hey i want to shrink one of my projects and use an attiny85. i only need the two pins for the RTC and one for a PWM output.
i was thinking about getting the tinywire library and editing the RTC library from adafruit to work with the tinywire library. would this work?
Pin5 is SDA, pin 7 is SCL.
Core so you can program the ATtiny85 the Arduino way...
http://code.google.com/p/arduino-tiny/
I2C library so you can communicate with the RTC...
http://arduino.cc/playground/Code/USIi2c
editing the RTC library from adafruit
I think BroHogan or carl47 has already done something similar. Try searching the forum for their monikers and some keywords.