- Power supply from 12V to 36V to 5V, 3A. Powers the Raspberry Pi, and optionally the CAN bus.
- MCP2515 CAN interface (compatible with Linux/SocketCAN) with transceiver and two connectors for daisy chaining.
- Connector for robot's front panel LEDs (dimmable) and pushbuttons.
- Touchscreen connector (I2C for touch, SPI for pixel data)
- DIP switch to discriminate between robots.
- Battery-backed Realtime Clock allows the robot to keep the time even when powered off.
- UART console
- Power control pins, used to cleanly shutdown the Raspberry Pi before shutting power down.
- Socket for a 20 mm DC fan.
- Slot to allow the use of the PiCam camera module.