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  Cal replied to the topic Battery Power Options in the forum Mayfly Data Logger 1 day, 13 hours ago

  Thanks, Shannon, for your response, clarifications and tremendous work with the Mayfly. Addressing your questions:

  I’m powering the CS451 with the same 12v battery that powers the Mayfly from the 12-5v USB converter. The ground (-) of the Mayfly & battery are common. I could not find anywhere in the Campbell Sci specs the voltage level for the…[Read more]
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  Brett Melbourne replied to the topic Battery Power Options in the forum Mayfly Data Logger 1 day, 15 hours ago

  I have a really similar issue (12V powered sensor + SPI-12) that I would appreciate some advice on. We want to monitor solar radiation (shortwave) under forest canopy, for which common silicon diode pyranometers (e.g. Apogee SP212) are not suitable – a thermopile pyranometer is needed. We have two options for thermopile pyranometers. 1) Apogee…[Read more]
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  Shannon Hicks replied to the topic Battery Power Options in the forum Mayfly Data Logger 2 days, 7 hours ago

  To address your points:
  1. Any power source connected to the 2 pins labeled “Ext 12v” will power the Mayfly but will not charge any LiPo batteries connected to the two LiPo jacks.
  2. The solar panel connected to the JST jack labeled “SOLAR” should never exceed 6 volts. The charging circuity on the Mayfly uses a small chip that has a 6v…[Read more]
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  fisherba replied to the topic logging to mmw with GPRSbee rev.7, issue wake/sleep and server response 504 in the forum Mayfly Data Logger 2 days, 19 hours ago

  Are your UUIDs all correct? If you are not sending a parameter, such as modem status, it still needs to have a full string in the “shape” of a UUID.

  …first guess without more information…
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  Cal replied to the topic Battery Power Options in the forum Mayfly Data Logger 2 days, 23 hours ago

  Next week I’m deploying several units – Mayfly with XBee using Hologram SIM, logging data from CS451 SDI-12 pressure transducers. They are replacing old 12v systems with Microhard 3G modems and CR300 Dataloggers. The old modems are power hungry and unreliable. The AT&T service is expensive and 3G will go away eventually. The dataloggers have…[Read more]
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  Bernard started the topic logging to mmw with GPRSbee rev.7, issue wake/sleep and server response 504 in the forum Mayfly Data Logger 3 days, 22 hours ago

  Dear all,

  I am trying to run an almost identical sketch “logging_to_mmw.ino” from the modular_sensor examples using a sodaq GPRSbee rev 7. If I am correct the rev.7 uses the same wake functions as the GPRSbee rev 6. So I assumed that I had to define both the sim800 and rev.6 modem in the sketch. See below:

  //…[Read more]
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  lemon replied to the topic Mayfly Dissolved Oxygen Sensor in the forum Mayfly Data Logger 4 days, 22 hours ago

  Thanks for the great info all!

  If I were looking to add the Yosemitech standard model to a Mayfly Station with a CTD and Campbell Turbidity sensor would I need to enhance the power capability? Bigger battery…bigger panel? Do you have code for the Yosemitech? Are there other considerations I need to take into account?

  Thanks again.
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