ELECTRONICS & EMBEDDED
Dual-Axis Solar Tracker Demo
Build a small solar-panel model that follows the brightest light direction using LDR pairs.
LevelCollege / Intermediate
Duration3 Weeks
Components₹2,000–₹4,000 CodingMedium
Project overview
Build a small solar-panel model that follows the brightest light direction using LDR pairs.
Build a small solar-panel model that follows the brightest light direction using LDR pairs.
Components / materials required
✓Arduino
✓4 LDRs
✓2 servo motors
✓Mini solar panel
✓Frame
✓Resistors
What the project demonstrates
✓Horizontal/vertical tracking
✓Light comparison
✓Manual home position
Suggested build plan
01
Sensor array
Arrange LDR quadrants.
02
Servo mount
Build two-axis mechanism.
03
Control logic
Move toward light difference.
04
Efficiency demo
Compare fixed vs tracking output conceptually.
Learning outcomes
✓Build feedback control
✓Use differential light sensing
✓Coordinate two servos
✓Explain renewable-energy optimisation