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supply electrode with the humidity of the soil

Discussion in 'General Electronics Discussion' started by hagi, Oct 17, 2015.

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  1. GPG

    GPG

    452
    66
    Sep 18, 2015
    Should have refreshed. Yes it could be done that way.
     
  2. hagi

    hagi

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    Oct 17, 2015
    I will use 12V from supply adaptateur, or else I could use 9V with 7809 .
     
  3. GPG

    GPG

    452
    66
    Sep 18, 2015
    Last edited: Oct 20, 2015
  4. hagi

    hagi

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    0
    Oct 17, 2015
    I did not know analog swith , I will watch examples of application on the internet.
    I have found the schematic
     
  5. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

    4,960
    648
    May 8, 2012
    This might be considered old school since it would include a relay but the 555 can be used to cycle a DPDT relay wired the same way they're used to reverse polarity for DC motor direction control. Come to think of it a DPDT relay wired in this configuration constitutes the electromechanical equivalent of a solid state H Bridge, so that might be doable too.

    Cheers,
    Chris
     
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