bottom of the unit Pin | Pin Name |
Description |
1 | ext. power | 3.3v externally regulated. DO NOT FEED WITH 12 VOLTS! |
2 | serial in | RS232 data, connect straight to PC com port |
3 | serial out | RS232 data, connect straight to PC com port |
4 | ground | signal ground |
5 | headphone select | ground this pin to disable internal beeper and send audio out connector instead |
6 | left audio | for the firmwares mp3/ogg player, of course |
7 | right audio | and the waypoint voicenote feature, too |
The PC-DI7 cable uses four pins, but doesnt bring out the audio connections for simultaneous use as an audio player.