This is version 4 of the RaspiRobot Board motor controller and robot interface board.
New in this version:
- Buck-boost power supply making the board more resilient to battery voltage drop and even able to power your Pi from a 3V battery pack.
- Raspberry P 2/3 style 40 pin connector
- On/off switch
- Two Servo connections
- Extra GPIO connections to GPIO pins 4, 10, 9, 9, 11, 20 and 26
The board still has the original HC-SR04 rangefinder socket and an I2C interface socket as well as two pin headers connected to GPIOs 20 and 26 intended for use with switches.
There is a new Python library to download for the board from https://github.com/simonmonk/rrb4.