A raspberry pi HAT containing the interfaces used on Erica. This board has the hardware for all of Erica's functions, however only some will be populated on each pi
- ID EEPROM as per the hat specification.
- Button and Status Indicator to provide information on the state of the pi.
- DC Input allows powering of the pi through the HAT.
- GPIO Breakout an 8P8C connector containing broken out GPIO, used for the touch sensors.
- Temperature Sensor for measuring Erica's internal temperature.
- Real Time Clock maintains a time reference when Erica is powered off.
- Webcam Led Controller controls the brightness on the eye webcam LEDs also has USB passthough to the webcam.
- Servo Connector for connecting the eye servos (directly connected to gpio for use with servoblaster).
- DMX Interface for controlling DMX fixtures from the pi.
- Debug USB-serial connects to the pi's console for debugging.