QuikTune on a Pixhawk 2.4.8?

ArduCopter Copter 4.6
1

Can anyone tell me if running QuikTune on a 2.4.8 is a bad idea or not? I have enabled scripting using custom firmware

Thanks!

2

A response to a previous post which probbaly applies to any F4 based FC:
There was exactly one LUA script memory setting that worked - that was enough memory to run the script, but small enough that the FC had adequate ram for it.

I monkeyed around with a Lua script on a Pixracer (F4) and gave up and replaced the Flight Controller.

3

Okay… My firmware is about 1.2 MB. Does that mean I get to use the rest for scripting?

I found that other thread, and I guess its a bad idea

4

Seeing that the blanket statement in the Arducopter Lua Scripts Wiki page says “Scripting is not available in F4 based autopilots”…

5

I did see that but since I am using a custom firmware and I’m not doing anything else other than quiktune, I thought there was a chance. How can I check available memory (ram) though? The website says 80kb minimum requirement. My chip has a total of 256KB ram

6

SCR_HEAP_SIZE default value indicates memory available for scripting. It probably says 44k. Cubes are 204k

7

My experience with that flight controller is it’s not a good idea.

8

Just use autotune, why would you not?

3 Likes
9

Yeah right. It says not enough memory

10

Was planning to get atleast an initial tune done indoors

11

quick tune needs some amount of turbulence. Doing it indoors is a bad idea.

Autotune on the other hand strives indoors.

1 Like
12

I see. This was supposed to be an indoor drone, that’s why. I also thought autotune needs gps lock

13

Not if you run it from Alt Hold. But perform it outside anyway.

2 Likes
14

Just for your information, I was able to load Quiktune by using a custom firmware with a .apj of 1.05 MB, disabling terrain and bumping up the scripting memory to 60000. The FC still had 4000+ free memory.

Of course, I didn’t perform any test flights and probably never will because my TX doesn’t have a three position switch. I might do it for fun a long time later after I set up telemetry and will post the results here if I ever get to do it

15

Hello guys, reporting back to say that QuikTune did run. I tried it out of curiosity and it seems to be working. I did this indoors with no GPS.

I used a knob instead of a three position switch