2 ms·
That previous thread the other day made me wish there was a cheap usb pluggable to tell you about the quality (and quantity) of voltage from a usb device. Simp
by ck2 3y ago
That previous thread the other day made me wish there was a cheap usb pluggable to tell you about the quality (and quantity) of voltage from a usb device.
Simple small screen or just led lights.
Maybe even a "kill-a-watt" for usb power cube/banks.
- wepple 3y agoThe tools exist, but maybe not in a single nice package. I use: - A pass-thru USB power meter. Measures volts, amps, wattage (simple arithmetic), and watt-hours - a USB load device. You can configure the voltage and amps to draw. Used in conjunction with the above, you can see just how much a USB supply can supply - a watch cell powered cable tester. Not essential for your use-case, but great for working out whether a cable is at fault or not. None of this directly measures quality, but usually you can infer that from amps, and from negotiation.