This board has been redesigned and improved and is now available in a more compact version here.
This board provides a simple way to add motor driving capability to a BBC micro:bit. It allows two motors to be driven with full forward, reverse & stop control. It has terminal blocks to connect four input devices and a regulated 3V supply is fed in to the 80 way connector to power the inserted BBC micro:bit.
This makes it ideal for designs such as buggies (see below).
It includes an integrated Edge Connector slot for your BBC micro:bit to easily slot into. It also features external connections to the Buttons A and B inputs. This allows additional switches to be connected to the motor driver board and the state of these can then be read by the BBC micro:bit.
Get up to speed quickly. Example Microsoft TouchDevelop code and example connections in the datasheet (below).
- Drive 2 motors with full forward, reverse and stop control.
- Terminal blocks for easy connection of motors and inputs.
- 4 inputs (2 analogue inputs and 2 provide external connections to Buttons A and B as inputs).
- Includes Edge Connector for the BBC micro:bit to slot into.
- Provide regulated power to the BBC micro:bit.
- 1 x Edge Connector Motor Driver Board for the BBC micro:bit.
- Length: 67mm.
- Width: 53mm.
- Height: 18mm.
- 1 x BBC micro:bit.
- 4.5 - 6V Power Supply.
- 2 x DC Motors (that are compatible with the power supply used).
- 1 x Flat-headed Terminal Screwdriver.
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Thank you for your question. You can control speed on the motors with this board so I am a little confused by the question. We have a set of custom blocks that you can add in the blockly editor for precisely that.
It is a little difficult to code changing speed for the micro:bit because it uses a 3 channel PWM but the block code should stop that being an issue.
Please could you give me price for professionnal without VAT ? (I am located in France)
What is you delivery time for 15 products ?
If you create and account and then email us with your VAT number we can set you up to see pricing without VAT.
Hello Chris, Input 1 or P1 isn’t linked to 3V’s, although the box use the same terminal block the two connects aren’t linked at all. The 3V’s powers the board and provides power for the BBC micro:bit, P! is an input/output pin that either sends or receives signals to the BBC micro:bit.
Hi Geoff, We don’t currently have a CAD file for the motor driver board. We are in the process of introducing a new version so it may be once this introduction is complete a CAD file might be created.
Hi Stephen, Currently the motor driver can only drive two motors, and as such we don’t have a product that can drive 5 motors.
You can use PWM with Pin 0 currently, the other three pins where motors are connected can’t use PWM. We are looking into the feasibility of using all PWM pins in future versions, however this is not going to happen in the near future.
Currently the only pin that can be used in this way is Pin 0, so you would be able to analogue write to pin0 and set pin16 low, connecting the positive of the motor to pin0. Unfortunately you can’t analogue write to pin16, pin8 or pin12. We are looking at altering this on a new version of the motor driver board so that all four motor pins can use the PWM function.
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