Delay vs Timer

Hi WumblingBorkeys,

In general it isn't considered good practice to use delays like this and a non-blocking timer is better.  The delay function can work if the application is simple enough but might as well do it right, especially if there more code and activity to be added.  A couple of observations:

The while(1) is not necessary to set up an infinite loop with Arduino.  The void loop() above it is already doing that.

void loop() {
    while (1)

Also, take care waiting in the function "void section1()" using the while statement for the player to reset the trigger.  If timers aren't being used this would also be blocking code.  Accordingly, if there is more than one player, they could advance without setting off laser switches.

Thanks, as you can tell it's been a minute since I've programmed anything useful...

You are welcome.  I'm sure there would be interest if you post the outcome of your project when you are finished.  Feel free to post a new question in the forum if needed.

Well, I've gone ahead and redone most of the program trying to implement wait timers instead of delays, It works great for 30 seconds, and then something breaks... It's an older board like 5-10 years, Arduino Uno REV3. It fails in any state (see below) and quits printing "if 5" & "if 7" as it would normally every 15~ state prints.

I've run it multiple times each with a different tripcount, and even tried not incrementing/tripping any sensors till 1minute+ it would change states once and then continue printing the same state... is there something I've missed?

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22:27:22.747 -> 2
22:27:22.795 -> 2
22:27:22.795 -> 2
22:27:22.840 -> 2
22:27:22.840 -> 2
22:27:22.914 -> 2
22:27:22.914 -> 2
22:27:22.914 -> 2
22:27:22.935 -> 2
22:27:22.981 -> 2
22:27:22.981 -> 2
22:27:23.027 -> 2
22:27:23.027 -> 2
22:27:23.074 -> 2
22:27:23.074 -> if 5
22:27:23.074 -> if 7
22:27:23.074 -> 2
22:27:23.120 -> 2
22:27:23.120 -> 2
22:27:23.165 -> 2
22:27:23.165 -> 2
22:27:23.210 -> 2
22:27:23.210 -> 2
22:27:23.255 -> 2
22:27:23.302 -> 2
22:27:23.302 -> 2
22:27:23.347 -> 2
22:27:23.347 -> 2
22:27:23.394 -> 2
22:27:23.394 -> 2
22:27:23.442 -> 2
22:27:23.442 -> 2
22:27:23.489 -> 2
22:27:23.489 -> if 5
22:27:23.489 -> if 6
22:27:23.489 -> 0
22:27:23.535 -> 0
22:27:23.535 -> 0
22:27:23.580 -> 0
22:27:23.580 -> 0
22:27:23.627 -> 0
22:27:23.627 -> 0
22:27:23.674 -> 0
22:27:23.674 -> 0
22:27:23.721 -> 0
22:27:23.721 -> 0
22:27:23.769 -> 0
22:27:23.769 -> 0
