hi DuaneB,
i have study your work since last weeks and its a great help for me, you have made a nice work and i want to say thank you to give for other users.
my setup is a traxxas slash 4x4 chassis, original Servo, motor+esc+fan from velineon, two arduino uno, lipo 2s, xbee for comunication between control and rc car, one wiichuck and one BEC 6V.
i have the comunication setup ok, i can control the servo with nunchuck with xbee and now i´m started working with ESC and motor.
i a have the lipo powering the ESC/Motor and i use an adjustable boost regulator from polulu to powering the arduino from lipo (isolate from possible noise of motor).
to connect the ESC i thinking in this wire config:
ESC:
Red/black power->to lipo
3 wire ABC to motor
last 3 wire to control ESC: one to pwm from arduino, the others black and red to output of BEC (6V). im thinkink trying this config today, one your blog you says to put one resistor in pwm line, im thinking put one 330ohm like u.
But i can´t find any documentation to arming this type of ESC.