Hello Arduino comunity, so im doing a code and I need the code do this: Count 1 minute with millis After count that minute, check a sensor If sensor is minor than X value start another counter and inside that counter condition (because is millis) read a sensor and turn ON a rele until the sensor reach a value greater than X, after that restart the first counter and again again again. I dont want the code, I just want to know if it is possible and maybe some guidance, thank you comunity

[image] juansitoarduinero: I just want to know if it is possible Yes, what you propose is possible. maybe some guidance Don't used delay() anywhere in loop(). These tutorials will be helpful [image] Using millis() for timing. A beginners guide Tutorials Part 1 It is not usually long before new Arduino users discover that although the delay() function is easy to use it has side effects, the main one of which is that its stops all activity on the Arduino until the delay is finished (not quite true, I know, but that is usually how the problem presents itself). When this occurs the new user is usually directed to the BlinkWithoutDelay example sketch (BWoD) and/or the excellent thread entitled Several things at the same time. Several things at the… Doing several things at the same time http://forum.arduino.cc/index.php?topic=223286.0

The basic idea is demonstrated by the Blink Without Delay example, and tutorial.

So what happens when the minute timeout happens and the sensor is >= X? Wait another minute before checking? Or keep looking at it constantly until it's = X restart 1 minute sensor time make relay inactive fi If you only want the sensor checked for < X every minute, simply restart the sensor timer as the first step in the first outer if, just like in the second outer if.

[image] juansitoarduinero: I just want to know if it is possible Yes. [image] juansitoarduinero: some guidance [image] juansitoarduinero: Count 1 minute with millis [image] Millis() to hours, minutes, seconds, and milliseconds Programming I got the following code sample from user johnwasser in another thread on the same subject. I'd like to use this code in a project, but I need to take it a step further and make use of the millisecond(s) remainder that resulted from the initial division of millis by 1000, instead of rounding it up to the next second as was done below. I'm brand new to Arduino programming and have not been able to find a reference solution. Thanks in advance for any help! unsigned long currentMillis = millis();… Read analog sensor https://docs.arduino.cc/language-reference/en/functions/analog-io/analogRead/ Less than https://docs.arduino.cc/language-reference/en/structure/comparison-operators/lessThan Greater than https://docs.arduino.cc/language-reference/en/structure/comparison-operators/greaterThan/ Counters How to Make a Counter in Arduino | Delft Stack

How can I do this? Millis and conditions

Projects General Guidance

cattledog August 6, 2025, 12:23am 2

Yes, what you propose is possible.

maybe some guidance

Don't used delay() anywhere in loop().

These tutorials will be helpful

Doing several things at the same time
http://forum.arduino.cc/index.php?topic=223286.0

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How can I do this? Millis and conditions

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