22:27:23.816 -> 0
22:27:23.816 -> 0
22:27:23.863 -> 0
22:27:23.863 -> 0
22:27:23.920 -> 0
22:27:23.920 -> 0
22:27:23.957 -> 0
22:27:23.957 -> 0
22:27:24.005 -> 0
22:27:24.005 -> if 1
22:27:24.005 -> 1
22:27:24.052 -> 1
22:27:24.052 -> 1
22:27:24.099 -> 1
22:27:24.099 -> 1
22:27:24.146 -> if 2
22:27:24.146 -> if 3
22:27:24.146 -> 2
22:27:24.146 -> 2
22:27:24.191 -> 2
22:27:24.238 -> 2
22:27:24.238 -> 2
22:27:24.285 -> 2
22:27:24.285 -> 2
22:27:24.331 -> 2
22:27:24.331 -> 2
22:27:24.378 -> 2
22:27:24.378 -> 2
22:27:24.424 -> 2
22:27:24.424 -> 2
22:27:24.470 -> 2
22:27:24.470 -> 2
22:27:24.517 -> 2
22:27:24.517 -> 2
22:27:24.517 -> if 5
22:27:24.517 -> if 7
22:27:24.562 -> 2
22:27:24.562 -> 2
22:27:24.607 -> 2
22:27:24.607 -> 2
22:27:24.654 -> 2
22:27:24.654 -> 2
22:27:24.701 -> 2
22:27:24.701 -> 2
22:27:24.748 -> 2
22:27:24.748 -> 2
22:27:24.795 -> 2
22:27:24.795 -> 2
22:27:24.842 -> 2
22:27:24.842 -> 2
22:27:24.928 -> 2
22:27:24.928 -> 2
22:27:24.932 -> 2
22:27:24.932 -> if 5
22:27:24.932 -> if 7
22:27:24.978 -> 2
22:27:24.978 -> 2
22:27:25.025 -> 2
22:27:25.025 -> 2
22:27:25.073 -> 2
22:27:25.073 -> 2
22:27:25.118 -> 2
22:27:25.118 -> 2
22:27:25.165 -> 2
22:27:25.165 -> 2
22:27:25.213 -> 2
22:27:25.213 -> 2
22:27:25.261 -> 2
22:27:25.261 -> 2
22:27:25.308 -> 2
22:27:25.308 -> 2
22:27:25.353 -> 2
22:27:25.353 -> if 5
22:27:25.353 -> if 7
22:27:25.353 -> 2
22:27:25.401 -> 2
22:27:25.401 -> 2
22:27:25.446 -> 2
22:27:25.446 -> 2
22:27:25.491 -> 2
22:27:25.491 -> 2
22:27:25.536 -> 2
22:27:25.536 -> 2
22:27:25.581 -> 2
22:27:25.627 -> 2
22:27:25.627 -> 2
22:27:25.675 -> 2
22:27:25.675 -> 2
22:27:25.722 -> 2
22:27:25.722 -> 2
22:27:25.767 -> 2
22:27:25.767 -> if 5
22:27:25.767 -> if 6
22:27:25.767 -> 0
22:27:25.814 -> 0
22:27:25.814 -> 0
22:27:25.859 -> 0
22:27:25.859 -> 0
22:27:25.932 -> 0
22:27:25.932 -> 0
22:27:25.932 -> 0
22:27:25.955 -> 0
22:27:26.002 -> 0
22:27:26.002 -> 0
22:27:26.047 -> 0
22:27:26.047 -> if 1
22:27:26.047 -> 1
22:27:26.092 -> 1
22:27:26.092 -> 1
22:27:26.137 -> 1
22:27:26.137 -> 1
22:27:26.137 -> if 2
22:27:26.183 -> if 3
22:27:26.183 -> 2
22:27:26.183 -> 2
22:27:26.228 -> 2
22:27:26.275 -> 2
22:27:26.275 -> 2
22:27:26.320 -> 2
22:27:26.320 -> 2
22:27:26.367 -> 2
22:27:26.367 -> 2
22:27:26.412 -> 2
22:27:26.412 -> 2
22:27:26.460 -> 2
22:27:26.460 -> 2
22:27:26.505 -> 2
22:27:26.505 -> 2
22:27:26.550 -> 2
22:27:26.550 -> 2
22:27:26.550 -> if 5
22:27:26.550 -> if 7
22:27:26.596 -> 2
22:27:26.596 -> 2
22:27:26.642 -> 2
22:27:26.642 -> 2
22:27:26.688 -> 2
22:27:26.688 -> 2
