Solar Controller

A much smaller version here: https://www.thingiverse.com/thing:2357657

Update:
I extended the sides where the LM2596 is placed.

YouTube: https://youtu.be/wc3J8u5KAgE

This is a solar controller that can turn an 18v or 20v solar panel input into a 12v output utilizing the LM2596 DC-DC step-down. I design this for a Raspberry PI 3 with a 7-inch monitor to run on strictly solar power but can be used for other devices as well.

LM2596 how to adjust voltage: https://youtu.be/s7_B0LqUKuM