Features:
- Fully HAT specification compliant
- 5V switching regulator to safely power the robot and the Pi from 7V to 10V batteries
- LED indication of 5V power status
- High efficiency, dual H-Bridge driver to drive 2 DC motors (or 2 sets of 2 if using paired motors on each side of the robot)
- 6, 5V level shifted GPIO inputs with GVS 3-pin connectors (Ground, Volts, Signal)
- 4, 5V level shifted GPIO outputs with GVS 3-pin connectors
- 4-pin male header to directly plug in an Ultrasonic distance sensor. Only uses a single pin on the Raspberry Pi GPIO
- Optional separate power for motors (up to 11V and 1.5A per motor)
- The output connectors can be used directly to drive servos
- I2C breakout connector (standard 4tronix I2C port)
- Includes 2 mounting pillars and screws so it can be securely mounted to your Raspberry Pi
- All of this is directly supported in Scratch GPIO 4 onwards
- many thanks to Simon Walters for some excellent work
- Python library module and examples freely available


RoboHAT ドキュメンテーション
https://4tronix.co.uk/blog/?p=1196
5Vスイッチングレギュレータ：Pi およびロボットに電源供給、7V - 10V バッテリ,デュアルHブリッジ チップ ：2 DCモーターサポート,GPIO in（5V 3-pin）x6、GPIO out（5V 3-pin）x4,HC-SR04（超音波距離センサー）用 4-pinヘッダー、I2C コネクター,Raspberry Pi A+/B+/2B/3B 対応、ハンダ付け組み立て済み