22:27:26.735 -> 2
22:27:26.735 -> 2
22:27:26.781 -> 2
22:27:26.781 -> 2
22:27:26.827 -> 2
22:27:26.873 -> 2
22:27:26.873 -> 2
22:27:26.943 -> 2
22:27:26.943 -> 2
22:27:26.943 -> 2
22:27:26.964 -> 2
22:27:26.964 -> if 5
22:27:26.964 -> if 7
22:27:27.013 -> 2
22:27:27.013 -> 2
22:27:27.058 -> 2
22:27:27.058 -> 2
22:27:27.106 -> 2
22:27:27.106 -> 2
22:27:27.153 -> 2
22:27:27.153 -> 2
22:27:27.198 -> 2
22:27:27.198 -> 2
22:27:27.244 -> 2
22:27:27.244 -> 2
22:27:27.290 -> 2
22:27:27.290 -> 2
22:27:27.335 -> 2
22:27:27.335 -> 2
22:27:27.382 -> 2
22:27:27.382 -> if 5
22:27:27.382 -> if 7
22:27:27.382 -> 2
22:27:27.429 -> 2
22:27:27.429 -> 2
22:27:27.475 -> 2
22:27:27.475 -> 2
22:27:27.521 -> 2
22:27:27.566 -> 2
22:27:27.566 -> 2
22:27:27.612 -> 2
22:27:27.612 -> 2
22:27:27.659 -> 2
22:27:27.659 -> 2
22:27:27.706 -> 2
22:27:27.706 -> 2
22:27:27.753 -> 2
22:27:27.753 -> 2
22:27:27.798 -> 2
22:27:27.798 -> if 5
22:27:27.798 -> if 7
22:27:27.798 -> 2
22:27:27.845 -> 2
22:27:27.845 -> 2
22:27:27.890 -> 2
22:27:27.890 -> 2
22:27:27.947 -> 2
22:27:27.947 -> 2
22:27:27.983 -> 2
22:27:27.983 -> 2
22:27:28.029 -> 2
22:27:28.029 -> 2
22:27:28.076 -> 2
22:27:28.076 -> 2
22:27:28.124 -> 2
22:27:28.124 -> 2
22:27:28.169 -> 2
22:27:28.169 -> 2
22:27:28.216 -> if 5
22:27:28.216 -> if 6
22:27:28.216 -> 0
22:27:28.216 -> 0
22:27:28.264 -> 0
22:27:28.311 -> 0
22:27:28.311 -> 0
22:27:28.358 -> 0
22:27:28.358 -> 0
22:27:28.404 -> 0
22:27:28.404 -> 0
22:27:28.449 -> 0
22:27:28.449 -> 0
22:27:28.495 -> 0
22:27:28.495 -> 0
22:27:28.540 -> 0
22:27:28.540 -> 0
22:27:28.587 -> 0
22:27:28.587 -> 0
22:27:28.633 -> 0
22:27:28.633 -> 0
22:27:28.681 -> 0
22:27:28.681 -> 0
22:27:28.728 -> 0
22:27:28.728 -> 0
22:27:28.773 -> 0
22:27:28.773 -> 0
22:27:28.820 -> 0
22:27:28.820 -> 0
22:27:28.865 -> 0
22:27:28.865 -> 0
22:27:28.954 -> 0
22:27:28.954 -> 0
22:27:28.960 -> 0
22:27:29.007 -> 0
22:27:29.007 -> 0
22:27:29.007 -> 0
22:27:29.054 -> 0
22:27:29.099 -> 0
22:27:29.099 -> 0
22:27:29.147 -> 0
22:27:29.147 -> 0
22:27:29.193 -> 0
22:27:29.193 -> 0
22:27:29.238 -> 0
22:27:29.238 -> 0
22:27:29.284 -> 0
22:27:29.284 -> 0
22:27:29.331 -> 0
22:27:29.331 -> 0
22:27:29.378 -> 0
22:27:29.378 -> 0
22:27:29.423 -> 0
22:27:29.423 -> 0
22:27:29.470 -> 0
22:27:29.470 -> 0
22:27:29.517 -> 0
22:27:29.517 -> 0
22:27:29.564 -> 0
22:27:29.564 -> 0
22:27:29.609 -> 0
22:27:29.609 -> 0
22:27:29.656 -> 0
22:27:29.656 -> 0
22:27:29.701 -> 0
22:27:29.746 -> 0
22:27:29.746 -> 0
22:27:29.794 -> 0
22:27:29.794 -> 0
22:27:29.840 -> 0
