Hi Here is the thing i'm trying to do I'd like to make an Arduino I2C master trigger events at specific time following a sequence. The idea is to have this sequence starting when I'm pushing on a button For example, the button connected to the arduino uno master is pressed then it turns on a led…

Welcome to the forum Why use slave boards rather than a single Arduino ?

If you decide to use slave boards how are you going to communicate with them?

"How?" The subject title: I2C. [image] Fanch1986: I don't need to repeat the event. Any clues ? Don't.

You detect that the button was pressed, send a "command" to the first slave to turn on the LED strip, and start your time based on millis() (T0). When T1 is fulfilled you send the command to the second slave to play a tone. When T2 is fulfilled, you send the command to the third slave so that... …

[image] MaximoEsfuerzo: When T1 is fulfilled Note that you will need feedback from the slave in order to do this

Not while time is controlled by the master.

OK, so the master says to the slave "do this for 10 seconds", the slave tries to do "this" and cannot. If the slave does not report success to the master then the action will be assumed to have happened even though it is not true Of course, this may not matter, but if the next action depends on th…

Totally agree with you but my post is only a guide to the minimum steps that the PO should follow to do what it needs, it is in he to deepen. Regards

Ok thanks for your help ! I just found this and it's been super helpfull ! [image] Sequencing LEDs using millis() funktion LEDs and Multiplexing I would get rid of lot of globals define all intervals in an array and let a state machine do the rest something like /* …

Please explain why you need to use multiple Arduinos

I2C communication - How to trigger events in a sequence

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Fanch1986 June 4, 2023, 11:13am 10

Ok thanks for your help !
I just found this and it's been super helpfull !

cheers

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I2C communication - How to trigger events in a sequence

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