Deskbot Baymax

Flow: Web app → Jetson FastAPI → Raspberry Pi FastAPI → motors/display/audio/buttons.

Running

1. Raspberry Pi (port 9000):

cd pi_device_service
pip install -r requirements.txt
uvicorn app.main:app --reload --host 0.0.0.0 --port 9000

2. Jetson Orin Nano (port 8000):

cd jetson_backend
pip install -r requirements.txt
uvicorn app.main:app --reload --host 0.0.0.0 --port 8000

3. Open the web UI at http://<jetson-ip>:8000 in a browser.

Health Checks

• Jetson: GET /health
• Pi: GET /device/status

Modes (color-coded in UI)

Mode	Color	Features
Kids	Red	Trajectory mapping (mat), storytelling, snake game, memory game
Young Adult	Green	Puzzles, peer tutoring, trajectory mapping (desktop)
Adult	Yellow	Guided meditation, facial recognition

Keyboard Shortcuts (Motor Controls)

• Arrow keys: drive forward/backward, turn left/right
• Spacebar: stop

Architecture

• jetson_backend/ — FastAPI brain + web UI (static files)
• pi_device_service/ — FastAPI hardware interface (motors, display, audio, buttons)
• jetson_backend/static/ — Frontend (HTML/CSS/JS, served by Jetson)

Placeholders

Audio, display, and motor controllers use placeholder functions. Replace with actual GPIO/PWM/audio drivers when hardware is connected.