diy solar

diy solar

(Out of business 2023-08-01) Raspberry pi 4 for $50+$5 shipping in the US

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solarhombre

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I'm not affiliated with the site or know anyone involved, but a friend just passed me this link after I complained that my first 2 raspberry pi 4s were $45 and now they're as expensive as a small industrial mini PC (qotom with Celeron for $100).

https://www.pi4u2.com/ or his FB https://www.facebook.com/marketplace/item/214755578097835

The guy is selling the raspberry pi 4s at cost and the goal is to sell 150 of them this week to keep prices low.
 
You have to make sure that the Pi4 is compatible with your needs.
I don't think that it's compatible with Solar Assistant.
 
It's been running fine on my Pi4b since October. Unless I overloaded the inverter and completely forgot to wire it up with the dc adapter I bought months ago, but I'm going to pretend that didn't happen...
 
timselectric said:
You have to make sure that the Pi4 is compatible with your needs.
I don't think that it's compatible with Solar Assistant.
Click to expand...
It works fine with PI4.
 

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timselectric said:
You have to make sure that the Pi4 is compatible with your needs.
I don't think that it's compatible with Solar Assistant.
Click to expand...
After my pi4 died, I'm using a Pi3 running mpp-solar in a docker container, polling every 5 or 10 seconds, publishing to MQTT, and the Pi3 is mostly idle as in loadavg reporting negligible load.

If/when the Pi3 dies, I'll get an xcy/qotom or similar. For a little over $100 you can get actual serial ports (2 to 6, with 1 supporting RS485), DDR3 memory and an Intel CPU (old stuff, but depending on what you choose TDP 10W or less)
 
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