Hello, IM busy with some leds which turn to a side by using a potmeter. it works fine but I find the code a little long. Code so far : const uint8_t ledPins[] = { 9, 11, 10, 6, 3, 5 }; byte Potpin = A3; int Potvalue; byte currentLed = 0; void setup() { Serial.begin(115200); Serial.println…

[image] roelofw: I hope it is clear what I mean clear as mud :slight_smile: what do you mean by "burn"? apparent brightness?

The typical way to handle brightness is to use PWM pins (3, 5, 6, 9, 10, and 11 on UNO) and use analogWrite() to set their brightness through the duty cycle. ➜ Your original code was using digitalWrite so there was no brightness management. [image] roelofw: What I mean is this led 4 burns on …

[image] roelofw: I mean brightness when using PWM to control LED brightness, it is very non linear. a 50% PWM value does not make the LED 50% bright. brightness drops of very rapidly near the end of the range. for example (active LOW LEDs): 100 255 Off 75 254 50 251 25 245 …

This is very obvious. The numbers can change. What im looking for is one on the highest brightness and the last has a very little brightness so it looks like the tail is fading

You might find it convenient to put the LED data in an array of structs so that you don't have "magic" numbers for the LED brightness scattered through your sketch. Something like this ; struct ledData { byte pinNum; byte brightness; }; ledData leds[] = { { 3, 255 }, //pin number, b…

[image] roelofw: What im looking for is one on the highest brightness and the last has a very little brightness so it looks like the tail is fading does this mean that the LED is turned on to full brightness and fades to Off without increasing in brightness? does this mean that during sub-in…

[image] roelofw: The numbers can change. Just need to edit the brightness array in my code to suit your needs

[image] J-M-L: Just need to edit the brightness array in my code to suit your needs it doesn't look like the brightness is changed for a particular LED. The code just sets the same PWM value to each pin. during each iteration, the brightness needs to be reduced for each LED and one LEDs it…

[image] gcjr: during each iteration, the brightness needs to be reduced for each LED and one LEDs it turned full on I did not get that from OP’s explanation. If that’s the case indeed my code does not match the requirements. EDIT: indeed looking at the last explanation with the tail fading …

Can this code be smaller

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roelofw May 12, 2025, 12:48pm 29

I think I will close this one because it seems that I cannot explain what I want in English.

Everyone thanks

Hoe maak ik een staart met led ?

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Can this code be smaller

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