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Close-up of a DIY autonomous solar car with exposed electronics, solar panel, and ultrasonic sensor, on a grey surface.

Close-up of a DIY autonomous solar car with exposed electronics, solar panel, and ultrasonic sensor, on a grey surface.

A small DIY autonomous programmable solar car for a school STEAM competition. The chassis is intricately designed and laser-cut from 3mm plywood, showing clean dark edges. The vehicle is extremely compact, strictly fitting within 10x7x7 cm dimensions. On top, it features a rectangular 6V solar panel (90x60mm) mounted at a fixed inclination between 25 and 35 degrees. The design integrates: an Arduino Nano, 2 small DC motors, a mini L298N H-bridge motor driver, a TP4056 charging module, and a cylindrical 18650 rechargeable lithium battery. At the very front, a dual-eye ultrasonic sensor is mounted very low, between 1 and 2cm above the ground. Neat internal wiring connects all parts. High detail, technical educational project aesthetic, macro photography style, bright natural light. Ver mais