Various questions

[jandelgado]

Various questions

[jandelgado]

Hi,

What exactly is non-blocking, something similar to multitasking like with freertos ?

It basically means that your sketch/program using JLed will not be blocked while the effects play. This is achieved by calling the Update method on the JLed objects from inside your main loop, like e.g. in void loop() { led.Update(); }, instead of doing something like e.g.

// blocking example
void loop() {
   analogWrite(LED_BUILTIN, 0);
   delay(500);
   analogWrite(LED_BUILTIN, 255);
   delay(500);
}

for a blinking LED, which will block your code in the delay calls. JLed does not use "multi-tasking" or timers, the client has to make sure that the Update method is called regulary.

See the [examples]https://github.com/jandelgado/jled/tree/master/examples) for details.

Would it be possible to change the start and end values ( brightness ) on these effects, especially breathe ?

Yes, use the MaxBrightness method to set the maximum brightness of a LED. It allows to set the maximum level of an effect.

Do you know these flameless candles ?

Yes, use the Candle effect to simulate candles and fire flickering.

I would like to build something similar, just bigger.

I would have 4 solenoids moving the flame and 5 channels for the LEDs.
I would use a ESP32 to have some kind of remote control : ON / OFF, Brightness, Speed.

Sounds like an interesting project, looking forward to see it in action ;)

[harueg]

Hi jandelgado
Thanks for the quick response !
The candle effect is a bit to flickery for my application. I really do like the breathing.
I just need to change the parameters on the fly.
i.e. min. brightness, max. brightness, duration. These values should be ( in limited range ) random generated. The limiting range then is controlled by an external input, preferably over wifi or something similar. ( when time allows )
I added a nice candle effect, which for some unknown reason worked on an UNO.
But I wasn't able to compile it for the ESP32. No idea whether it was multitasking on the UNO.
The code for one LED is from line 75 - 144. It dims between the old and the new brightness value.
I think you do something similar, just with more math. As far as I could decipher from the sources.

Yes... action, it has to be finished in 2 weeks.

Thanks again

Harald

blink_analogread_Led_ino5.zip