Nano acting as a switch to Galileo board (voltage too low)


I'm using a usb powered Arduino nano and a PN2222 transisitor to turn on/off an Intel Galileo board. This is the circuit I’m using (replacing the motor with the Galileo).

However, there is a voltage drop across the transistor and the Galileo board is not getting enough voltage to operate correctly.

Eventually, I need to battery power the nano on the Vin and Ground pins.

IS there a way to output more than 5 volt from the nano? Or could I use another setup to act as a switch?


Your circuit diagram is missing.

A FET instead of the bipolar transistor can reduce the voltage drop.

Yes, a low Rds MOSFET would have very little voltage drop across it, dependent only on current.