too muchsimplesi wrote:Lovely
How much did it cost?
off course it have a gyro and acc.Fluo wrote:stupid question have you got a gyroscope and accelerometer? If yes the quadrocopter requires some works with config of gyro
No!simplesi wrote:I'm thinking that the RPi is simply being used as a WiFi remote receiver to a standard Quadcopter?
I think we'd all thought that you managed to get the RPi to do all the real-time motor balancing
The program runs like every other program, and by now there are no special privileges or so. I thought about using a special scheduling group (https://github.com/raspberrypi/linux/bl ... -group.txt) but by now i never had problems without. So it will run in normal mode until i get problems (I want to try using a camera and OpenCV for navigation without GPS, http://en.wikipedia.org/wiki/OpenCV).noudio wrote:Cool! Very cool!
Does the program just normally run as any other program, or did you do special things on the Pi to ensure your program remains responsive?. For example special kernel privileges/nice/using interrupts...?
How on earth did you get Brushless motors to work?!Marlon G. wrote:So here is the Video from today:
It is much better, but it was not the best flight from today, unfortunately it is the only video we made.
A little bit about the Hardware:
- 4x Robbe Roxxy 2827/34 Brushless Motor
- 4x BL-Ctrl V1.2 (http://mikrokopter.de/ucwiki/en/BL-Ctrl_V1.2)
- Raspberry Pi
- Arduino+RFM12 for Radio transmission over ttyUSB0
-MPU6050 Motion Sensor (Gyro+Acc)
-3-Axis Digital Compass HMC5883L (not in use)
-ublox5 GPS (not in use)
-WiFi Dongle to ssh into the RPi (I tried to use it for Radio control but that do not work very good)
Hardware that should be add:
-5x Ultrasonic Rangesensor
- maybe new Radio system with Xbee Pro
The Software is mostly written by my own and so most Parameter (like PID) are not compareable to other Quadrotors.
The Software reads the Sensordata with 300hz-500hz and controls the Motors with 50hz.
Most of the time the Software waits for Sensordata because I²C is "slow". The actual computation takes barely no time (everything with floating point Numbers).