MultiWii

The RC rate is 0.75 and 0.65 expo, I've also tried bumping up the level P and I while decreasing RC rate to 0.2 and it makes level a bit better but can crash a bit. My test is if I move the right stick 50-75% to the right and let go to see what happens, this is my worst case scenario because I fly w...

Thanks Ed,the heading didn't change by much, 1-2 degrees but the mag r/p/y does change a little (jumps by 10-30 very quickly) when revving the motors. I checked the heading briefly whilst in the air and it didn't deviate by much. I ended up decreasing the P in PosR/NavR to 1.4 and D to 0.01, it's mo...

So I've got the i2c gps to work but having problems with position hold, it goes in circles, wobbles and crashes sometimes. Trying to play around with the PIDs. Found there is a lead filter (enabled) and gps filter (disabled) option in multiwii and in the i2c gps code too (both enabled), which one do...

Hi Ed, I'm new to altitude hold myself and have only tried it once. I basically set the PID to be the same as my auto level settings and I briefly tested it outside close to the ground, it does fluctuate a bit but it's probably only by 3-4m so I'll need to try tuning a bit later though at no time di...

I'm just curious, when you run avr-size on the multiwii elf file how much bytes of data and bss do you have? I know it's not the real way to tell but just something that will give us a ball park figure. I'm also going to be adding i2c gps to my multiwii with the baro and mag, it's 80 data and 1669 b...

That's weird, I can change it without issues - for me in this case it's rcValue[4].
Which board are you using? Any special changes to config.h? I'm testing this using an Arduino Pro MIni.

The 0,1,2,3 elements (can go up to 8 elements) in the array also depends on your radio system, so I would take the props off, turn the TX off and try setting the other elements in the array and use the Multiwii GUI to see which element changes which channel.

The rcValue[X] is the array used to store the values that are coming from the RC receiver correct? Yes that's correct How would I take and give back control to the user? I think the best place to change the rcValue would be in the readRawRC function in RX.cpp. Say if you got to close to the ground,...

There are probably lots of ways to do this, I haven't really looked into added those sorts of sensors myself but I have controlled Multiwii by directly manipulating the rcValue[x] in RX.cpp - #define PITCH 0 #define ROLL 1 #define YAW 2 #define THROTTLE 3 So you could have your own algorithm running...

Took it out to the same place and it happened again, seems to happen when 15-20m high up, I briefly saw the error rate go to 10% - https://www.youtube.com/watch?v=DnfQnG_LS0E

Went to a different park, got up to 30% error without issues. So something is definitely up with the previous location.

Thanks for your reply, I've left throttle as is by default, I'm changing batteries when flying and I don't seem to mind adjusting a little bit to suit each one. I'm arming via aux1 because I did see that you could also arm with yaw and was a little concerned about that so I switched it off and only ...

So things have been fine until yesterday, I was flying it around a big open field and then I got close to the one edge of the field (only 50m away), rotated the quad and then it loses power then 3 seconds later the motors start back up (I put the throttle down and then to max which I think made it s...

I set my PIR PR rate to 0.3 which is sufficient enough for my needs and seems to work good. Although I have had it flip another 2 times, once left and once right. When it flipped, I went home, left it for a few hours, changed the bottom left prop and then 2-3 minutes it happen again, when flying ~1m...

Thanks, I've increased it and I think there's good difference, need to go somewhere with more space to give it a real test.

Thanks for your reply, I'm starting to suspect that it may have been a prop failure as I did crash into a tree a few minutes before but didn't replace any props so I think I'll always inspect them for any white stress points when I crash and replace them, I'll keep monitoring and see how it goes. I'...

Hi all, Wondering if anyone might have some insight as to what happened - I flew for about 20 minutes already without issues, I swapped the battery, ran it for 2-3 minutes and was flying my quadcopter low to the ground in Angle mode (I always stay on Angle mode - I'm a beginner), it was wobbling a l...