So my quad is flying reasonably well, but I need some help with PID tuning. Is there a good post somewhere explaining how to go about adjusting the PID values to improve the stability of the quad?
See this video: http://www.vimeo.com/19506341
You can see the oscillations at about 9 seconds in. I'm glad I was close to the ground because it surely would have crashed if I was up any higher. Obviously there are some stability issues.
I have the full electronics package including APM, IMU, mag, & GPS. This was in stable mode running X configuration with the IMU pointing forward between the two front motors. Total weight is 1075 grams.
Any suggestions regarding PID tuning would be appreciated.