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Ask an Expert Forum Interaction between pH, EC, and Redox sensors?
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  • hydroponic
  • redox
  • ec
  • ph
  • arduino
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Interaction between pH, EC, and Redox sensors?

LukasB
LukasB over 1 year ago

Hello,

we have connected a pH, EC, and Redox sensor to our Arduino, however the system shuts down every other day and we need to restart it by unplugging it for a few seconds. We suspect that the sensors (which are constantly submerged in water next to each other) influence each other and cause this shut down. 

Is that possible? If yes, why?

Kind regards,

Lukas

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  • Jan Cumps
    Jan Cumps over 1 year ago +3
    possible issue #3: an overrun of a variable or timer that's unhandled
  • Jan Cumps
    Jan Cumps over 1 year ago +2
    When your Arduino locks every other day, I'd expect one of these two: - a memory leak or invalid address used somewhere in the code, that keeps adding up until full, or overwrites something - a power…
  • beacon_dave
    beacon_dave over 1 year ago +2
    LukasB said: We suspect that the sensors (which are constantly submerged in water next to each other) influence each other and cause this shut down. What diagnostic steps have you taken to come to that…
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  • Jan Cumps
    0 Jan Cumps over 1 year ago

    When your Arduino locks every other day, I'd expect one of these two:

    - a memory leak or invalid address used somewhere in the code, that keeps adding up until full, or overwrites something

    - a power glitch in the utility line that's so big that it corrupts the arduino.

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  • LukasB
    0 LukasB over 1 year ago in reply to Jan Cumps

    We have power outages occaissionally, but I thought it maybe wont be a problem, because the system would just restart after the outage...

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  • LukasB
    0 LukasB over 1 year ago in reply to Jan Cumps

    We have power outages occaissionally, but I thought it maybe wont be a problem, because the system would just restart after the outage...

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  • Jan Cumps
    0 Jan Cumps over 1 year ago in reply to LukasB

    That rules out suspect #2 then.

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