Where on the Red Board can I pick up communication for serial and / or USB? I'm building my own sensor pack and adding additional processing units. I'm trying to figure out the best and fastest way to interface the two systems.
My other system can use serial or USB so that is not a concern.
-Dr. Juan
Replies
The silk screening on the bottom shows rx/tx 0,1,2,3 in various locations...
Port 0 is the programing interface (for use with your FTDI cable/board)
Port 1 is the GPS port (at least if using the standard firmware)
Port 2 is the ADC (10 bit resolution)
Port 3 is the stock telemetry... this would be a good all-purpose port if you don't plan on using wireless
This page on the wiki has good information including the pin mapping in an excel sheet if you really want to dig in and start going through digital pins instead of ports.
http://code.google.com/p/ardupilot-mega/wiki/Hardware