The Terminal Breakout board for the BBC microbit does exactly what it says on the tin. It breaks out all of the signal and power pins on the microbit to user friendly terminal blocks. No more untangling M/M or M/F jumper cables from the hastily tidied collection stashed in the corner of your drawer. Just cut a length of wire from one of your more tidy spools, strip off a bit of shielding and screw it into place in the appropriate terminal block. And, if you need to move your project for any reason, having the wires screwed in place means that you can do it without having to deal with the jumper connections that didn't survive the move. Build your circuit only once!
It features a terminal block breakout point for each BBC micro:bit IO pin, a switch-controlled input power terminal block, two output power terminal blocks (fed through power from the switched input) and Link compatible connections for other BBC micro:bit accessory boards.
Power is provided via the input terminal block. The board has no voltage regulator, or overvoltage protection, so the supply voltage MUST NOT exceed the rated supply of 3.3V for the BBC micro:bit.
If the BBC micro:bit is powered via its USB connector, there will be no power at the 3.3V terminal block output connections; this is to provide some overcurrent protection for the BBC micro:bit.
To use the Terminal Breakout board, the BBC micro:bit needs to be firmly inserted into the edge connector in the centre of the board. The BBC micro:bit can face in either direction and all the terminal blocks will be fully functional.