The ATtiny85 ISP! allows you to work with the Atmel AVR ATtiny85 chip easily on a breadboard with a 6-pin ISP programmer such as the USBtinyISP (programmer not included).
The ATtiny85 chip is Arduno IDE compatible and lots of Arduino code will port right over with slight modifications to things such as pin number etc.
The kit includes one ATtiny85 ISP! printed circuit board, one ATtiny85-20PU, and all required components, you solder together in your “lab of doom.” Full kit instructions are here:
Shipping is flat rate $2.99 to the USA, each additional ATtiny85ISP! kit is free. In addition, any other PCBs you order at the same time on the site will also ship free.
Shipping outside the USA is flat rate $6.99USD, each additional ATtiny85ISP! kit is free. In addition, any other PCBs you order on the site at the same time will also ship free.