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Old 05-02-2014, 10:07 AM   #8 (permalink)
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re: bluetooth, bluetooth uart modules are like $5 these days
I just picked one up and was talking to an arduino with an android tablet in no time.
ArduDroid: A Simple 2-Way Bluetooth-based Android Controller for Arduino

it is 3.3v (that is what the resistors are for) so you just need to level shift your alltrax accordingly (i.e. max232 or a couple resistors and a transistor, borrowed from the lower left of the arduino serial board)

My 4g relay with its keyboard makes for a nice tiny serial terminal. If I need to tweak a controller I can just whip out my phone instead of hooking up a laptop (as well at being good at graphics).

edit, looks like an integrated bluetooth/serial "dongle" is $13, just plug it in to your alltrax and connect with your bluetooth device.

Last edited by P-hack; 05-02-2014 at 11:41 AM..
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