SDK

The Tello SDK connects to the aircraft through a Wi-Fi UDP port, allowing users to control the drone with text commands

ARCHITECTURE

Use Wi-Fi to establish communication between Tello and PC, Mac or Mobile device

• Send Command & Receive Response

• Receive Tello State

• Receive Tello Video Stream

Command	Description	Possible Response
command	entry SDK mode	ok / error
takeoff	Tello auto takeoff	ok / error
land	Tello auto land	ok / error
streamon	Set video stream on	ok / error
streamoff	Set video stream off	ok / error
emergency	Stop all motors inmediately	ok / error
up x	Tello fly up with distance x cm (20-500)	ok / error
down x	Tello fly down with distance x cm (20-500)	ok / error
left x	Tello fly left with distance x cm (20-500)	ok / error
right x	Tello fly right with distance x cm (20-500)	ok / error
forward x	Tello fly forward with distance x cm (20-500)	ok / error
back x	Tello fly back with distance x cm (20-500)	ok / error
cw x	Tello rotate x degree clockwise x (1-3600)	ok / error
ccww x	Tello rotate x degree counter-clockwise x (1-3600)	ok / error
flip x	Tello fly flip x l - left r - right f - forward b - back	ok / error
go x y z speed	Tello fly to x y z in speed (cm/s) (xyz: 20 -500, speed: 10-500)	ok / erro
curve x1 y1x2 y2 z2 speed	Tello fly a curve defined by the current and two given coordinates with speed (cm/s) If the arc radius is not within the range of 0.5-10 meters, it responses false	ok / error

For more details go to SDK Page

https://dl-cdn.ryzerobotics.com/downloads/tello/20180910/Tello SDK Documentation EN_1.3.pdf