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  neilh20 replied to the topic Monitoring power consumption in the forum Mayfly Data Logger 10 months, 2 weeks ago

  I haven’t had much luck getting to 0.5mA with mega1284, it was with the Mayfly 0.5b- https://www.envirodiy.org/topic/testing-power-consumption/#post-15252   My notes on measurements is that it was between 2-2.5mA.  I did get well beneath 0.5mA   on another project with mega2560, but that was a lot of hardwork, and also ended up with a higher valu…[Read more]
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  Shannon Hicks replied to the topic Monitoring power consumption in the forum Mayfly Data Logger 10 months, 2 weeks ago

  You could also try putting an ammeter in line with the main battery (with no solar or USB connected) to monitor the current of the board during use.  When it’s sleeping, you should see a current of about 0.6mA  for your configuration.  If you measure a sleeping current above 1mA, then something is probably wrong, either the board isn’t properly sl…[Read more]
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  James P replied to the topic Monitoring power consumption in the forum Mayfly Data Logger 10 months, 2 weeks ago

  Thanks for all your help. I believe that the bigger solar panel with >1A peak current, a 1A charging current to the board (jump SJ15), and a freshly charged battery should remedy the winter issues.

  Regarding consumption, I took one unit home, mostly charged a LiPo 3300mAh battery, here is what I found (no external sensor connected, transmitted…[Read more]
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  neilh20 replied to the topic Monitoring power consumption in the forum Mayfly Data Logger 10 months, 2 weeks ago

  @jp – the charger relationship doesn’t quite work that way. The 5V 2.0A is typically the stated maximum the charger can supply – however for the battery charger circuit there are limitations. I use a USB Meter to determine what is actually going on.

  The Mayfly 1.x charger circuit is to 0.5A as default  but can be changed to 1.0A. I always change…[Read more]
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  Jake Lemon replied to the topic Power Issue in the forum Mayfly Data Logger 10 months, 2 weeks ago

  Thanks Shannon. I was actually talking about the stereo jack. See attached image.

  Since we transitioned to the new panels it has been very difficult to get the stereo jack from the panel plugged into that adapter cable. Any recommendations on that are welcome.

   

   
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  James P replied to the topic Monitoring power consumption in the forum Mayfly Data Logger 10 months, 3 weeks ago

  I’ve had a 5v 2.0A usb charger plugged in for 3.5 hrs. The yellow charging light is still on. I think it should take ~2.5 hours to fully charge a 4400mAh battery with a 2.0A charger, so it should be done.

  Does someone know if the board is getting any feedback from the battery on whether it’s accepting a charge or not? If there is not feedback…[Read more]
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  mbullard replied to the topic Please Help! Meter CTD Gen2 being blocked by Yosemitech 511-a in the forum Environmental Sensors 10 months, 3 weeks ago

  Thank you for the quick response, we are looking forward to the new modbus adater.  Meanwhile, we made some quick changes to  existing wingboards to power the Y-551A from the 12v available on the V1.1 rev B, with good results.   One station is back to normal and the other should be as soon as the updated wingboard is installed.  Thanks!
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  James P replied to the topic Monitoring power consumption in the forum Mayfly Data Logger 10 months, 3 weeks ago

  Thanks! So the yellow light was on because solar was charging, that’s good news. I assume that light is powered by the sun and not the battery.

  Our next step will be to replace the battery if the full overnight charge doesn’t work. I’ll set those two DIP switches to off after I try to fully charge the battery.

   
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  Shannon Hicks replied to the topic Power Issue in the forum Mayfly Data Logger 10 months, 3 weeks ago

  They’re spring-loaded quick connect jacks.  The wires go in the round holes not the rectangular ones.  If you tug on them and they don’t come loose, then they should be connected properly.  If they pop out, then you’ve just got to insert them further.  I usually use my fingers, but you could also use something like needle-nose pliers to push one…[Read more]
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  Shannon Hicks replied to the topic Monitoring power consumption in the forum Mayfly Data Logger 10 months, 3 weeks ago

  A description of the operation of the LEDs on the Mayfly board can be found here:  https://www.envirodiy.org/mayfly/hardware/details-and-specs/

  For the one you asked about, it’s under part C:

  C- Power LEDs and DIP switches:  LEDs indicate board power (green) and USB power (orange).  Useful for easily seeing if the board is on and if USB power is…[Read more]
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