Does anyone know if there is a way to do "dynamic" leds number.

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1

Does anyone know if there is a way to do “dynamic” leds number.
For instance I could save leds count in EEPROM then on start read it and use in my sketch. I need this to implement possibility to easily add and remove leds without need to rebuld the firmware.

2

Create an led array that’s the maximum number of leds that you would support and then set num_leds from eeprom - for example:

#define MAX_LEDS 512
uint_16 NUM_LEDS = MAX_LEDS;
CRGB leds[MAX_LEDS];

…

setup() {
NUM_LEDS = value_from_eeprom();
LEDS.addLeds(leds, NUM_LEDS);
}

3

This sounds like a solution. Thanks.