Flow meter zero after arduino reset hydroponic monitor

#1

Hello, i doing a project in wichamong others i will have 6 flow meters on a arduino uno wifi rev2. Till now i have 3 of them. My issue is that althougt i have a volume widget for total volume, every time the arduino restart this value goes to zero. Can somebody help me? I want to always add the new measurment.

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#2

you will have to store the last data in the arduino EEPROM.

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#3

Thank you very much for your answer. I dont know really how to do this. My code is this. Can you help?trofodosia.txt (7.3 KB)

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#4

here a good tutorial you can follow https://forum.arduino.cc/index.php?topic=312645

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