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The ESC should have an optional voltage cut off which you need to turn "off". Since the rules state that the Arduino controlling the motor must be powered by the main battery supply, attach separate leads to the battery and run them through a voltage regulator and then to the Arduino. My vehicle ...

The ESC should have an optional voltage cut off which you need to turn "off". Since the rules state that the Arduino controlling the motor must be powered by the main battery supply, attach separate leads to the battery and run them through a voltage regulator and then to the Arduino. My vehicle ...

Based on the symptoms you're currently having, I would place my bets on a voltage drop as well. I assume currently you're powering the Arduino with the ESC's built in BEC?

Yep, I was powering the Arduino with the BEC. I am now powering the Arduino with a 9V battery and everything is functioning ...

Do you have more information? eg what motor esc battery are you using, what is the weight of the vehicle, etc

Yes, I should have posted that to begin with. The motor is a Traxxas Titan 12T 550 size and the ESC is a Hobbywing Quicrun 1060. The battery is a Tenergy 7.2 Volt NiMH 6 Cell. I think I ...

It is brushed. Is it possible that I am triggering my ESC's low voltage mode as my battery may have a low discharge capacity and is not up to the task of running the motor at full throttle?

Did you calibrate the esc and have you tried using interrupts for the encoder and just using servo.write() with a while loop in the main loop, like this:
while(count < targetDist)
{
servo.write( what ever speed you want )
}
Yes I calibrated it. I've already figured out the problem and it should ...

Today, we got a lovely state-specific rule that says programming from a computer is considered remote control and will result in participation points only. While we are waiting for clarification about what this actually means, I am prepping for the worst case scenario that this applies to ...