Hi, I'm very new to Labview(first post here) and am learning by trying some simple things. I'm trying to create a continuous running traffic light system, RED, THEN RED AND AMBER, THEN JUST GREEN, THEN JUST AMBER, THEN JUST RED, and repeat the sequence. I've got 3 LED's of the 3 colours and at the moment they run, RED, THEN RED AND AMBER, THEN RED AND AMBER AND GREEN, THEN ALL OFF, and the sequence then repeats. I've used a case structure within a while loop. Set a state for each colour and the reset(all off). Straight forward I think. Does anyone have any tips on how i might add to what I've got to create the aforementioned traffic light sequence? Many thanks for your time. PJ.

You have passed the test, so I will attach the VI this time (LV9, let me know if you need an earlier version). You'd be surprised how many people will complain about not being provided code, glad to see you are a good sport. The cluster array constant was created by right-clicking the control and choosing Create Constant. It simply let me show in a screenshot the contents of the Sequence Array. I added the delay as a little hint to always be thinking one move ahead. Eventually you will be thinking many more moves ahead, but start out by considering the next thing you'll want to do and try to keep your code flexible enough to handle it.