Solar Tracker parts for mini servos

thingiverse

Create an Arduino solar tracker with mini servos, directing the gnomon towards the brightest light. Designed for Tower Pro MG90S Servos but compatible with others. The 3.150" tall, 1.100" square gnomon houses 4 LDRs (light-dependent resistors). Control 2-axis servos by LDR's light readings; shaded LDRs signal servo adjustments. Determine sun angle using servo positions and optionally utilize Arduino board with GPS or compass for precise location on an LCD screen. Efficient solar panel operation depends on following the sun at the correct angle, which can be controlled in real-time by the Arduino board. Custom code ensures stability by averaging LDR readings and limiting servo movement based on specified difference thresholds. Assemble the project with small screws, drilling holes for LDR leads and gnomon arm mounting. Connect LDR terminals and insulate wires under the gnomon using shrink tubing. A #4 screw secures the gnomon to the arm.