Status: Sheltering in place, neighbor has COVID-19.
Plans: Bring my Node MCU’s online.
- I didn’t keep up with the times today. My friend has a birthday tomorrow and I spent a great deal of time on that today.
Narrative: Air Conditioner seems to be holding up although the humidity seems a bit high. I powered up a NodeMCU with a humidity sensor today to get a reading of what it actually was.
As you can see it was just under 60% this morning. The temperature was comfortable for the most part. The the Air Conditioner rarely runs on high cool and when it does the temperature recovers very quickly.
The 160W bench power runs on solar power beginning about 08:30 in the morning. I plugged a fan into the power strip raising it to just under 200W on a 300W inverter. The 2x 100W solar panels facing east and the 2x 100W panels facing south could not fully support the 200W. (I found that Odd since the SCC was pushing about 10A.) When I checked the components yesterday the 12AWG wire from the SCC was pretty warm, so I replaced it with 10AWG wire. Today the 12AWG wire from the solar panels to the SCC was warm, I replaced those wires today with 10AWG wire. The inverter was still drawing current from the power supplies because of the 48″ of 10AWG wire TO the inverter. I moved the 2x 8″ 10AWG wire to PP75 adapter that I made for the refrigerator UPS onto the inverter as a test and the SCC then had enough copper to support the inverter with a 200W load. It took me about 30 minutes to construct a second 2x 10AWG-PP45 to PP75 pigtail so both the UPS and the inverter each had one. It did surprise me that a short 48″ 10AWG wire was insufficient to carry a 10A load at 28V. After replacing both wires the current to the Inverter DROPPED ~10% to 9Amps. Apparently the higher supply voltage actually available at the inverter improved the efficiency. I made two more pigtails for the other two inverters later in the afternoon.
Mom’s solar setup will also have these issues since the voltage to the 48V SCC is roughly 32VDC at 10A over 400Ft of 12AWG wire! She has adapters that can push 48V towards the SCC, but I’ve not tested it.
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From the book “Triggers” by Marshall Goldsmith
Did I DMBT make my wife feel loved? Yes
Did I DMBT help my wife today? Yes
Did I DMBT be happy? Yes
*Did My Best To