siruami

I agree with hooovahh because I actually need that feature, I will try to add it myself first after all this good thoughts you guys have shared with me and I do appreciate them. Thanks for the VI jcarmody, with my short experience in labview this is gold for me, I think I wont figure it out by myself in weeks, maybe months. I will review and modify to my needs and post back as soon as I can. Thanks a lot, I really appreciate you guys thoughts and help.

Hi all. I am completely new to LabView, I have version 8.5. I am trying to desing a VI that will measure reaction times given a visual stimulus, so I though in big LED that will turn on randomly, like every 2-4 seconds, but random and then the user will turn it off with one button. I have been playing with the random numbers, loops, LEDs, shift register, etc... and I have some pieces but can't get to what I want which is what I have stated above, so I will appreciate your help a lot. The Idea is so simple, once the VI starts, a LED will turn on randomly between 2 to 4 seconds between each blink, but when it turns on, I want the user to turn it off by pressing a button, once the button is pressed the random timer (2 to 4 seconds) starts again until the LED turns on again and the user turns it off and like that continuously for a number of times, I think I can resolve the total number of times this will run, add time stamps from the time blinks to the button is pressed and measure time, add a start button and everything else, I am just stuck with this of the LED turning on and off. Thanks in advance for your help. Again: version 8.5, thanks.