motion control with joystich

[Mar-Q]

hi every one I'm tring to contol the nxt using joystich i'm doing a simple program but i have aproblem

with the first vi the nxt response for x- axis values with out y- axis values the problem is that it the 2 cases are not working in parallel!!

how ca i use only one case structer

i have tried the vi avilable in ni about the joystick motion control but i coldn't find a solution !!

the second is working but the nxt movement is not same as the joy stick position

(my lab view version is 8.2)

please any help!!

[Mar-Q]

Any help pleas !!

[Mar-Q]

any idea please

[MikeS81]

Hi Mar-Q,
change your first example a little bit. Remove the variables, you don´t need them. Calculate first the x and y value and connect then this values directly to your motor vi´s. If you do it, you have the correct flow and it should work.

Mike

[Mar-Q]

Hi mike

thank you, but hou can i control the power and direction by calculations?

thanks

[MikeS81]

Hi Mar-Q,

i think the direction results from the direction you press the joystick key, and the power depend on how strong you press the key (if it is possible), if not you can measure the time how long the key is already pressed and depending on that you calcualte the power.

Mike