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wcb_data became a registered member 2 years ago
wcb_data
@wcb_data
Dave replied to the topic lifepo4 solar system in the forum Infrastructure and Equipment 2 years ago
Thanks for the feedback
Funny you should mention rocket scream, I’ve just had a few red comet esp32s delivered. They promise low power consumption and solar charging for lifepo4. I’m hoping to replace a rather bulky 12V panel and battery system with the red comet and a single cell 26650 lifepo4 (see…[Read more]
neilh20 replied to the topic lifepo4 solar system in the forum Infrastructure and Equipment 2 years ago
@davem great topic. I was at a SSU Eng Presentation yesterday by Enphase a leading solar equipment provider and they use LiPo4 in their battery 3.3Kwh/10Kwh systems. All about safety. LiPo4 slightly less power density — but that isn’t a problem with stationary systems. No temperature stability. Fire issues are a big deal. A recent newsp…[Read more]
sofija became a registered member 2 years ago
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@sofija
Dave started the topic lifepo4 solar system in the forum Infrastructure and Equipment 2 years ago
Hi all
Just wanted to get your thoughts or options for lifepo4 power for monitoring stations. First off, I generally use an arduino pro mini 3.3V for switching on/off the main logging system and in sleep mode the pro mini consumes ~50 uA. I’ve also just got a hold of the rocket stream mini ultra which promises 4 uA sleep current, lets see…[Read more]
Dan replied to the topic PAR issue with Mayfly in the forum Mayfly Data Logger 2 years ago
I updated the ADC library and changed the ADC definition on line 77 to the 1115 and that did the trick. 1.5V. I am assuming that any past data taken in the field with the wrong ADC definition cannot be back calculated. But moving forward we have a working PAR sensor.
Thank you so much for taking the time to help solve this. Much appreciated.
ryanpcole became a registered member 2 years ago
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Shannon Hicks replied to the topic PAR issue with Mayfly in the forum Mayfly Data Logger 2 years ago
Sorry I didn’t catch this earlier when I looked at your code. But in line 39, you included the wrong library. All of the various Mayfly board versions we’ve ever built have the ADS1115 chip on them, so you need to specify the ADS1115 library and no the ADS1015 library (because the 1015 is the lower-resolution version of the chip). So line 39 if…[Read more]
Dan replied to the topic PAR issue with Mayfly in the forum Mayfly Data Logger 2 years ago
Current board that I am working on in the lab is a 0.5b. But we have run into the same issue with logging/calculating PAR using version 1.0 as well. We are running a mix of 0.5 and 1.0 in the field due to many of the older 0.5’s USB ports failing.
Dan
TUBearRiver replied to the topic Hologram monthly bill in the forum Miscellaneous 2 years ago
Shannon,
Thank you for the explanation on the fees. The Maker Flexible plan sounds good to me. We will just turn off the logger station as you suggest, which we’ll do in November and the keep the card active so that we can redeploy in the spring.