How to connect a USB cable to AirBuddy bidirectional amplifier

A quick guide on how to identify wich wires to connect to power the AirBuddy bidirectional amplifier from a USB port.
Not all USB cables have Red and Black wires for + and -. So you have to measure with a voltmeter.
Between +5V and GND, the voltmeter ahould read about 5 volt.
Between +5V and a data wire and between -5v and a data wire, voltmeter should read something(between 0.01v and 5v).
Between the 2 data wires, voltmeter should read zero volt, if you connect the cable to a phone charger!
+5V wire you ahould connect to the red wire of the amplifier and GND wire to the black wire of the amplifier!

[@adaniel69]

I said "wrong connection" because "minus" apperead on the multimeter!

[@robertVandelanotteonlinemoney]

😁 Nice...

[@esatdemir3097]

can you tell me if these are working, brother

[@corneliugorcea6833]

👍