I am trying to program ATtiny84 and ATtiny85 chips and bought some from Digikey. When I tried programming them with the Arduino ISP sketch I keep getting the error:
avrdude: Yikes! Invalid device signature.
Double check connections and try again, or use -F to override
I have checked to make sure that the correct board is selected and have not touched avrdude as the Arduino help section thought might be one of the problems.
Previously I have succesfully programmed other ATtiny85 chips. For some reason this batch is not working. I am running Arduino 1.0.5
I am using the ATtiny85 with a possible model # of 1252. Does anyone have any ideas about how to fix this?