22:27:29.840 -> 0
22:27:29.888 -> 0
22:27:29.888 -> 0
22:27:29.961 -> 0
22:27:29.961 -> 0
22:27:29.961 -> 0
22:27:29.983 -> 0
22:27:30.029 -> 0
22:27:30.029 -> 0
22:27:30.074 -> 0
22:27:30.074 -> 0
22:27:30.119 -> 0
22:27:30.119 -> 0
22:27:30.164 -> 0
22:27:30.164 -> 0
22:27:30.210 -> 0
22:27:30.210 -> 0
22:27:30.254 -> 0
22:27:30.254 -> 0
22:27:30.300 -> 0
22:27:30.346 -> 0
22:27:30.346 -> 0
22:27:30.393 -> 0
22:27:30.393 -> 0
22:27:30.439 -> 0
22:27:30.439 -> 0
22:27:30.485 -> 0
22:27:30.485 -> 0
22:27:30.532 -> 0
22:27:30.532 -> 0
22:27:30.577 -> 0
22:27:30.577 -> 0
22:27:30.624 -> 0
22:27:30.624 -> 0
22:27:30.671 -> 0
22:27:30.671 -> 0
22:27:30.718 -> 0
22:27:30.718 -> if 1
22:27:30.718 -> 1
22:27:30.765 -> 1
22:27:30.765 -> 1
22:27:30.812 -> 1
22:27:30.812 -> 1
22:27:30.812 -> if 2
22:27:30.860 -> if 3
22:27:30.860 -> 2
22:27:30.860 -> 2
22:27:30.907 -> 2
22:27:30.907 -> 2
22:27:30.964 -> 2
22:27:30.964 -> 2
22:27:31.000 -> 2
22:27:31.000 -> 2
22:27:31.048 -> 2
22:27:31.048 -> 2
22:27:31.095 -> 2
22:27:31.095 -> 2
22:27:31.142 -> 2
22:27:31.142 -> 2
22:27:31.189 -> 2
22:27:31.189 -> 2
22:27:31.236 -> 2
22:27:31.236 -> if 5
22:27:31.236 -> if 7
22:27:31.236 -> 2
22:27:31.284 -> 2
22:27:31.284 -> 2
22:27:31.330 -> 2
22:27:31.375 -> 2
22:27:31.375 -> 2
22:27:31.421 -> 2
22:27:31.421 -> 2
22:27:31.469 -> 2
22:27:31.469 -> 2
22:27:31.516 -> 2
22:27:31.516 -> 2
22:27:31.561 -> 2
22:27:31.561 -> 2
22:27:31.609 -> 2
22:27:31.609 -> 2
22:27:31.655 -> 2
22:27:31.655 -> if 5
22:27:31.655 -> if 7
22:27:31.655 -> 2
22:27:31.702 -> 2
22:27:31.702 -> 2
22:27:31.749 -> 2
22:27:31.749 -> 2
22:27:31.796 -> 2
22:27:31.796 -> 2
22:27:31.843 -> 2
22:27:31.843 -> 2
22:27:31.890 -> 2
22:27:31.890 -> 2
22:27:31.976 -> 2
22:27:31.976 -> 2
22:27:31.976 -> 2
22:27:31.976 -> 2
22:27:32.029 -> 2
22:27:32.029 -> 2
22:27:32.076 -> if 5
22:27:32.076 -> if 7
22:27:32.076 -> 2
22:27:32.076 -> 2
22:27:32.123 -> 2
22:27:32.123 -> 2
22:27:32.168 -> 2
22:27:32.213 -> 2
22:27:32.213 -> 2
22:27:32.258 -> 2
22:27:32.258 -> 2
22:27:32.303 -> 2
22:27:32.303 -> 2
22:27:32.350 -> 2
22:27:32.350 -> 2
22:27:32.398 -> 2
22:27:32.398 -> 2
22:27:32.447 -> 2
22:27:32.447 -> 2
22:27:32.447 -> if 5
22:27:32.447 -> if 7
22:27:32.495 -> 2
22:27:32.495 -> 2
22:27:32.542 -> 2
22:27:32.542 -> 2
22:27:32.587 -> 2
22:27:32.587 -> 2
22:27:32.633 -> 2
22:27:32.633 -> 2
22:27:32.679 -> 2
22:27:32.679 -> 2
22:27:32.726 -> 2
22:27:32.726 -> 2
22:27:32.773 -> 2
22:27:32.773 -> 2
22:27:32.821 -> 2
22:27:32.821 -> 2
22:27:32.868 -> 2
