Hey @Donald23173,
Thanks for the detailed update, it’s been really interesting following your progress with the Sunflower SPM and your solar setup!
Your observations about real-world solar performance are absolutely spot on. Unfortunately, those optimistic panel specs from some vendors rarely reflect actual output, especially under non-ideal conditions (clouds, angle, temperature, etc).
I recall running some experiments on solar panels for a bunch of smart signs to be placed around Newcastle, and even a few degrees of tilt made a noticeable difference in output, so your results resonate.
I can see you’re thinking of experimenting with the FIT0573 flexible panel (5 V 2 A). It’s a reasonable choice given that higher current gives you a buffer for the SPM’s 900 mA input limit. Pairing it with the Sunflower board and protecting it from the elements in a clear acrylic or glass enclosure seems like a practical path forward.
