Hi everyone, I would like to know if there is a program to check the voltage of my usb port from a laptop. I know there are devices that require high voltage and low voltage via usb port. Is there a way to check is the device plug into a usb port is using either high or low voltage? is there a way to make low voltage usb port to a high voltage usb port?
usb ports can't change voltage, its fixed 5V, but they can change amperage.. but usually laptop ports are limited to 500mA.