Is there a way for a Variable declared in the program to retain it's value if it is change and the arduino is turned off then on again? Example is that if "X" variable is declared as 0 from the start of the program, and then it became "X=1", is it possible when you turn off/on the arduino the "X" …

Retaining Variable Value in Arduino - Possible?

liuzengqiang January 10, 2013, 4:06am 7

I use a 9V center positive ac adapter with 1A current rating. Make sure it is center positive.

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