BPI:bit robot expansion board
About BPI:bit robot extension board
BPI:bit robot extension board is a bpi-bit development board, which is mainly designed for smart cars and robots with bit as the core.At the same time, it also takes into account the ordinary IO extension function, which makes it convenient for users to use their imagination and create possibilities
BPI:bit robot extended board power supply
The extended edition, there are two kinds of power-supply modes, 12V/2A dc power supply and Micro USB via 5V/2A power adapter power supply
- 1,only use the extension board IO extension function , not use instead of dc motor and servo motor, you can use 5V Micro USB power supply directly
- 2,if you want use dc motor and servo motor, you must use must use 12V dc supply.
the BPI:bit robot extension board has (MOTOR A-MOTOR D)4 sets of 8 MOTOR controls, which Can control four dc motor forward and reverse rotation and eight dc motor one-way rotation. At the same time, four standard servo motor interfaces are designed on the extended version to control four servo motors at the same time.The control signal of dc motor and servo motor is chip (PCA9685) extended by the IIC bus interface. The motor interface USES the extended PWM interface, which does not conflict with the sensor interface