Quote:
Originally Posted by Paul_S
I've hit some problems with the whole USB OTG and power combination as well as standby power issues but I'm getting there slowly ( see here).
So I'd vote to go Android! |
I had these same issues (though with a windows tablet) and think I finally solved them. (incredibly annoying)
1) I found an OTG USB hub that takes external power, and powers both the tablet + peripheral devices, with a built in relay. It needs to trick the host USB controller though, so only works on a few specific models of tablets.
2) USB chargers suck, and USB cables suck. at 1A of power, if you have even 1 Ohm of resistance in all your cabling and connectors, you're only getting 4V at the end. Even with the best cables I could find, I was only getting ~4.6V at the tablet, and that wasn't enough to make it charge. I ended up solving this from both sides:
- I made my own USB cables using 18Ga wires
- I got an adjustable buck converter, so I can run the source at 5.25V, and then it's still 5.0V at the tablet after all the losses.