On Thu, Feb 18, 2010 at 10:56 AM, va7gte <[email protected]> wrote: > Is there any way to use a Bluetooth module like this one > http://www.sure-electronics.net/download/GP-GC021_Ver1.0_EN.pdf > wired into the OT2M ?
This is a 3.3V device, and as best I recall there is no 3.3V source on the OT2m. That means you'd have to also include a 3.3V regulated supply. It also uses 3.3V TTL rs232 signals, so you'd either have to tap the serial port on the microcontroller/TTL side of the rs232 transceiver (MAX202 clone, IIRC?) and convert those between 3.3V to 5V, _or_ include a 3.3V to RS232 transceiver for the bluetooth module and tap it on the RS232 side of the MAX202, or do it outside of the case (i.e. build your own wart-box for the BT module + supporting hardware). I don't have an OT2m, so I couldn't say how easy it would be to shoehorn all this into the case. oops, that's a _metal_ case on the OT2m. You'll need the BT antenna on the outside, if you want to be able to actually talk to it... -Jason kg4wsv
