dom1of1/GRC2025-Optimus

Runner-up bot in Engineers League of Ghana Robotics Competition 2025 # OPTIMUS V2 — Ghana Robotics Competition 2025 (Smart City Builders Challenge) **MicroPython-powered robot designed for the Ghana Robotics Competition (Engineers League, Smart City Builders Challenge).** Built using the **Xplore Bot kit** and a **Raspberry Pi Pico**, OPTIMUS V2 combines autonomous bridge repair, Bluetooth manual operation, and 3D-printed attachments to complete city-building and cleanup tasks. --- ## Table of Contents * Overview * Challenge Context * Repository Structure * Robot Summary * Hardware Overview * Software Architecture * Quick Start (Flash & Run) * Bluetooth Commands * Behavior Summary * Autonomous Mode * Manual Mode * Mechanical Design * Calibration * Rebuilding OPTIMUS V2 * Documentation & Media * Credits --- ## Overview ### Challenge Context The **Smart City Builders Challenge** tasks participants to design robots addressing three real-world problems in sustainable cities: 1. **Fixing a Broken Bridge** – repairing road infrastructure before autonomous cars arrive. 2. **Building Essential Services** – constructing schools, hospitals, and workplaces using color-coded blocks. 3. **Cleaning the City** – collecting rubbish balls and disposing them in bins. Each match lasts **3 minutes**, beginning with a **30-second autonomous mode** (worth double points), followed by a **manual mode** (Bluetooth-controlled). Teams must score as many points as possible without external assistance. --- ## Repository Structure ``` ├── docs/ │ ├── Engineering_Notebook.pdf │ └── Game_Rules.pdf ├── models/ │ └── attachments/ │ ├── BAR.STL │ ├── clipper_left.STL │ ├── clipper_right.STL │ ├── GEAR 9.STL │ ├── holder.STL │ ├── Long rack.STL │ ├── Motor_Holder.STL │ ├── RACK.STL │ ├── ROUND.STL │ ├── slider_left.STL │ └── slider_right.STL ├── schemes/ │ └── wiring_diagram.png ├── src/ │ ├── main.py │ └── utils.py ├── videos/ │ └── GRC_Optimus_demo.mp4 ├── LICENSE ├── READ …