Search found 59 matches
- Mon Mar 16, 2015 5:51 am
- Forum: General discussions
- Topic: Water-"proofing" the crazyflie
- Replies: 10
- Views: 6986
Re: Water-"proofing" the crazyflie
Water contact and LiPo is a dangerous game and submerging the antenna will always cause you to drop signal no matter what. Water is pretty much opaque for our radios. I'd suggest a shell that clamps together with a rubber seal between the halves for anyone looking to go near anything wetter than a d...
- Tue Mar 10, 2015 3:47 am
- Forum: Developer Discussions
- Topic: Problems with Alititude Hold Program
- Replies: 5
- Views: 4171
Re: Problems with Alititude Hold Program
You're going to need to delve into the code and roll your own solution for what you want. You have to continually send the hold command because it has a failsafe against radio loss from what I've seen. A simple loop that calls the altitude hold function should work for you.
- Mon Mar 09, 2015 7:32 pm
- Forum: Developer Discussions
- Topic: Problems with Alititude Hold Program
- Replies: 5
- Views: 4171
Re: Problems with Alititude Hold Program
Altitude hold uses the barometer currently. Autoland would use a linear decrease in the barometer altitude setpoint until decreasing thrust is forced to 0 without altitude changing. Happy coding!
- Mon Mar 09, 2015 7:28 pm
- Forum: General discussions
- Topic: Get linear velocities from accelerometers
- Replies: 8
- Views: 6042
Re: Get linear velocities from accelerometers
We aren't calling you stupid, just trying to get to the root of your problem. I didn't understand how acceleration, velocity, and position related to each other mathematically for a very long time. Those basic equations are all sorts of useful when it comes to quads, but our codebase isn't as mature...
- Sun Mar 08, 2015 12:15 am
- Forum: Support
- Topic: [SOLVED] CF 2.0 not restarting in firmware mode
- Replies: 28
- Views: 25836
Re: CF 2.0 not restarting in firmware mode after flashing
Are you using the proper toolchain? The CF1 requires a 4.7 arm-none-eabi toolchain while the CF2 was moved to 4.9 from what I can tell. They aren't interchangable based on my testing, even if it builds properly.
- Sun Mar 08, 2015 12:09 am
- Forum: Support
- Topic: roll pitch yaw calibration
- Replies: 13
- Views: 11268
Re: roll pitch yaw calibration
Propeller guards do what they say and no more, guard the props. This seems to be a solder issue with the IMU, and crashes and bumps seem to be the common factor. I'm going to let one of the BitCraze guys take it from here, because this seems to come down to how well the chips are soldered on. The du...
- Sat Mar 07, 2015 7:28 am
- Forum: Developer Discussions
- Topic: CLOAD details
- Replies: 5
- Views: 3545
Re: CLOAD details
Ok, I'm finding the relevant bits now. If I'm not mistaken, our .ld is misnamed, mentioning only 32K flash. I believe it's flashing for 128K. I've opened up the matching .ld in cleanflight and found this for memory defs: /* Specify the memory areas. Flash is limited for last 2K for configuration sto...
- Sat Mar 07, 2015 5:39 am
- Forum: General discussions
- Topic: Get linear velocities from accelerometers
- Replies: 8
- Views: 6042
Re: Get linear velocities from accelerometers
Hi poisone, I think it's a little bit more tricky, accelerometers measure some specific acceleration that includes the gravitational acceleration. It seems for me that we have to manipulate the measures from the accelerometer along with the readings of the angular rates to get the acceleration. In ...
- Sat Mar 07, 2015 5:26 am
- Forum: Support
- Topic: roll pitch yaw calibration
- Replies: 13
- Views: 11268
Re: roll pitch yaw calibration
This looks similar to a few crazy values people have been posting that end up being IMU issues. Have you crashed much since you got it? Also, is there any drift other than yaw drift? I also have to wonder if the IMU is getting a bit hot and causing the errors and loss of alignment. Perhaps they need...
- Sat Mar 07, 2015 3:12 am
- Forum: General discussions
- Topic: Crazyflie 2.0 stunt video
- Replies: 11
- Views: 7986
Re: Crazyflie 2.0 stunt video
Now learn them vertically instead of horizontally. I'm excited to learn some acrobatics with mine like this.