Can you change PID's in flight

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BeringBullet
Posts: 27
Joined: Tue Nov 13, 2012 10:02 pm

Can you change PID's in flight

Post by BeringBullet »

Is it safe to use you phones Bluetooth to set the PID's while in flight, I want to preform slow changed to the PID's at a hover and try to feel the changes, I am having a hard time feeling the small changes after I land and update everything.
so when the code updates the PID does it do it safe or will it crash our of the sky?

Alexinparis
Posts: 1630
Joined: Wed Jan 19, 2011 9:07 pm

Re: Can you change PID's in flight

Post by Alexinparis »

Hi, currently, you can, but the EEPROM write process takes some time (few ms).
So you could encounter a big glitch at the moment you click on Write

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alll
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Joined: Fri Dec 07, 2012 9:53 am

Re: Can you change PID's in flight

Post by alll »

In which release can this be done, does any code changes have to be applied?

Alternative:
Change the values in memory without storing in eeprom. Land, and only the save to eeprom.
manu

copterrichie
Posts: 2261
Joined: Sat Feb 19, 2011 8:30 pm

Re: Can you change PID's in flight

Post by copterrichie »

alll wrote:In which release can this be done, does any code changes have to be applied?

Alternative:
Change the values in memory without storing in eeprom. Land, and only the save to eeprom.
manu


I think writing to eeprom upon landing and disarming would be the best and safest way of doing it.

tovrin
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Joined: Tue Sep 20, 2011 4:08 pm

Re: Can you change PID's in flight

Post by tovrin »

I'm curious to find out if anyone has tried this and what happened #vicariousme

BeringBullet
Posts: 27
Joined: Tue Nov 13, 2012 10:02 pm

Re: Can you change PID's in flight

Post by BeringBullet »

Well going to try this afternoon, I will let you know what happens, (going to fly low and slow for this one)

it was to windy to tune the PID's but we had some good first flights/crashes and my first FPV flight
here are my first videos

http://www.youtube.com/playlist?list=PL ... lNUukB4ccR
Last edited by BeringBullet on Thu Sep 12, 2013 3:05 pm, edited 1 time in total.

scrat
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Location: Slovenia

Re: Can you change PID's in flight

Post by scrat »

You can save PID's inflight over bluetooth...but like Alex said...sometimes you get a big glitch. I have tried this and now I'm not using it anymore.

@alll: no code change is required

bikerboy
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Joined: Wed Jul 03, 2013 4:16 pm

Re: Can you change PID's in flight

Post by bikerboy »

It can be done, as long as you don't hover too low!

I got about 30-40 degrees of lean to one side when I did it, kind of scary at first, but manageable with enough height.

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ezio
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Re: Can you change PID's in flight

Post by ezio »

Alexinparis wrote:Hi, currently, you can, but the EEPROM write process takes some time (few ms).
So you could encounter a big glitch at the moment you click on Write

And what if I send MSP_SET_PID without MSP_EEPROM_WRITE?
New values will be used?
Bart

Noctaro
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Re: Can you change PID's in flight

Post by Noctaro »

Hi, i think so, if you set PID per KV OSD they are not stored until you hit eeprom write, but still are used until next reboot.
Greetz Noc

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