If you want to do more with the BBC micro:bit, getting those pins from the card-edge connector is going to be your first hurdle. Unlike many dev-boards, the micro:bit isn’t breadboard friendly. That makes the ‘bit durable and easy to manufacture but means you need a special connector.
This surface-mount edge connector is designed specifically for the micro:bit. It’s very slim and fully SMT so it’s a breeze to automate. It also only has contacts on one side, just like the ‘bit, so you save money by only paying for the contacts you’re going to use.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.