The barrel connector requires a minimum of 7 Volt.
You hook up a 5V supply to the 5V pin. And you can not have 5V from USB and on the 5V pin at the same time.
The barrel connector requires a minimum of 7 Volt.
You hook up a 5V supply to the 5V pin. And you can not have 5V from USB and on the 5V pin at the same time.