hello! i have question.
Mega2560 has ICSP pin. so i think that i can programming on atmega2560 in Arduino mega2560.
if i make hex file, can i use ICSP of atmega2560 in Arduion mega2560?
And Mega2560's reference voltage(VCC) is 5V.
i want that to using 3.3V.
Can Arduino mega2560 operate from use 3.3V?
if Arduino mega2560 used to 3.3V, What have problem?
And How can use to operating 3.3V?
because i want have solution about that, i will wait.
Give me answer.
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