Meassuring power output of small solar panel

Using Arduino Project Guidance
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Isn't this what I did in my first simulation then? https://www.tinkercad.com/things/9T5N6KRi35c-dual-solar-output-meassuring
It still did not provide a way to power the project however xD

@bluejets "not the way to install panels with any shading" bro you are missing the point. I need to identify which roof surface is better - or both - or none - to install solar panels. I have a vareity of setups in mind, serial vs parralel, multi inverter vs individual inverter setups. There are options for all kinds of scenarios. All comes down to a lot of different parameters that I did not even cover in this post. Because that's not what it is about. I want to collect data.... that's all, I'm not asking for you advice on anything else. But thanks for your input.

@TomGeorge I cant find the exact module any longer x( but it's meant for charging 18650 cells. When I get back in town I can share a pic of the module. :wink:

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I covered that above, the basics I explained are all you need.
Direction, latitude and clear sky.
The rest with uC is not necessary.

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Are you asking me? No, there you measure solar voltage under a light load, which is not a good indicator of received solar power.

If you want to use the Uno A/D instead of an INA, then connect a 6.8 ohm resistor in parallel with each panel. The 6volt panel will then output 0-1.1volt, which you can measure with Aref set to 1.1volt.
Leo..

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On my part of the world, the ones that are still in business are a bit more pragmatic!

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Hi,
In partially shaded situations these days they make micro-inverter panels, sometimes the bane of Amateur Radio operators.

https://unboundsolar.com/blog/what-is-a-micro-inverter#:~:text=A%20micro-inverter%20is%20device,output%20of%20a%20single%20panel.

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Tom... :grinning: :+1: :coffee: :australia:

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