I am working on a project for a friend that wants to tap into his directional's on his car to drive some leds and sequence them. I have ran into a problem with the code. I have a simple for loop that is going to sequence leds to be on that will repeat when the turn signal is high. The problem is the…

I'm pretty sure millis will be the answer. Post what you have so far.

Every time you see the turn signal go high, or turn on the light, set a flag (turning signal true) AND a timer. When the timer exceeds 2 seconds, clear that flag. The flag will then follow the turn signal switching by the user, but remain high. Except: it will sometimes take 1.999 seconds for you…

Good point about going to the source. I will see if he has wiring diagrams. On the other thing about setting flags. That seems to be the issue. The issue is when it is in a for loop for cycling the leds no other code can be ran outside that for the for loop to detect the signal going low. That is wh…

[image] KEV31779: The issue is when it is in a for loop for cycling the leds no other code can be ran outside that for the for loop to detect the signal going low. No no no! You won't need interrupts and I forbid you from introducing a '555 timer IC as a kludge-around.* Slow your roll for a …

Haha I Understand. I will try to access my kludge code and post it after lunch. Stay tuned. :laughing: Keep in mind I am still new to coding in this way so some terminology or suggestions do not mean anything to me yet. Thanks

OK, holding my breath. Not. Blink multiple LEDs: [image] Arduino : Independently Blink Multiple LED A practical question which comes up every day is how to blink two LEDs at different rates? That simply means an independent control on each LED. That small wish is a big jump to visual a…

Here is the progress code. It somewhat works. I am using delays but in a for loop I don't understand any other way to use a delay without using delay. for loops block anyways don't they? int ledState = LOW; unsigned long ledStarted = 0; const long interval = 4000; int ledArray[3] {3, 5, 6}; int but…

OK I’m out the door going to the beach this fine day, but… You want to look into and learn up on FSM “finite state machine” techniques. The classic over done example is traffic lights, googling traffic lights arduino state machine or variations will lead you to many examples. Try a few each for …

Lucky you. You must live in a warmer climate. It's getting to cold here to enjoy the outside. This is when I plant myself in my lab to start tweaking on things. Thanks so much. I have used switch cases. I will take a look at the information you provided and try to study up on it. I get what your s…

I think I have come up with a way to do the non blocking sequences from your suggestions. Is this something like what you are talking about? It does seem to work. The project code is not complete. This is just a sample of the led sequencing part to show how it works. if (currentMillis - setMillis1…

Help with converting a pulsing input to a solid input when using a for loop and adding an off delay

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alto777 November 16, 2021, 5:03pm 7

OK, holding my breath. Not.

Blink multiple LEDs:

Do several things at once:

Google is your friend for odd terminology or code concepts. Add Arduino and/or C/C++ to you searches to get a bit closer to truths you can use.

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Help with converting a pulsing input to a solid input when using a for loop and adding an off delay

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