Why doesn't anyone run the Atemga without an external crystal (only use internal RC at 8Mhz) ?
It should be possible and same some needless components .
Any links to such projects ? :
It can be done, if you dispense with tha arduino bootloader and rehashing the Atmega's internal fuses to enable its internal oscillator. You then lose the convenience of not having to use a programmer to upload your sketches. You can reduce the component count by using a 16mhz ceramic resonator rather than a crystal and capacitors. Having played with PICAXE microcontrollers which usually use an internal RC oscillator, not having a stable timebase sucks.........
google todbot blog and you can find an example of a standalone atmega8 using the internal oscillator with the bootloader and the ide. I'm pretty sure the same would work fine with the 168. The oscillator is fine for modest comm speeds.
Thnaks guys.
I am just tsartin gup got my LCD running ..
I have big hopes ...