A Youtube channel named UncleStem has taken DIY robotics to a completely new level by building a giant obstacle-avoiding robot powered by a fully functional oversized Arduino Uno. The project recreates a classic Arduino obstacle avoidance robot at seven times the original size while still maintaining real working electronics inside. From giant DC motors and oversized jumper wires to a massive ultrasonic sensor and large-scale L298N motor driver, every component was carefully redesigned using custom 3D-printed parts to preserve the look of real electronic hardware. Hidden inside these oversized replicas are actual electronic modules, allowing the giant robot to function exactly like a standard Arduino robot project.
The giant Arduino robot operates using familiar beginner robotics concepts such as ultrasonic obstacle detection, differential steering, servo motor scanning, and DC motor control. To recreate the oversized motor system, the creator used powerful 24V geared motors commonly found in electric ride-on vehicles while maintaining the appearance of standard hobby motors used in Arduino obstacle-avoiding robots. Even the ultrasonic sensor was rebuilt as a large functional replica with a hidden real sensor module placed inside for accurate distance measurement and obstacle detection. The oversized Arduino Uno itself secretly uses a compact Arduino Nano as the main microcontroller, proving how tiny embedded systems can efficiently control large-scale robotics projects.
After assembling the one-meter-wide robot chassis, finally uploaded the Arduino code and tested the system. Surprisingly, the giant Arduino obstacle avoidance robot successfully navigated around obstacles and moved just like a traditional Arduino robot using an ultrasonic sensor.
