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Modbus/12V to cellular

Home Forums Mayfly Data Logger Modbus/12V to cellular

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    • #1694
        I’m thinking of trying for a mayfly modbus poller, along the lines of my previous post envirodiy.org/imp-calling-sensor/
      • #1701
          Well I’ve done some design thinking on this. I’ve focused on just generating the +12V. The issue with the Mayfly circuit is that the switched pwr comes from the 3.3V which also powers the
        • #1813
          Shannon Hicks
            Neil, these were all good observations about the 5v boost circuitry on the Mayfly. The NCP1402 has been obsoleted by the manufacturer, so I’m looking for alternative ways to generate 5v and pos
          • #1817

              Great. If you want cct comments I’d be happy to participate. I’ve used LM2623 +5V/1A, and also can do +12V

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