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Hi everyone, I have finally make my quadcopter fly after so many trials :) I changed spinning direction of all motors now they spin cw-ccw-cw-ccw and configured MultiWii (FC) to be in angle mode. This combo made my quadcopter completely stable to fly. I have taken a small video to show you...

Hi and thank you for so many great suggestions. 1) I agree, Madgwick (ARHS with MAG) algorithm is far superior in object orientation tracking then plain complementary filter. I already have working implementation of it in my code and will easily switch back to using it. 2) Ok, so I will try to...

Hi, I'm also investigating possibility that I have error somewhere in my FC code but I not sure where. To be sure I have uploaded MultiWii firmware onto my Arduino Uno board and plan to test it outside again in following days. If it works ok with known FC firmware such is MultiWii than I will...

Hi, I made some progress by following suggestions from guys on other forum. First of all strings tying method that I used to test quadcopter at home was causing lot of trouble. I remove those strings and test it outside. Now I can get it airborne but it flips after second in air and fall to...

Hi all, I have builded my first DIY quadcopter and have some unresolved issues with it. Unfortunately it is not stable enough to hover and fly. Quad begins to overcompensate and lose control very quickly if given higher throttle (30% throttle or more). Total weight of quad is around 1,5kg...