Are there any self contained devices, eg a battery powered USB cable for USB host on the HP touchpad?
I was thinking about building one (but if there already is one then it will be a waste of my time)
(based on this design http://www.jameco.co...tml?CID=altoids
My current plan is to take the design of the altoids tin USB charger, with a few modifications for using 2 AA batteries and upping the voltage to 5V instead of the more common 9V battery and using resistors to bring the voltage down to 5V
(AA rechargeable batteries are more common, cheap and easier to work with)
Then instead of just the standard USB port for charging, I will keep that but also cut the power cables from the OTG cable and solder them to the power connectors for the USB charger, and having the data connectors pass through to the HP touchpad
Is it worth doing, and will it work, or did someone already make one?
edit: found a AA version so even less figuring out for me http://www.ladyada.n...ake/mintyboost/
Edited by Razor512, 27 February 2012 - 09:35 AM.