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Reply To: SDI-12 Change Address for Meter Hydros 21 CTD Sensor

Home › Forums › Environmental Sensors › SDI-12 Change Address for Meter Hydros 21 CTD Sensor › Reply To: SDI-12 Change Address for Meter Hydros 21 CTD Sensor

2019-08-15 at 8:02 AM #13079
dan@wachusett
Participant

    Yes, this is a brand new board.
    The microSD card is not the issue – I have switched cards and get the same result. Both cards work fine if used alone.
    I believe the problem lies in the circuitry between the two SD card slots… When only 1 card is inserted (either slot) the board powers on. If both slots have microSD cards inserted simultaneously – no power.
    As an extra test, and to isolate the problem, I unplugged everything else from the board except the usb cable to the computer – I get the exact same behavior.