Solutions

Questions

1. Answer: 5 V
2. Answer: 2.8 V
3. Answer: The voltages of the batteries are summed.
4. Answer: It means that the voltage supplied is unchanging.
5. Answer: The voltage regulator in the micro:bit reduces the voltage from 5 V to 3.3 V.

Exercise

• Answer: 6 V / 1.5 V = 4

Project

• Solution: The voltage measured is the voltage regulated by the micro:bit, so the voltage measurement should be closer to 3.3 V.   When the micro:bit is connected to the USB, the supply from the Edge Adapter’s 3V pin should be very close to 3.3 V.