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    • R

      Lopy with a hc-sr04 endless loop
      LoPy • lopy expansionboard hc-sr04 • • rootmi  

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      J

      @rootmi I’m no electronics expert and I don’t know the full specs of the sensor, but I’m not sure I understand how those two resistors would be enough. You are still powering a 5V device with 3.3V and sending it a 3.3V signal, aren’t you?
    • G

      LOPY HC-SR04 Adaptation
      LoPy • lopy ultrasonic hc-sr04 • • gas  

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      papasmurph

      @robert-hh Pick it apart :).
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