Anyone know the max amount of lpd8860’s a tiny85 will run? Just need estimation if possible so I don’t have to test it.
From what I have read about using the ATTiny85, the maximum number of LEDs is approximately 120. Here is a good post that I saved for my reference. https://plus.google.com/112889495015752015404/posts/QmCDZDcARY9
Thank you sir. I remember trying a few months ago but I can’t remember the results.
Realistically closer to 100-110 of you want to do anything other than a bouncing dot, maybe less.
I have driven 120 with a Tiny85 … would start to get wonky after that. To be safe, I stick to 100.
A conservative estimate (and easy to remember guideline) is that an ATtiny85 can drive about 85, and an ATmega328 can drive about 328!
You can drive a few more if your animations are simple and don’t take up much RAM for variables and arrays. If your animations are more sophisticated and take up more RAM for variables and arrays, you may have to cut back the pixel count.
I’ve squeezed 400 pixels out of an ATmega328, but it was running a pattern that didn’t use much RAM other than the leds[] array.
Sweet! Thanks guys!