I've got 2 outputs that can be turned ON at any time I want. It will automatically turn OFF after 1 minute. I am using the millis() function. My problem is I can turn ON the outputs at different time but they always turn OFF at the same time.
I turned ON output1 first, then after 10 seconds while output1 is still turned ON, I turn ON my output2. Since I set that they will automatically turn off after 1 minute from the time they are turned ON, my output1 should be OFF first then after 10 secs my output2 then will be turned OFF. But what I encounter is that by the time my output1 is turned OFF, my output2 is also turned off simultaneously with output1. What do I need to do to fix this?
Please post your full sketch.
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Every millis-timer needs its own 'previousMillis'.
In my single shot timer every added single shot timer needs its own 'previousMillis', 'enable' and 'interval'.
Post your sketch, it seems that you are using millis() in the wrong way.
My problem is I can turn ON the outputs at different time but they always turn OFF at the same time.
A wild guess would be that you are using the same variable to hold the start time of the 2 separate 1 minute periods, but until we see your code, who knows ?