1. Description
It supports the PXT graphical programming interface developed by Microsoft.
You don’t need to download additional compilers.
Itcan be used under Windows, macOS, IOS, Android and other systems.
To take advantage of the driver DC motor, we designed this expansion board.
The board integrates 3.3V and 5V voltage regulator chips, serial communication interface for connecting BT modules and a DRV8833CPWP chip which outputs the maximum 700mA currentIt also has four motor control modes: clockwise rotation/anticlockwise rotation/boot/stop.
PWM supports frequencies up to 100 kHz.
This board also has 3-pin interfaces which can be connected to other sensors.
The motor pin A1, A2, B2 and B1 of the expansion board are controlled by P13, P12, P15 and P16 of the micro:bit board.
2. Specification
VM input voltage: DC 5-10.8V
Operating current of driving part: ≤700mA
Motor output configuration: double h-bridge
Working temperature: 0~50
Size: 70mm*58mm
3.Resource
