Hello Tello Pilot!
Join our DJI Tello community & remove this banner.
Sign up

Positioning sensors

Nader

Member
Joined
Sep 3, 2018
Messages
6
Reaction score
1
Hi there,
When the tello is on and I look at the two black sensors on the underside of the tello only one is lit red. Shouldn't both of the sensors be on/red?
Regards/Nader
 

Javi074

Well-known member
Joined
Aug 24, 2018
Messages
59
Reaction score
25
Location
North of Spain
I think that it is a "flight time sensor". One sensor send a infrared light pulse against the ground and measures the time needed to reach the non-iluminated sensor. Knowing the time to reach the ground and again to the tello it is possible to deduce the altitude.
 
  • Like
Reactions: Nader

Nader

Member
Joined
Sep 3, 2018
Messages
6
Reaction score
1
Uh, right! Thanks for the clarification.
 

New Threads

Forum statistics

Threads
3,233
Messages
24,999
Members
8,332
Latest member
Chris22