Hello, Been pulling my hair out the past few days trying to get my rover to run in RTL, Missions, etc. I can run it manually fine. It’s a simple smart car toy type with the typical yellow hobby 6V motors. I’m running a pair of the motors driving the rear wheels and a MG90S servo for the steering. The ESC is a common 20A RC Brush type with a working voltage range of 3.0-9.4V, inexpensive type found on ebay or amazon, etc. Currently using a Pixhawk 2.4.8 running Ardurover V4.0.0. Attaching to Mission Planner 1.3.56 for configuring. Powering the unit with a 2 cell Lypo running through an APM Power Module. From within the Servo Output menu for Position 2 (channel 2) it set for RCIN2 and Position 4 (channel 4) set to RIN4. These settings will allow it to run great in manual mode. If I switch the settings to Throttle and Ground Steering as in the wiki as I assume are needed for running RTL, Missions, etc. When I power up with these setting the ESC acts strange with a continued rapid string of beep, beep, beep, and won’t engage. If I tweak the trim setting and move the throttle stick I can finally get some movement out of the motors. I tried with/without the brake on the ESC toggled back and forth, not much difference. I’ve googled and read tons on the forums and other sources and tried everything I can think of to no avail. What’s odd is that I first had an older APM 2.8 configured and it would run great in manual but when I would try to run missions, rtl, etc. it would duck walk, (zig zag back and forth) trying to reach it’s destination. After hours and hours of trying to solve that I just gave up and decided to go with the Pixhawk which unfortunately hasn’t been any better. Tried a couple different versions of Ardurover with no luck. Here is a link to the ESC type I’m using
I assume APM is compatible with it as it functioned a little better on the APM 2.8 vs. the Pixhawk. The ESC does power the outputs of the pixhawk, I checked the voltage at around 5.3V so I assume this should be safe.
Please help, it would be much appreciated, I have too much time invested in it to give up