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Users send position commands from a custom Android app, and the stage responds by precisely actuating two axes of motion. Designed as part of ME6102 (Design of Mechatronic Systems) at IIT Bombay.\n\n\u003e Developed by [Aaron John Sabu](https://github.com/aaronjs99) and [Radhik Rammohan](https://github.com/radhikrammohan) in 2019.\n\n## Features\n\n- Wireless XY motion via Bluetooth\n- ESP32-based control firmware\n- Android app built with MIT App Inventor\n- Stepper motor drivers with directional control\n- Perfboard prototype with full schematic (Fritzing)\n- Demo videos of full-stage operation\n\n## Directory Structure\n\n```\n.\n├── app/               # Android app build + BLE extension\n│   ├── controller.aia\n│   ├── controller_API_26.apk\n│   ├── controller_API_28.apk\n│   └── ble_extension/\n│       └── edu.mit.appinventor.ble.aix\n│\n├── firmware/          # ESP32 firmware (Arduino-style)\n│   └── main.ino\n│\n├── hardware/          # Circuit and mechanical design\n│   ├── board/\n│   │   └── board.fzz\n│   ├── flowchart/\n│   │   └── flowchart.rap\n│   └── images/\n│       ├── electrical.jpg\n│       └── mechanical.jpg\n│\n├── results/           # Demos of system in action\n│   └── demos/\n│       ├── final_demo.mp4\n│       └── stepper_motors.mp4\n│\n├── LICENSE\n└── README.md\n```\n\n## Demo\n\nWatch demo videos in [`results/demos`](results/demos).\n\n## Hardware Overview\n\n- **Microcontroller**: ESP32 Dev Module \n- **Motor Drivers**: A4988 / DRV8825 \n- **Motors**: Bipolar Stepper Motors (e.g. NEMA 17) \n- **Power**: 12V DC Supply \n- **Control**: App Inventor BLE interface \n- **Mechanical**: Custom-built linear motion guides\n\n## Installation\n\n### 1. Flash Firmware\n\nOpen `firmware/main.ino` in the Arduino IDE or PlatformIO. Select `ESP32 Dev Module`, and upload to your board.\n\n### 2. Install Android App\n\n- Option 1: Import `app/controller.aia` into [MIT App Inventor](https://appinventor.mit.edu/)\n- Option 2: Install APK directly from `app/controller_API_26.apk` or `app/controller_API_28.apk` depending on your Android version\n\n## Authors\n\n- **Aaron John Sabu** \n- **Radhik Rammohan** \n\nCourse project for **ME6102 – Design of Mechatronic Systems** \n**Indian Institute of Technology, Bombay**\n\n## License\n\nThis project is licensed under the **MIT License**. See [`LICENSE`](LICENSE) for details.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Faaronjs99%2Fmechaxy","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Faaronjs99%2Fmechaxy","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Faaronjs99%2Fmechaxy/lists"}