Add External Power Input
Next, we’re going to add a screw terminal for connecting an optional solar panel (or other 5V-12V power) input:
Searching for Components
First, we need to find an appropriate screw terminal.
Introducing Octopart.com
A search for 2.54mm 2 position screw terminal turns up the following results:
If your results view looks different than the one above, use the view switcher tab and switch to “Specs”:
