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	Benson	2008-03-13 , 13:11
	Posts: 4,930 \| Thanked: 2,272 times \| Joined on Oct 2007	#17

Originally Posted by st5150

Benso, yes level conversion can be a simple resistor in the line/connector.
I just found this link: http://www.eham.net/articles/18197 I like how the guy modified a cheap blue tooth ear piece for line in/line out. I think these are minor problems though, the big hurdle is someone finding the time to port/develop a PSK app for the device.

Yeah, just didn't want someone blowing their mic-in in a careless moment, so it's always worth mentioning.
Either the wired or BT (cool project, BTW) analog link should be pretty straightforward.
Software is probably even less trouble, though:
http://packages.debian.org/sid/psk31lx
Already a deb for armel; it's likely that it can be installed.
And Linux Author mentioned gMFSK, which is gnome, hence should be a pretty simple port.

Regarding 4800 baud NMEA GPS, I'm new to tablets, so can you tell me what is cgps from gpsd? I was more concerned about what kind of hardware would be required to pull spit serial out from the device. So far I've only found overpriced ~$100 blue tooth serial dongles for this purpose.

Nothing tablet-specific; it's one of the progs in the (regular) gpsd distribution. I've not got an N810, so I'm no expert, but I understand it uses gpsd internally. Still, Nokia strips down a lot of "unnecessary" things, so it may not be there. Check by going to xterm and trying to run cgps.

For the serial data, BT-RS232 is nice because of no wires, but expensive. This whole thread is about USB-RS232 adapters, which are typically much cheaper; if you get one of the ones mentioned, it should work.

Last edited by Benson; 2008-03-13 at 13:13.

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