The USB interface is being increasingly used as a power supply and charging port for ... resistive divider that has a range of up to 6V. An Arduino sketch reads voltage and current data on the ...

[Aleksejs Mirnijs] needed a tool to accurately measure the power consumption of his Raspberry Pi and Arduino projects ... Since most SBC projects require a USB hub anyway, he designed a smart ...

The Arduino Nano and Raspberry Pi Pico support different input voltages, so they also use different power sources. However, they can both be powered with a 5V supply via their onboard USB ports.