Community Activity

See all activity

• 

  Jake Lemon started the topic Power Issue in the forum Mayfly Data Logger 1 years, 1 months ago

  I have a station that was recently deployed that cannot maintain sufficient battery voltage. The strange thing is that the voltage drops over one 15 minute increment, rather than gradually over time. Voltage consistently is dropping from the low 4V to the low 3V between successive measurements. Then, at times, the voltage with jump back up to the…[Read more]
• 

  NormO replied to the topic Coding to send data from a non-Mayfly logger in the forum Monitor My Watershed 1 years, 1 months ago

  @neilh20 – thanks for your very detailed post and information!!

  I hadn’t really considered the relationship between connectivity and packet size. I do have some issues at some of my sites with connectivity but always thought about it in terms of local interference. About half of my sites are buoys and someone has suggested to me that the ground…[Read more]
• 

  GlenY became a registered member 1 years, 1 months ago

  

  GlenY

  @gleny1

  View Profile
• 

  Lovett Keshet became a registered member 1 years, 1 months ago

  

  Lovett Keshet

  @elovett

  View Profile
• 

  mbullard replied to the topic Mayfly v1.1 technical questions forum thread in the forum Mayfly Data Logger 1 years, 1 months ago

  Shannon, thank you.  I will keep it at 500 mA, while increasing the solar panel wattage to provide more hours of charging at 500 mA.
• 

  Shannon Hicks replied to the topic Mayfly v1.1 technical questions forum thread in the forum Mayfly Data Logger 1 years, 1 months ago

  The very bottom-left corner of the schematic for board v1.1 mentions the two charge rates, which you can control using solder jumper SJ15.  Here’s the description of that jumper from the Jumper Settings page:

  SJ15:  Lipo battery charge rate:  500mA (default) or 1A.  This jumper allows you to select the maximum charger output current of the onb…[Read more]
• 

  mbullard replied to the topic Mayfly v1.1 technical questions forum thread in the forum Mayfly Data Logger 1 years, 1 months ago

  Hi,

  What is the maximum recommended amps from a 6 volt solar panel to the V 1.1 board?  Is this different for previous boards?  There are two solar inputs–are these the same input but different connectors?

  Thanks
• 

  neilh20 started the topic MMW lost readings in the forum Monitor My Watershed 1 years, 1 months ago

  I’m seeing a  gap in data downloaded from the MMW database – about 5 days worth of lost readings.

  It seems to be across all my devices.  I spot checked a couple of other devices, and they also seem to be missing.

  I noted it here but it hasn’t got a response https://github.com/ODM2/ODM2DataSharingPortal/issues/685

  The lost data initially came up…[Read more]
• 

  neilh20 replied to the topic Coding to send data from a non-Mayfly logger in the forum Monitor My Watershed 1 years, 1 months ago

  @oakleynode something to note is that the MMW/ODM2 packet design with UUIDs make an extra heavy packet. The packet design is not optimally designed for wireless conditions, the thingspeak packets are much lighter. If your site is on the edge of the wireless range,  which varies a lot of with weather conditions, its going to have more trouble with…[Read more]
• 

  neilh20 replied to the topic Monitoring power consumption in the forum Mayfly Data Logger 1 years, 1 months ago

  @shicks surely the issue isn’t how long it lasts – it will always run  out of power at some point, or even worse batteries loose capacity, what was working decays – the issue is how to reliably recover when it has run out of available mA.  ?

  The reliable bit – as in all engineering – is to add a buffer for real world component variations and t…[Read more]
• Load More