## Another Ar Drone Question

Hey there guys!

Went through the manual, but couldn't find the following:

Trying to understand how do the AR drone variables \$X and \$Y work exactly....?

Thanks, Roi.

Your robot can be more than a simple automated machine with the power of ARC Pro!

United Kingdom
#1

What are the \$X and \$Y? I can't see any reference to any AR drone variables on anything and none show up in the variable watcher with any drone controls added...

#2

Hey Rich, You have first to connect to the drone, before the variables show up.

There are: \$DronePsi (Z axis angle), \$DroneTheta (forward backward angle), \$DroneAlt (altitude in mm) and \$DronePhi (Roll angle), which as you see, i think i could figure out more or less how they function, but \$X and \$Y seem to avoid me....

United Kingdom
#3

Ah right, I don't have a drone to connect so I can't really help.

Just a few thoughts of what it could be (however wait for someone else to chime in if they know). Doesn't the AR Drone have sensors for velocity? X being the velocity on the X axis and Y being velocity on the Y axis? Add the variable watcher and see what happens when you fly it around?

#4

Hmmm....a very good idea!

How come i didn't think of velocity but only of positioning?

Shall check it out very soon!

Thanks a lot!

#5

Hey there Rich or anyone who can help answering this question!

I was not able to affirm that the \$X and \$Y are velocity variables, although i was looking at them while the drone was moving. The numbers just jump with no pattern that i was able to link with velocity indication.

Does anyone know, what and how these variable represent?

Thanks, Roi.

PRO
Synthiam
#6

I think he means \$DroneX and \$DroneY and \$DroneZ?

#7

Yes! Sorry! \$DroneX and \$DroneY and \$DroneZ !

It appears only when the drone is connected, i have a short memory, so some 5 min elapse after i end the flying session and write a question....LOL

What do the \$DroneX and \$DroneY and \$DroneZ stand for?

Thanks.