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Old December 23rd 12, 01:42 PM posted to rec.aviation.soaring
Richard[_9_]
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Default Updating Software on Butterfly 57 mm version 2.1 display w/o Cable?

On Saturday, December 22, 2012 10:01:52 PM UTC-8, wrote:
As long as the update through the brick is not yet available, I update my display with the cable. This cable is easy to manufacture for little money from pretty standard components on ebay. See detail of my cable at: http://sites.google.com/site/threeun...terfly-display 3U


3U
The cable does not require a TTL converter. All that is needed is 3v power, ground and the NMEA connection to a serial port. Pins 2 & 3 PC are RS232 not TTL. Per the diagram.

Richard
www.craggyaero.com