The on-chip ADC in the Atmega lineup was so easy to use compared to the one on LPC1768. Last time I had tried, the Atmega ADC didn't need much filtering to give reasonable results. But the ADC module on LPC1768 seems unusable without filtering.
While working on a project on the Atmega8 for school, the FT232 chip being used as a UART - USB converter failed. Well, actually its the board that failed, or rather broke...