RGB Led Project - Help

You seem to have commented out the line cycle = setInterval(doLights,50);

I guess it was failing because you moved the definition of doLights to be after the command, where it was before? Just put the line cycle = setInterval(doLights,50); after you defined doLights.

If you get an error and comment stuff out, can say in the future? It can save a lot of time.

Also, if you want code to show up in the forum properly, you need to highlight it and click the </> code button - I've just done that for you above.