Is there a standard used for the arduino yun? I read in the forum peps use their andriod phone charger .. Is it safe to use that? or do I use a external hub and plug my usb cable to power via usb on the yun? Thanks
Any USB power supply will be adequate, as the USB standard is 5 Volts.
I have an old bb power adaptor 5v -700ma. I believe amp plays a part in the power consumption. would this work?
500 mA or more, and you will be fine