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post #1 of Old 12-03-2011 Thread Starter
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Add bluetooth to nmea cheaply?

Project Summary: optoisolator circuit + car usb power adapter + ebay serial bluetooth module = nmea bluetooth on the cheap.

There's some interesting pc, android, and ipad/phone applications out there but no cheap nmea adapter to broadcast data wirelessly, so take the thoughts in these threads:

nmea 0183 to RS232

Sending GX2150 AIS NMEA data to chart plotter over Bluetooth

NMEA over Bluetooth

and add a cheap one of these to nmea output (on ebay as well)

but will need a low voltage power supply, it's low wattage so maybe a battery pack or usb power adapter like rhythmdoctor did. Connect to a pc to configure as a master device (detect other bluetooth automatically) and set baud rate?

rather than spend $300 - $500 on bluetooth, maybe less than $40 to add bluetooth?

Now it's worth trying out that $10 iphone application!

or using that free pc chartplotter program

So some one draw us a circuit diagram please.

Last edited by IPM; 12-03-2011 at 10:55 AM.
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