I bought 10 Atmel micro controllers, ATmega328 identical with the original from the Arduino board, and I wanted to change the original micro controller from the Arduino board. the idea is that I would like to use the Arduino stand alone, without the Arduino board. just upload the sketch and after that use the micro controller on a new circuit board designed for a new project.
The ATmega328 I bought, supposed to have the bootloader but after I’ve replaced the chip on Arduino board, I couldn’t upoad any sketch.
I was thinking, maybe the chips I bought didn’t have the bootloader actually.
so, I made the circuit recommended here (picture attached):
and the bootloader loaded successfully on al 10 ATmega328 I have.
after that, I took out the original ATmega328 from the Arduino board and I used one of the new ATmega328 with the bootloader loaded.
but, I cannot upload the sketch. attached, the error message from avrdude.
If you have any idea why or what can I do, please help.