Quote:
Originally Posted by Hocrest
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By 'a few things' you mean a dropping resistor, voltage divider or other voltage converter to reduce the vehicle's 12V+ to 5V+ for the RS232/TTL converter linked to above or similar premade device?
This seems a quicker and less complicated method to get to the same place as building the interface from scratch.
We could then connect with the audio plug described as follows:
pin 2 (orange/white) transmit (rs232/ttl)
pin 3 (blue/white) receive (rs232/ttl)
pin 5 (red/black) to +12V in (choice of above) to +5v out (rs232/ttl)
pin 9 (green/black) ground (rs232/ttl)
Good show!