Xiaomi Yi camera stabilizer for drone ZMR F450

thingiverse

This is a two degree of freedom drone stabilizer for Xiaomi Yi camera. It is intended for a ZMR F450 type frame and uses two SG-90 servos to run. In my case, I used a microcontroller (Atmega 2560 but could be another) that takes measurements from an IMU (MPU6050) to modulate the PWM signal that drives the servos and counteracts the drone's tilts. NOTE: The program code I have used will be available in a repository in the future. Materials needed to build the stabilizer: • 3x M4 metric countersunk head screws (2 screws of 12 mm and one of 20 mm approximately) and nuts • 4x M2 metric screws (1 cm long approx.) and nuts to hold the servos • 2x SG-90 type servos Materials that I have used to make it work: • Microcontroller (In this case ATmega 2560 provided by an Arduino Mega) • Connection cables • IMU (In this case an MPU6050 module was used) If stabilization is not desired, the servo motors could be connected directly to auxiliary channels of a radio receiver to set fixed camera angles in both axes (Roll and Pitch) I have printed it with PLA. It is necessary to use supports in some parts of the pieces. TIP: The adjustment with the servo arms should be quite exact, even so, to prevent the bridge from coming out, it is advisable to place a drop of hot silicone before inserting it into position.