carbon Resistance of 10K ohm (2)
13.Carbon Resistance of 100 ohm (4)
14.Connecting wires
15.Multimeter
16.Wire Cutter