Tiny AVR programmer and pin PB5/RESET (pin 1) of ATtiny85

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1

Using the Tiny AVR programmer, can I program ATtiny85’s pin PB5/RESET as a generic GPIO or ADC input? If I do so, will the programmer be able to reprogram it next time? (I guess it has to be able to apply 12V to this pin.)

2

Hi, thanks for writing in.

If you change the fuses to allow PB5 to act in a way other than a reset pin you cannot simply reprogram the ATTINY85 via an ISP programmer.

You would have to reset the fuses with a high voltage programmer. Something like another Arduino dev board could work.

Here is a resource to take a look at for further information:

http://www.technoblogy.com/show?LSE

Hope this helps.

3

Thank you very much!