I got my Eggfinder mini built up to the point where instructions called for hooking up the USB cable to interface with a computer and test the GPS unit. Visual GPS, putty, teraterm... I couldn't make them work. I used to be pretty swell with computers in 1990.... Anyway, I remembered I have a OTG USB cable and I wondered if there was something for android. I found "Serial USB Terminal" by Kai Morich in the play store. Downloaded, plugged in cables, hooked up Eggfinder, plugged in battery... Not sure what any of it means but it sure looks like magic was happening as numbers and letters began to scroll!