22:27:32.868 -> if 5
22:27:32.868 -> if 6
22:27:32.868 -> 0
22:27:32.913 -> 0
22:27:32.985 -> 0
22:27:32.985 -> 0
22:27:32.985 -> 0
22:27:32.985 -> 0
22:27:33.051 -> 0
22:27:33.051 -> 0
22:27:33.096 -> 0
22:27:33.096 -> 0
22:27:33.141 -> 0
22:27:33.141 -> 0
22:27:33.186 -> 0
22:27:33.186 -> 0
22:27:33.231 -> 0
22:27:33.231 -> 0
22:27:33.276 -> 0
22:27:33.276 -> 0
22:27:33.323 -> 0
22:27:33.323 -> 0
22:27:33.370 -> 0
22:27:33.370 -> 0
22:27:33.415 -> 0
22:27:33.415 -> 0
22:27:33.461 -> 0
22:27:33.506 -> 0
22:27:33.506 -> 0
22:27:33.552 -> 0
22:27:33.552 -> 0
22:27:33.598 -> 0
22:27:33.598 -> 0
22:27:33.643 -> 0
22:27:33.643 -> 0
22:27:33.688 -> 0
22:27:33.688 -> 0
22:27:33.733 -> 0
22:27:33.733 -> 0
22:27:33.778 -> 0
22:27:33.778 -> 0
22:27:33.824 -> 0
22:27:33.824 -> 0
22:27:33.870 -> 0
22:27:33.870 -> 0
22:27:33.915 -> 0
22:27:33.988 -> 0
22:27:33.988 -> 0
22:27:33.988 -> 0
22:27:34.011 -> 0
22:27:34.057 -> 0
22:27:34.057 -> 0
22:27:34.102 -> 0
22:27:34.102 -> 0
22:27:34.147 -> 0
22:27:34.147 -> 0
22:27:34.193 -> 0
22:27:34.193 -> 0
22:27:34.239 -> 0
22:27:34.239 -> 0
22:27:34.286 -> 0
22:27:34.286 -> 0
22:27:34.333 -> 0
22:27:34.333 -> 0
22:27:34.381 -> 0
22:27:34.381 -> 0
22:27:34.427 -> 0
22:27:34.427 -> 0
22:27:34.474 -> 0
22:27:34.474 -> 0
22:27:34.521 -> 0
22:27:34.521 -> 0
22:27:34.568 -> 0
22:27:34.568 -> 0
22:27:34.615 -> 0
22:27:34.615 -> 0
22:27:34.663 -> 0
22:27:34.663 -> 0
22:27:34.711 -> 0
22:27:34.711 -> 0
22:27:34.759 -> 0
22:27:34.759 -> 0
22:27:34.805 -> 0
22:27:34.805 -> 0
22:27:34.852 -> 0
22:27:34.852 -> 0
22:27:34.899 -> 0
22:27:34.947 -> 0
22:27:34.947 -> 0
22:27:34.947 -> 0
22:27:35.002 -> 0
22:27:35.002 -> 0
22:27:35.038 -> 0
22:27:35.083 -> 0
22:27:35.083 -> 0
22:27:35.129 -> 0
22:27:35.129 -> 0
22:27:35.175 -> 0
22:27:35.175 -> 0
22:27:35.221 -> 0
22:27:35.221 -> 0
22:27:35.268 -> 0
22:27:35.268 -> 0
22:27:35.313 -> 0
22:27:35.313 -> 0
22:27:35.360 -> 0
22:27:35.360 -> 0
22:27:35.406 -> 0
22:27:35.406 -> 0
22:27:35.453 -> 0
22:27:35.453 -> 0
22:27:35.498 -> 0
22:27:35.498 -> 0
22:27:35.543 -> 0
22:27:35.590 -> 0
22:27:35.590 -> if 1
22:27:35.590 -> 1
22:27:35.635 -> 1
22:27:35.635 -> 1
22:27:35.682 -> 1
22:27:35.682 -> 1
22:27:35.682 -> if 2
22:27:35.682 -> if 3
22:27:35.727 -> 2
22:27:35.727 -> 2
22:27:35.774 -> 2
22:27:35.774 -> 2
22:27:35.820 -> 2
22:27:35.820 -> 2
22:27:35.866 -> 2
22:27:35.913 -> 2
22:27:35.913 -> 2
22:27:35.959 -> 2
22:27:35.959 -> 2
22:27:36.015 -> 2
22:27:36.015 -> 2
22:27:36.049 -> 2
22:27:36.049 -> 2
22:27:36.095 -> 2
22:27:36.095 -> if 5
