Step 4: Wire up your Arduino to program the ATtiny85
Follow the wiring/pin diagrams here: http://hlt.media.mit.edu/?p=1229 This site is also good reference: http://provideyourown.com/2011/arduino-program-attiny/ The connections are: ATtiny Pin 2 to Arduino Pin 13 (or SCK of another ...
- Locate your Arduino sketchbook folder (you can find its location in the preferences dialog in the Arduino software)
- Create a new sub-folder called “hardware” in the sketchbook folder.
- Copy the attiny45_85 folder from the attiny45_85.zip to the hardware folder.
- Restart the Arduino development environment.