"Philip: I have finally achieved auto tune. As James says below, you must NOT be moving the sticks when you enter auto tune. In my case, my trims were not correct. After I ran auto trim, I could then do auto tune. As far as I know, there is no…"
"Wind was up even before daybreak, so no tests yet.
James: You said " Check RCX_TRIM parameters and compare them to exactly what the APM is seeing (I graphed the live values in MP). Either trim your Tx or adjust the parameters".
How exactly did…"
"Thanks, MikeRover.
1. My rover is based on a rock crawler with 4WS and FWD (I removed the RWD motor). Max speed is ~ 1.8 M/s on grass and 2.2 on hard surface. This is OK for me. I am more interested in pursuing smoothness and precision rather…"
"Thanks, TCIII, that seems to work. Any value below 13 does not work on the test stand. This probably depends on ESC used.
I suggest the default be set to 30 to keep other newbies from suffering the same mistake.
Now I can do some tuning!
Thanks…"
"Follow up: Went to larger field and got same results as smaller field. I still have to use throttle in Auto mode.
I did confirm that RTL works as expected but once again had to use manual throttle in RTL."
"Thank you MikeRover for your help.
Note that I am not deliberately trying to Kickstart and my current Kickstart param = zero, therefore I am looking for normal throttle response to auto mode.
1. Current values: Cruise speed = 0.4, Cruise throttle…"
What should the rover do when I switch to Auto mode? Should the motor start immediately? In my case, I have to manually move the throttle stick to control speed all the way to the first WP.The only param that seems applicable is AUTO_KICKSTART…
All LEDs solid, all voltages nominal. Manual and learning modes work fine. With hundreds of meters to WP, rover goes fwd and rev erratically with no steering in auto mode.Please have a look at my 52 sec. video showing MP…
"My code is crude but effective but I do not want to put it into public distribution. However, if you want to play with it, PM me with your email address and I will send it to you "as is, without warranty, etc," ;-)"
"Unfortunately NO. As far as I know, the pinouts are different between various flavors of Arduino.
If you are thinking of implementing APM code on a UNO, I do not think it will work due to memory limitations.
I am no Arduino expert though, so feel…"
I suspected a bad output on one of my APM 2.5 boards and wrote an arduino sketch to check out the ports. They were all working OK. Here is the correlation between APM pin numbers and Arduino pin numbers:APM output pin number Arduino 2560…
"Thanks GregM. Problem went away in a weird way. Shut down computer last night with nothing working, started computer in morning and USB works. I did absolutely nothing to change the situation. "