Arduino voltage regulator and other questions.
January 5, 2010
Hello, I have a few questions I hope somebody or several people can answer :)
1- I am thinking of integrating an ATMega328 /128 IC to a PCB I'm planning to build for a project which I want to make as compact as possible, but I am not sure if I need the voltage regulator with it's two capacitors as shown here: http://fritzing.org/projects/barebones-arduino/I was thinking of using button batteries and fix the voltage to something like 6 or 9 volts. Do I need a voltage regulator for that? does arduino only work at 5V?
2- I know I'll need the crystal and it's own capacitors, though I'm thinking of using this instead
which I think substitutes the need for the two 22pf capacitors, right?
3- and the last ones, can I use the ATMega328 - TQFP with the same components shown on the first link? , and can the arduino bootloader be uploaded to it with just the serial adapter?
thanks in advance!