FYI I put a couple batteries through the bot and it's performing awesome.
I am doing my best to understand it but it's more advanced then I am at this point . I've read the code multiple times and picking up on a few things.
My personal advice: don't cut corners, we all started by blinking a led and replicating the sketch examples
#define LIMIT_ANGLE 40 // Max range, adjust to your specific controller/servo
IF you get probs with the Sabretooth I'd suggests going with...
Switch 4 DOWN and 6 UP appears... I think .. to be the correct setting for use with the Arduino prog v1.7
Microcontroller pulses, independentlinear control: An R/C servo signal isconnected to terminals S1 and S2. A1000us - 2000us pulse controls speedand direction. 1500us is stop.
Which Sabretooth model do you have?https://www.dimensionengineering.com/datasheets/Sabertooth2X25QuickStart.pdfThat appears to be 2,3 and 5 ON
@kas do you have any idea why the sabertooth is performing this way?
Fullspool....Do you have R/C gear...If so ...I'd use it to check that both channels of the Sabretooth actually work.I say this because your description of the Sabretooth's behavior seems to point towards a dead channel input.