22:27:36.095 -> if 7
22:27:36.141 -> 2
22:27:36.141 -> 2
22:27:36.187 -> 2
22:27:36.187 -> 2
22:27:36.233 -> 2
22:27:36.233 -> 2
22:27:36.279 -> 2
22:27:36.279 -> 2
22:27:36.325 -> 2
22:27:36.371 -> 2
22:27:36.371 -> 2
22:27:36.418 -> 2
22:27:36.418 -> 2
22:27:36.463 -> 2
22:27:36.463 -> 2
22:27:36.509 -> 2
22:27:36.509 -> if 5
22:27:36.509 -> if 7
22:27:36.509 -> 2
22:27:36.555 -> 2
22:27:36.602 -> 2
22:27:36.602 -> 2
22:27:36.647 -> 2
22:27:36.647 -> 2
22:27:36.694 -> 2
22:27:36.694 -> 2
22:27:36.739 -> 2
22:27:36.739 -> 2
22:27:36.784 -> 2
22:27:36.831 -> 2
22:27:36.831 -> 2
22:27:36.877 -> 2
22:27:36.877 -> 2
22:27:36.924 -> 2
22:27:36.924 -> if 5
22:27:36.924 -> if 6
22:27:36.924 -> 0
22:27:36.971 -> 0
22:27:36.971 -> 0
22:27:37.028 -> 0
22:27:37.028 -> 0
22:27:37.063 -> 0
22:27:37.110 -> 0
22:27:37.110 -> 0
22:27:37.155 -> 0
22:27:37.155 -> 0
22:27:37.201 -> 0
22:27:37.201 -> 0
22:27:37.249 -> 0
22:27:37.249 -> 0
22:27:37.295 -> 0
22:27:37.341 -> 0
22:27:37.341 -> 0
22:27:37.388 -> 0
22:27:37.388 -> 0
22:27:37.435 -> 0
22:27:37.435 -> 0
22:27:37.482 -> 0
22:27:37.482 -> 0
22:27:37.528 -> 0
22:27:37.528 -> 0
22:27:37.574 -> 0
22:27:37.621 -> 0
22:27:37.621 -> 0
22:27:37.667 -> 0
22:27:37.667 -> 0
22:27:37.713 -> 0
22:27:37.713 -> 0
22:27:37.759 -> 0
22:27:37.759 -> 0
22:27:37.807 -> 0
22:27:37.855 -> 0
22:27:37.855 -> 0
22:27:37.902 -> 0
22:27:37.902 -> 0
22:27:37.948 -> 0
22:27:37.948 -> 0
22:27:38.035 -> 0
22:27:38.035 -> 0
22:27:38.039 -> 0
22:27:38.039 -> 0
22:27:38.084 -> 0
22:27:38.129 -> 0
22:27:38.129 -> 0
22:27:38.176 -> 0
22:27:38.176 -> 0
22:27:38.223 -> 0
22:27:38.223 -> 0
22:27:38.270 -> 0
22:27:38.270 -> 0
22:27:38.318 -> 0
22:27:38.318 -> 0
22:27:38.365 -> 0
22:27:38.412 -> 0
22:27:38.412 -> 0
22:27:38.459 -> 0
22:27:38.459 -> 0
22:27:38.506 -> 0
22:27:38.506 -> 0
22:27:38.553 -> 0
22:27:38.553 -> 0
22:27:38.598 -> 0
22:27:38.598 -> 0
22:27:38.643 -> 0
22:27:38.691 -> 0
22:27:38.691 -> 0
22:27:38.737 -> 0
22:27:38.737 -> 0
22:27:38.782 -> 0
22:27:38.782 -> 0
22:27:38.828 -> 0
22:27:38.828 -> 0
22:27:38.876 -> 0
22:27:38.923 -> 0
22:27:38.923 -> if 1
22:27:38.923 -> 1
22:27:38.970 -> 1
22:27:38.970 -> 1
22:27:39.044 -> 1
22:27:39.044 -> if 2
22:27:39.044 -> if 3
22:27:39.044 -> 2
22:27:39.044 -> 2
22:27:39.065 -> 2
22:27:39.112 -> 2
22:27:39.112 -> 2
22:27:39.157 -> 2
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22:27:39.390 -> if 5
22:27:39.435 -> if 7
22:27:39.435 -> 2
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22:27:43.738 -> 2

