This function will calibrate your drone and reset all the trim and biases to best suit the current lighting and ground. The CoDrone has flight biases that change based on lighting and the pattern on the ground. After a while, the CoDrone may begin to drift, especially after a lot of flying or a change of environment. When you run this function, the CoDrone's arms will blink green a few times, take off, calibrate for a few seconds, then land. It may drift a little until it stabilizes before finally landing.