VMM006
V. 01 – 10/12/2018
4
©Velleman nv
Type
Instruction
Buzzer
Buzzer is controlled by P0.
LED COL
micro:bit LED matrix control pin
VCC switch
3.3 V/5 V electric level switch only for P13-P16, P19, P20.
Button-A
micro:bit main board button A
P4-P7, P9, P10, P13-P16, P19, P20
Digital connector
P4, P10
Analogue connector / PWM (~)
SCK MISO MOSI
Hardware SPI pin -P13, P14, P15
SDA SCL
Hardware IIC pin -P19 ,P20
Power switch
External power switch
6-12V GND
External power connector
M1+ M1- / M2+ M2-
Connector of two DC motors
PWR
Power indicator
Pins P1 and P2 (speed) and pins P8 and P12 (direction control) are internally connected.
7.
Connectors
7.1
VCC 3.3V/5V
Slide the switch to 5 V. The electric level of the blue pins (P13, P14, P15, P16, P19, P20) are now 5 V and the
voltage of the red power pins are 5 V too. Similarly, slide the switch to 3.3 V. The voltage of the blue and red
pins are 3.3 V.
The G-VCC-SIG connector supports a 3.3 V or 5 V power device by shifting the electric level through the VCC
connector via a dual electric level switch.
