This module is written and developed by Q.Z.Lin. It can realize the programming of Tello drone directly using python language without needing to Tedious configuration. The following is the use of instructions: 1. Make sure python is installed or visit www.python.org to install 2. Create a new python program and use "import tello" to import the module 3, start programming! Please note: You need to have a certain python language base for programming! * * * * * * Function list: take_off() takes off land() landing up(distance) rise down(distance) decline left(distance) turn left right(distance) turn right forward(distance) forward back (distance) back cw(angle) clockwise rotation ccw(angle) rotates counterclockwise flip(direction) flip set_speed(speed) setting speed **the unit of distance is centimeter