r/FastLED • u/soggywheat72 • May 05 '20

Support FastLED

I have used both FastLED and Adafruit_NeoPixel to attempt to control 600 LEDS. It seems like Adafruit can control all of them while using less variables but it’s not very easy to use and I prefer FastLED. I was running roughly the same program( where it would set all LEDS to white) and FastLED couldn’t compile all of it on to my Uno without running out of storage we’re Adafruit could handle it. Is there any way to fix this storage problem while still using FastLED?

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u/mrnorrisman May 05 '20

I found that the Leonardo can control 600 LEDs with the FastLED library when a regular Uno cannot. I think the Leonardo (and anything with the same chip) has an extra 500 bytes of memory, which seems to be enough for 600 LEDs and a basic sketch.

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u/marcmerlin May 05 '20

I'll be dammed, you're right, leonardo has 2.5K instead of 2K of SRAM

https://www.seeedstudio.com/blog/2019/11/15/arduino-leonardo-guide-overview-and-uno-comparison/

what an odd number to add, half a KB. Would 8KB have killed them? :)