- Select the correct board / serial port - Upload this Sketch to the processor - Connect PB4 / Pin 4 to transmit on the serial converter - Connect an LED + resistor --> ground on PB0 / Pin 0 - Start your favorite terminal program, open the correct serial port, change the baud rate to 9600
Excellent. On the Duemillanove, connect a jumper from RESET to GND. This holds the processor in reset preventing it from running. You now have an accurate USB-to-TTL-serial converter.Connect RX (or TX; I can't remember the reference point) to the appropriate pin on the ATtiny processor. Connect GND on the Duemillanove to GND on the ATtiny. Using your favourite terminal application send 'x' characters (don't send them too quickly; Tiny Tuner needs a little gap for processing). It usually takes less than a dozen 'x' characters to find the ideal value.Note: The ATtiny84 processor has enough memory to run the interactive sample. Just connect TX (or RX) to the pin used for Tiny Debug Serial.
Which is the sketch loaded on Duemillanove ?
Sorry, it is a slow monday.
Also, did you mean ATtiny85 (not 84) ?