hey all whats the smallest platform that can handle the fast spi script? im thinking of setting up a new project
“For folks using the FastLED (formerly FastSPI_LED/FastSPI_LED 2) libraries.” 
I’ve used the Digi-Spark, Attiny85 is pretty small in memory and size http://digistump.com/products/1
You can cram FastLED and a small amount of code onto an $8 Trinket or Gemma, both of which are ATtiny85’s.
Me, I tend to use Arduino Nano’s as my “small platform”. They’re around $10-12, and have the same computing power and RAM as an Arduino Uno. I’m currently driving a string of 400 pixels with a ten dollar Nano. They’re physically pretty small, too.
If you want small form factor and a little more computing power and RAM, check out the Teensy 3.0 from PJRC. (We don’t support the newer 3.1 just yet, but very soon, I suspect.) They’re $20, ARM-based, very capable, and physically quite small.
What are you thinking of for your project?
Hmm ok well almost like an led belt you know?
Depending on how far I can go maybe even a message display belt
Oh! So also look at the BlinkyTape. It’s one meter long, with 60 LEDs on it and an physically small but reasonably powerful ATmega chip right on the LED strip. It programs like an Arduino Leonardo with 60 WS2811s attached.
Oh that may work
I really like using mini pros they cost under 6.00 you just need a ftdi adapter to program which are under 10.00. I used started using tiny85 which a clone board from digispark which is really cool.
I use a bare attiny85 + battery + small strand of pixels. If you have a programmer (usbtinyasp) you don’t need all that fancy USB stuff in the digispark or trinket. They do make it a lot easier though. Especially if you’re new.
The teensy 3 is awesome if you’re doing stuff with more lights or fancier patterns.
Zeke! Can you show your wiring diagram? I’ve tried bare attiny with FastSPI rc4, and that was not so good, i’ve recently go to situations where i loose timings…
Check this out: https://www.olimex.com/Products/Duino/AVR/OLIMEXINO-85-ASM/open-source-hardware
It makes working with the tiny85 easy. Programs with usb and has pin outs for each of the pins.
I don’t need any boards i need to see wiring of bare attiny, because i have same attinys, but it working ugly.
3AAA battery holder (bat)
WS2812 strip (strip)
ATTiny85 (tiny)
bat+ goes to tiny pin 8, and to strip+
bat- goes to tiny pin 4 and to strip -
tiny 2 goes to strip data
I generally take an 8 pin socket, push the pins out so they’re splayed out 90 degrees. Cut off pins 1, 3, 5, 6 & 7. Twist a short length of red wire to the end of the batteries red wire and solder that pair to pin 8 of the socket, do the same with the black wire on the battery pack and solder to pin 4 of the socket. solder a blue wire from pin 2 of the socket to the DIN of ws2812 strip and then he short piece of red wire to the +5v and black wire to the GND.
So current is flowing directly to both the attiny and the strip, but data is only going from the tiny to the strip.
Now I use a little clip to connect the tiny to the programmer, but I’ve also used a socket in some perf board. I’ll add photos in a minute.
I can’t seem to add the photos here so here’s a link. https://plus.google.com/107405884874432450288/posts/HgHxWdjroWP