Temperature calibrated IMU test flights

Testing the temperature calibrated IMUs. On the 40 minutes of test flights the horizon was ok for me over 95% of the time (estimate, but it was ok) . On some situations like at the start of the video, or flying fast sideways and yawing to flight direction etc. movements temporally disturbed the Horizon, but it was soon levelled.

On these flights ‘skip the gyro calibration at startup’ was used.

This test platform is for GoPro, it is with Avroto 2814 motors and Maytech 40A Slim ESC with BLHeli FW. The flight time with 4S 5000 mA battery was a bit more than 10 minutes and 3850 mA went in, so maybe some 12 minutes max flight time. It is a foldable design and really compact when folded.

The gimbal is between propellers and the yaw is pretty special construction and with an encoder that gives reference to the frame. i.e. the gimbal follows the frame. At the start of the video when starting the motors, the gimbal moves to right, that is because it follows also yaw stick. There is still some tuning to do, now there is some bounce back after long yaws.

The yaw potentiometer modification is explained
here and some more videos also.

Next aerial platform/gimbal project is similar platform for panasonic LX100 sized cameras with T-Motor U5 and 16" propellers.