Table 1. A bill of materials for constructing the tracker system.

Part	Cost
A) Arduino Uno (R3)	$23.00
B) Hall Effect Magnetic Sensors (A3144)	$6.00
C) Small Magnets (10 mm x 3 mm)	$14.00
D) Non-toxic PVA Glue	$8.26
E) Long Breadboard Jumper Wires	$9.00
F) Breadboard	$9.00
G) 3D Printing Filament (PLA, 80g)	$2.40
Total:	$71.66