More on AM32 - weird settings, weird temps, but flies OK so far

Hardware Multirotors
1

I posted about a week ago about a Skystars KM55A 4-in-1 ESC with AM32 that over temped (>130 degrees) and quit in about 10 minutes of flight.

I wrestled with the AM32 settings, and then finally decided to try a different ESC with AM32 - so I got in a Holybro Tekkko32 F4.

Again - I mounted it in my enclosed drone body:

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It took a while to sort out the parameters. Setting the PWM frequency too high would cause the motor to not spin. Setting Running Brake Level too high would cause the motor to either make funny noises, shake, or not start.

Using “By RPM” for PWM Type and “Auto Timing Advance” seem to work OK.

I could set Running Brake Level up to “4” but both “3” and “4” caused strange behaviors. (motor squeals or shakes) So set Running Brake Level to “2.”

Here’s what I found seemed to work OK:

settings that work using 2-18rc1
settings that work using 2-18rc11342Ă—916 90.1 KB

While these settings seemed to fly OK, the temperature telemetry is something I don’t understand:

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I have no idea why the temperature telemetry would start out as a spike of 250 and the gradually decrease down to about 10 degrees .

Current and voltage are not reported - even with the EDT setting for Blheli/Kiss+EDT.

I’d be interested to know what other people have experienced with AM32.

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Temperature on F4 based ESC’s can be problematic or meaningless.

1 Like
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Thanks Dave - yes, I’ve heard that.

As I was assembling the copter I did bench runs to see if the ESC got warm to the touch. It was always cool.

I’ve heard from the FPV voices that the Skystars KM55A works for them - but it was a real problem for me.

I never had a problem with ESC overheating in this frame - so lacking good data, I’ll just cross my fingers.

I just wish the AM32 settings weren’t so goofy.