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Cannot Connect to Internet with SIM

Home › Forums › Mayfly Data Logger › Cannot Connect to Internet with SIM

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    • 2024-07-09 at 8:53 AM #18564
      Elizabeth Watson
      Participant

        I’ve completed two Mayfly loggers, each with a ClariVUE 10 turbidity sensor connected. I used the DRWI_DigiLTE sketch to set the Logger ID, arrange the variable list, and input the UUIDs. However, I keep getting the message “could not wake modem for clock sync” on both Mayflys. The data for the sensor is shown on the serial monitor and it states it is saved to the SD card as a csv, but it isn’t transmitted to MonitorMyWatershed. The connection also appears to be -9999, which I’m assuming means there is no internet connection to the Mayfly.

        My SIM cards are from Hologram and both are activated and in a “ready” state as according to the website. I’ve checked a few other forums but am unable to fix my issue. If other information is needed, I would be happy to provide.
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      • 2024-07-09 at 11:42 AM #18565
        Elliot Ma
        Participant

          Funnily enough, I’m having the exact same issue! Also using the ClariVUE 10 turbidity sensor. It seems that the logger is writing to the SD card instead of connecting to the SIM. Hologram is basically telling me the SIM is online and ready to be communicated with, it just isn’t receiving anything.

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