#include <FastLED.h>
#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
//------------------------Lights int-----------------
#define NUM_LEDS 25
#define DATA_PIN 12
#define COLOR_ORDER GRB
#define CHIPSET WS2812B
#define BRIGHTNESS 060
#define VOLTS 5
#define MAX_AMPS 500
CRGB leds[NUM_LEDS];
//-----------------------------------------------------

//--------------timer-----------
int section1Timer;
int timeDelay = 100;
int tripCheck = 400;
//-------------------------------
//1 is tripped zero should be normal
//--------------Laser Int-------------------
const int lasersens1 = 2;
int sensSect1;
int section1Tripped;
const int lasersens2 = 3;
int sensSect2;
int section2Tripped;
const int lasersens3 = 4;
const int lasersens4 = 5;
const int lasersens5 = 6;

//------------------------------------------

//---------------------GI/O-------- mostly not used
const int disablebutton =10;
int disablebuttonstate;
int buttonpresscount =0;
const int resetButton = 9;
int resetButtonState = 0;
int senssec1 = 0;
int tripcount = 0;

// Set the LCD address to 0x27 for a 16 chars and 2 line display
LiquidCrystal_I2C lcd(0x27, 16, 2);


void setup() {
  // put your setup code here, to run once:
 pinMode(lasersens1, INPUT);
 pinMode(lasersens2, INPUT);
 pinMode(lasersens3, INPUT);
 pinMode(lasersens4, INPUT);
 pinMode(lasersens5, INPUT);
 pinMode(resetButton, INPUT);


 
 FastLED.addLeds<CHIPSET, DATA_PIN,COLOR_ORDER>(leds, NUM_LEDS);
 FastLED.setMaxPowerInVoltsAndMilliamps(VOLTS,MAX_AMPS);
 FastLED.setBrightness(BRIGHTNESS);
 FastLED.clear();
 FastLED.show();

  // initialize the LCD
  lcd.begin();
  // Turn on the blacklight and print a message.
  lcd.backlight();

  Serial.begin(9600);
}



void loop() {


 lcd.setCursor(0, 0);
 lcd.print("Times Tripped");
 lcd.setCursor(0, 1);
 lcd.print(tripcount);
//Serial.println("start");
Serial.println(section1Tripped);//denotes state at beginning of cycles

if(section1Tripped == 0) //defualt state
{
  sensSect1 = digitalRead(lasersens1)+ digitalRead(lasersens2);
  //Serial.println(sensSect1);
  if(sensSect1 != 0)
  {
    section1Timer = millis() + timeDelay;
    section1Tripped = 1;//advances state
    Serial.println("if 1");
  }
}
if(section1Tripped == 1 && section1Timer < millis())
{

    Serial.println("if 2");
  if(0 != digitalRead(lasersens1)+ digitalRead(lasersens2))
  {
    section1Timer = millis() + tripCheck;
    triggerLights(1); //tripped state should skip all but the last if statement turns on lights
    section1Tripped = 2;

    Serial.println("if 3");
  }
  else
  {
   section1Tripped = 0; //false trip-(too fast) resets state
   section1Timer = millis() + timeDelay;

    Serial.println("if 4");
  }
}
if(section1Tripped == 2 && section1Timer < millis()) //reset state
 {

