Unfortunatelly I have some trouble understanding the following help: http://arduino.cc/en/Tutorial/ArduinoToBreadboard I come here to you so much more experienced folks and hope you can help me!
I would like to turn a "virgin nothing on ATMega328PU" µC into one that is loaded so to replace the one in the Arduino Uno Rev3. But I am stuck with the tutorial.
My main doubts/troubles in understanding are: A) Do I need to get 2 Arduino boards to be able to do that? (I think not) B) Do I need an external clock crystal? (B1)if so...Why? ) (B2)any disadvantage (i.e. different result) if I dont have that?) C) The site linked says:
Note that these techniques only work with the Arduino Duemilanove w/ an ATmega328, not the Arduino Uno (or older Arduino boards w/ an ATmega168).
But (confusion?) continues with explaining about the Uno board? => is the uno(rev3) or is it not possible to be done with it?
I am hopeful you can give me some insights and quick help.. As for the experienced people it is often "so laughably easy", but for me as a newbie.... really tough. => hence your help is appreciated very much. Thank you
BACKGROUND Just a quick intro. My setting: 1) I load a sketch to the Arduino UNO REV3 and hence its original Atmega328PU quite frequently (say ~100 a day, because I often work "learning by doing" and "trial and error". Please do not judge me. Its just plain 1 avrdude quite often. 2) I think (1) will be over time kill my Atmega (~10'000 write cycles only) 3) It is time to get myself a backup Atmega328PU. 4) I have only this:
- The Arduino UNO REV3
- PC-USB-connection to the arduino
- a breadboard
- a 12V power suply I can plugin at the Arduino.
5) I do not have:
- a second Arduino
- a ISP-specially made device
- a external clock crystal
- very experienced background in electronics