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Klip Motor Driver for the BBC micro:bit

www.kitronik.co.uk/5655

The Klip Motor Driver for the BBC micro:bit does much more than simply drive

motors; pins 0, 1, 2, 3V and GND are also broken out (just like the main pads on

the BBC micro:bit itself), and there’s a ZIP LED output as well, along with the

battery voltage and another GND connection. All of these pads are designed

specifically for use with crocodile clips and banana plugs.

The Klip Motor Driver can run two DC motors simultaneously, both clockwise and

counter-clockwise, and at varying speeds. Some examples of motors to use

would be

www.kitronik.co.uk/2547.html with www.kitronik.co.uk/2594.html and

www.kitronik.co.uk/2591.html. The ZIP LED output connection is ideally suited

for use with the ZIP Hex boards (

www.kitronik.co.uk/35140.html) as they also

have croc-clip connections. Finally, the main BBC micro:bit pin breakout section

is great for controlling the Kitronik :CITY products: the STOP:bit

(

www.kitronik.co.uk/5642.html), the LAMP:bit (www.kitronik.co.uk/5643) and

the ACCESS:bit (

www.kitronik.co.uk/5646-accessbit-for-bbc-microbit.html).

Board Layout & Dimensions:

BBC micro:bit

Edge Connector

M3 Mounting

Hole

3 x AA

Battery Cage

M3 Mounting

Hole

M3 Mounting

Hole

M3 Mounting

Hole

Front View:

Rear View:

Pin 0 Connection

ZIP LED Output

Power Switch

3.3V Output

Motor 1

Outputs

72mm

70mm

Pin 1 Connection

Pin 2 Connection

GND Connection

+V Output

GND Connection

Motor 2

Outputs

Power is provided via the integrated

battery supply (3 x AA, ~4.5V), and the

board then produces a regulated 3.3V

supply which is fed into the 3V and GND

connections to power the connected BBC

micro:bit, removing the need to power

the BBC micro:bit separately.

Note: If the BBC micro:bit is powered via

its USB connector, and there are no

batteries inserted, there will be no power

at the 3V output connection – this is to

provide protection for the BBC micro:bit.

Examples: For some starter ideas of how

you could use the Terminal Breakout

board, go to:

http://www.kitronik.co.uk/5655

The BBC micro:bit needs to be

firmly inserted into the edge

connector with the BBC micro:bit

LEDs visible to the user.

Summary of content (3 pages)

PAGE 1
Klip Motor Driver for the BBC micro:bit www.kitronik.co.uk/5655 The Klip Motor Driver for the BBC micro:bit does much more than simply drive motors; pins 0, 1, 2, 3V and GND are also broken out (just like the main pads on the BBC micro:bit itself), and there’s a ZIP LED output as well, along with the battery voltage and another GND connection. All of these pads are designed specifically for use with crocodile clips and banana plugs.
PAGE 2
Klip Motor Driver for the BBC micro:bit www.kitronik.co.uk/5655 Electrical Information Operating Voltage (Vcc) +4.5V (3 x AA batteries – Rechargeable or Alkaline recommended) Regulated Voltage (supply BBC micro:bit) +3.3V Max Current (@ rated Vcc) 6A (Total from switched supply) 150mA (Total from 3V output, allowing 100mA for BBC micro:bit) 15mA (Total from BBC micro:bit IO pins at any one time) Croc-clip Connections 1 x 3.
PAGE 3
Klip Motor Driver for the BBC micro:bit www.kitronik.co.uk/5655 MakeCode Software – Klip Motor Extension (https://github.com/KitronikLtd/pxt-kitronik-klip-motor) This block starts a specific motor (either 1 or 2) spinning in a set direction (forward or reverse) at a set speed (0 to 100%). This block sets a rainbow pattern to be displayed across all the ZIP LEDs attached to the Klip Motor board.