    Serial.println("if 5");
  if(digitalRead(lasersens1) + digitalRead(lasersens2) == 0 && 0 == digitalRead(resetButton)) //lasers must be detected aswell as a button depressed
  {
 
    Serial.println("if 6");
    shutOffLights(1);//turns off lights
    section1Tripped = 0;//resets states
  }
  else
  {
    Serial.println("if 7");
   section1Timer = millis() + tripCheck;//continues triped state
  }
 }
}

int triggerLights(int x) //Trigger lights to illuminate those who tripped it
{
switch (x){
  case 1:
  leds[0] = CRGB (255,255,255);
  leds[1] = CRGB (255,255,255);
  leds[2] = CRGB (255,255,255);
  leds[3] = CRGB (255,255,255);
  leds[4] = CRGB (255,255,255);
  FastLED.show();
  tripcount++;
  break;
 case 2:
  leds[5] = CRGB (255,255,255);
  leds[6] = CRGB (255,255,255);
  leds[7] = CRGB (255,255,255);
  leds[8] = CRGB (255,255,255);
  leds[9] = CRGB (255,255,255);
  FastLED.show();
  tripcount++;
  break;
  default:
  break;

}
}
int shutOffLights(int x) //shutoff lights that aren't tripped anymore
{
switch (x){
  case 1:
  leds[0] = CRGB (0,0,0);
  leds[1] = CRGB (0,0,0);
  leds[2] = CRGB (0,0,0);
  leds[3] = CRGB (0,0,0);
  leds[4] = CRGB (0,0,0);
  FastLED.show();
  break;
 case 2:
  leds[5] = CRGB (0,0,0);
  leds[6] = CRGB (0,0,0);
  leds[7] = CRGB (0,0,0);
  leds[8] = CRGB (0,0,0);
  leds[9] = CRGB (0,0,0);
  FastLED.show();
  break;
  default:
  break;

}
}

I suspect it is because the variable section1Timer is "int" while the millis() function is "unsigned long".  The variable section1Timer is probably rolling over after 30 seconds or so while millis() keeps counting.  So, try making time related variables like this: 

unsigned long section1Timer;

After about 50 days an unsigned long variable will roll over.  That can be handled as described here:  https://arduino.stackexchange.com/questions/12587/how-can-i-handle-the-millis-rollover

If you want to get fancy, you can make a state machine as described here:  https://learn.adafruit.com/multi-tasking-the-arduino-part-1/ditch-the-delay?view=all

Hi Frank - I've used timers a lot to do a bit of multitasking. However, that link to the adafruit tutorial is magnificent!!

Thanks for posting that

Neil

:-)

Worked like a charm thanks! I'll work on using a state machine!

I'm finding that adafruit article the complete opposite, really weird. It's a strange pattern they are using. 

It's a strange mix of using the traditional loop() while repeatedly checking if a time has expired (i.e. they are constantly polling). Does the Arduino support timer callback?

If so, then a more normal method would be to set up a timer tick, so that nothing is needed in loop(), and instead everything is event-driven, either a timer event, or an external event (e.g. button-press).

A cut-down method would be to just directly act on the tick, whereas a more complete way would be to add an event to a queue (ordinarily the OS supports that, but the Arduino has a very cut-down OS so I wouldn't expect it).

I'm not mega-familiar with Arduino, so I don't know if the article does it the way it did to work around any specific limitations or issues. In essence, they have taken an understandable loop (which to be fair, is still used in commercial code, even military code), and made it unintuitive to follow code because now you'd need to search every function to see if it actually does anything, when looking at the code in the loop.

Hi Shabaz,

I agree it isn't that clean.  Timer callbacks aren't listed in the basic Arduino reference documentation that I could see but a search turns up libraries presumably written by others such as this one:  https://github.com/cygig/TimerEvent and https://www.arduino.cc/reference/en/libraries/timeinterrupt/.  Maybe Adafruit was trying to stick directly to what is documented in the basic reference material and also it was written some time back.

I was trying to think of some code I might have written that does something similar with Arduino but couldn't think of anything.  The AIS Alarm that I documented here on e14 uses the hardware timers on the MSP430 directly and not the Arduino libraries.