We all know that the voltage of micro:bit is 3.3V only.

We all know that the voltage of micro:bit is 3.3V only. What if we want to connect with a sensor of 5V? To solve this voltage problem, we have octopus:bit, a breakout board for micro:bit. It has a voltage switch on the board, which allows you easily shift voltage between 3.3V and 5V. Sounds amazing? Just take a look here!https://www.elecfreaks.com/12396.html