Got the throttle to work now. The first problem was the WP-1040 ESC could not handle my 4S battery. It only can handle a 2S or 3S. But i set the jumpers to LIPO on the ESC.
WP-1040 Manual
So i had the battery now correct and the ESC beeped 3 times when i connected a 3S battery. Next I needed to get the throttle transmitter settings correct. The throttle channel is 3. To make sure i can go forwards and backwards, i need to set the trim to the mid point. I need to be careful, because i have a MODE 2 transmitter setup, so the left throttle stick does not have a spring, so it does not spring back to the middle.
Set the throttle to the middle, so forward is up and reverse is down.
RC_TRIM = 1500
Set the ARMING to not check for GPS. Most of my testing has been indoors.
ARMING_CHECK = 0
When I 3D print the Pixhawk mount for crawler, I will give more details on the setup. I plan to run a Pixhawk and a Raspberry Pi 3 with a Neato LIDAR.
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