Data Sheet
Introduction: This motor driver board for the BBC micro:bit allows two motors to
be driven simultaneously with forward, reverse & stop control, making it ideal for
designs such as buggies. It is based on the DRV8833 motor driver IC, which has
built in short circuit, over current and thermal protection.
The board includes an integrated Edge Connector slot for your BBC micro:bit to
easily slot into. It also features external connections to the button A and button
B inputs. This allows additional switches / inputs to be connected to the motor
driver board and the state of these can then be read by the BBC micro:bit.
There are 2 additional inputs / outputs. These can be used for connecting a range
of parts and can be used in either digital or analogue modes.
The board also produces a regulated 3V supply that is fed into the 80 way
connector to power the inserted BBC micro:bit, removing the need to power the
BBC micro:bit directly.
Layout:
BBC micro:bit
compatible connector.
Terminal blocks for
connecting Motor 1
and Motor 2.
Terminal block connections to Button
A and B on the micro:bit (taken low
when pressed) with additional GND
(0V) connections.
Terminal Block for power (4.5-6V).
Inserting a BBC micro:bit: To use
the motor driver board the BBC
micro:bit should be inserted firmly
into the connector as shown left.
The board has been designed so
that the BBC micro:bit can be
inserted either way around (facing
forward or backwards) however if
you wish to use the broken out
pins the LED matrix on the BBC
micro:bit must be facing them.
Examples of board in use: This
breakout board is used in our ‘BBC
micro:bit buggy’ example. For
more details visit
www.kitronik.co.uk/microbitbuggy
Terminal blocks
to P1 and P2.
These can be used
as inputs or
outputs in either
digital / analogue
modes. Additional
3V connections
are also provided.
BBC
micro:bit
Pins broken
out with 0.1”
spacing.
Motor Driver Board for the BBC micro:bit
www.kitronik.co.uk/5620