The ProMini sounds like a great solution (thanks for this) but I was looking for something that I can make myself (I like building electronics alot but I am just new in micricontrollers).
I found a way to program the Attiny by arduino board and Arduino IDE using the Attiny cores (Google Code Archive - Long-term storage for Google Code Project Hosting.) but when I try to test the code using the Neopixel Library I get "Adafruit_NeoPixel.cpp:668:3: error: #error "CPU SPEED NOT SUPPORTED""
I thing tat the problem is because from "BOARD" its selected the Attiny 2313 at 1 MHZ internally.
Is there any way that I can get this to work ?