MultiWii

because baro signal is not updated internally so fast. See Baro_update() function and you will see you can't expect a new value sooner than 20ms after the previous one. I agree on Baro being updated every 20ms. But signal in multiwii config is received only every 300ms or so (please correct me here...

Those are board related problems (or warming up, or simply weather change on a 20 min timescale). My was an issue about software. I repeat the question. Baro signal has some aliasing (i.e.: two successive points with the same value), that happens really often (every 3-5 points). Since the signal in ...

What about MultiWii conf. The Mac version has some troubles with the bluetooth, it is extremely slow. I know nothing about processing, so it would be better if somebody else tackles the issue. Second problem, i have noticed some issues in the baro signal on Multiwii conf: Baro signal has some aliasi...

fscanf reads one line untill a terminator byte (LF or CR). arduino standard code uses LF as terminator for serial communication, It looks like i have to fread the serial communication (byte by byte) and parse it depending on the length of data. I should manage now. I will post here results (if anybo...

I tried today to stream the data from the debug values directly into matlab, to do a little data analysis (that perversion is what happens when you study engineering). I wonder if somebody better than me in matlab or multiwii serial protocol can help me. The matlab code is fairly simple c=serial('/d...

I will try to answer. Please more experienced developers correct me. Your questions refer to the old-stile Alex PID controller. The PID works in three possible modes. The standard ACRO mode, ANGLE_MODE and HORIZON_MODE. HORIZON mode is actually only a combination of the other two (and i will not dis...

I implemented the change as follows in Multiwii.cpp i modified the baro code: #if BARO && (!defined(SUPPRESS_BARO_ALTHOLD)) /* Smooth alt change routine , It's slowly increase/decrease * altitude proportional to stick movement (+/-100 throttle gives about +/-50 cm in 1 second with cycle time...

Global trust due to THROTTLE is something which is constant whatever axisPID values. Well, that's only partially true, with the new THROTTLE_ANGLE_CORRECTION the trust depend on the angle. and even more, throttle angle correction and althold work on rcCommand[THROTTLE] directly, in separate part of...

It is bugging me a little bit how rcCommand[THROTTLE] is used both for the RC input and for the throttle output. To the point that correction on the throttle are done like rcCommand[THROTTLE]+= throttleAngleCorrection; Wouldn't it be more coherent with the rest of the code to have a value axisPID[TH...

At the moment is possible to vary the altitude by setting a temporary new altitude via the throttle stick. This is than taken by the Proportional part and give an effective throttle variation. Now, i believe that is not the best implementation, due to noise in baro signal the alt P is quite small. M...

Yep.. i suspected so. I will test the actual code a deeply and see if it needs improvement

yes- i have same GUI overflow. Wasn't sure if it was just me as I was running it within processing - on win7 How the fuk do you people manage to get 100s of com ports in your system? Is this something FTDI drivers do? (luckily I never had more than one FTDI dongle). And why are they all appearing a...

Hi everybody. Well, let's just say that i started flying around last month, but i have some experience in arduino coding (and that's why i got to use multiwii). I like the job that has been done with multiwii and i hope to be helpful in the future. I was reading trough the Altitude hold code as of r...