Hi all, I'm looking a low cost and simple to control over USB portable power supply. Until now I found only this IndieGoGo project . It seems to be cool but a bit too expensive and I don't want to wait until September when (and if) it's released. Does anybody know a cheaper alternative to such device (relulated voltage from 1 to 15v, no special USB drivers to control it, up to 0.5a of current)? This is the link to the EasyVolts device video.