Running GL-AR150 from 3.3v

Is it possible to run the AR-150 from 3.3v instead of 5.0v?

Can I just put 3.3v on the micro usb port or do I need to attach to the 3.3v header?

You can try to attach to the 3.3V header. But I am not sure.

USB-A may not work because of low voltage.