Hey guys, Im not sure abouth one thing. Arduino uno need atmega328 with bootloader. It won't work with normal atmega328. Does ATmega1280 has any bootloader or i can use every ATmega1280. I'm telling because i was thinking about build my own arduino mega :slight_smile: Thanks.

ATmega1280

CrossRoads April 24, 2012, 8:44pm 5

Connect the same way as any other chip.
Connect crystal & caps, reset pullup resistor to the '1280.
Connect the SCK, MISO, MOSI, +5V, GND and control of the Reset lines between chips.
Program.

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ATmega1280

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