quote/This does not inspire confidence
Code: [Select]
Serial.print(" LeftMSpeedF =");
Serial.println(RightMSpeed);
/quote
Ya, that's a bit of a goof, but does not matter to the end result because its on the right motor, which is working as it should.
I have experimented with the pins too. I switched to 9 for pwm for a bit to test. It made no difference but it did introduce some chatter to the servo for some reason so I switched it back.
Next step, I'm going to switch out the big 12V motors for something that might be easier to turn. It's a long shot because one seems to work fine and I have swapped left to right already.