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This tag should be used for questions regarding the selection of components, deciding functionality, and other issues that may come up during the early stages of a project.
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How to remember variable values after rebooting an Arduino Uno R3 board?
The internal RAM of the Arduino will be reset when you repower the chip, so if you want to keep your data, you need to store it in EEPROM.
If you are worried about the limited write/erase cycles, yo …