Quantity   Component name
2 × 20mm diam electrical PVC pipe (2m long) cost 0.9$ per 2m. used for the frame
6 × 6 mm bolts 30mm long reused from scrap... used for the frame
3 × 608Z ball bearing used for solar tracker. 0.5$ each
2 × easystepper driver used for solar tracker electronics. 4.7$ each
1 × DC DC 360 step down converter used for solar tracker electronincs. 0.5$
2 × Wemos lolin 32 lite ESP32 breadboard used in solar Tracker electronics and MPPT controller. 4$ each
2 × Nema17 stepper motor used for solar tracker. 8.4$ each
1 × lazy Susan 155mm turn table ball bearing used for solar tracker. 7$
1 × DC 300W 20A CC CV Constant Current Adjustable Step Down Converter Voltage Buck Current Source Module used for MPPT controller. 6.5$
1 × ACS712 5A 20A Range Hall Current Sensor Module used for MPPT controller. 2.5 $
1 × 1m 5mm lead srew used for solar Tracker. .8$