The AtMega's (168/328) have an internal 8MHz oscillator and this is a good alternative for custom designs. Also boards like the "Mini Pro 3V3" run at 8MHz and they work well with the Arduino core and with the "official" libraries.
The AtMega's (168/328) have an internal 8MHz oscillator and this is a good alternative for custom designs. Also boards like the "Mini Pro 3V3" run at 8MHz and they work well with the Arduino core and with the "official" libraries.