n00b question changing a 168 from 1gmhz to 8mhz internal

[sydkahn]

I upgraded my 'duinos with a couple of 368 chips i got from here. Now I have a couple of left over 168 chips. They are set up for 16mhz - what do i have to do to get them set up for 8mhz internal? I hate to have unused silicon laying around

Do i need to reset fuses using a HV programmer <cringe> or will your ISP kit manage it?

FYI - I don't actually live at the end of the earth - but i can see it from my roof - so needless to say it takes days/weeks to get parts if Radio Shack doesn't have it.

[koolkat]

You can use the USBtiny ISP

I use this program to help me with the fuses

http://www.vonnieda.org/software/avrfuses

i also use this
http://palmavr.sourceforge.net/cgi-bin/fc.cgi

[trialex]

Just stick 'em in whatever board you are using (that has an ICSP port), connect us the USBtinyISP, select "Lilypad" in the Tools -> Board drop down, then Tools -> Burn Bootloader -> USBtiny

This way you don't have to play around with the fuses yourself, you use the defaults for the Lilypad which is the internal 1MHz clock.

[mtbf0]

in order to reprogram the fuses you'll have to have '168 in a board with a high speed clock source connected at pb6,pb7. the arduino board would be the obvious choice.