And https://www.printables.com/model/163087-stackable-pcb-standoff for the nice standoffs for my Pi hats

Also a big thanks to @scott for the recommendations advice and introducing me to UUGear

I also looked into wind, I’ve a golden windmill to scare away birds I 3d printed and wondered if that’d be an intermittent power source to trickle charge but the costs ballooned higher than the entire project

The witty pi was meant to help with this by letting me schedule shutdowns to conserve power as well as safely powering down the pi when voltage got low, but now it’s indoors it’ll give me USB-C and a reliable power switch until spring when I get bigger 5v panels

Unfortunately all 4 solar cells when placed in parallel put out ~0.2mA @ 3v, well below the 190mA @ 5v I need, the 10% loss from conversion, or the extra current to charge the battery. Now that winter approaches the British sun won’t be giving much more

I had hoped to run this on the balcony with #solar after the death of a marguerite, I’ve an Amigo Pro #charging board with 4000mah Lithium #battery and 4 x 3v 200mah solar cells and a 5v regulator

This is a combination of a Pimoroni grow hat/pump/sensor, UUGear witty pi 4 mini power management board, and a Pi zero w 2, combined with a Kalanchoe plant