USB Charger Doctor - In-line Voltage and Current Meter Microbit It will also protect against

It will also protect against output shorts

or can be used as inputs from switches and sensors

6 x Smart Cards

We've put together a one-line-installer for the Python library too

USB Charger Doctor - In-line Voltage and Current Meter Microbit It will also protect againstHelp! This patient is heating up! Is the voltage too low? Is the current draw too high? Is there a doctor in the house? Oh, thank goodness, the Charger Doctor is here! Right on time Doctor, can you tell us what the current draw is? What about the voltage? Thanks to the Doctor, you will now be able to watch and care for your USB powered projects. Use the USB Charger Doctor to measure the working voltage and current output for any USB port and project.