Hugging Face LeRobot Worldwide Hackathon Winner · 2025

Circuit Robot

Robot arm that assembles live electrical circuits on its own.

SO-ARM101 robotic arm positioned over an electrical circuit assembly bench

Connecting live electrical circuits is routine work that regularly injures people. Circuit Robot is an open-hardware answer: an SO-ARM101 arm that sees a workbench, recognises the components on it, and assembles a working circuit without a hand in the loop.

The pipeline is vision-first. A camera feeds a detector that localises components and reports their pose; those detections become grasp targets; the controller sequences the pick, place and connect actions that bring the circuit to life. The arm picks up a power cell, connects the circuit and activates the load.

Built with Team Electrify-141 and awarded a winning place in the Hugging Face LeRobot Worldwide Hackathon, 2025.

System diagram of the Circuit Robot perception and control loop

Gallery

Step one, the arm identifies and picks up the power cell

Step two, the arm positions the cell to connect the circuit

Step three, the circuit closes and the load activates