I'm brand new to the Arduino stuff and need some help. I've programmed many Microchips but never an ATMEGA. The only ones they have for sale are listed as ATMEGA328P-PU. is that the same as the ATMEGA328P. The data sheet is 570 pages and doesen't specify a difference between P and P-PU. And do I need a bootloader? or is that already included in the code Farhan wrote. I have all the parts except the main chip and the Si570, which I can get from Digi-key for 13 bucks. Jerry