How to Use Voltage Regulator

I bought a box of 78xx voltage linear regulators to step down 5 VDC USB power to 3 VDC to eventually use to power my ESP32 microprocessor I am building a project with. It did not work properly, because I didn't wire it up correctly. Fortunately, I was just testing it, so nothing got fried in the process. But I'm learning.

The Poison Plastic.

"You know PVC and you don't know PVC: "New car smell? New shower curtain smell? That's the smell of poisonous chemicals off-gassing from the PVC."

The Real Truth About Living Off Grid With Solar Energy

One of the things that attracts me to the off-grid life style is how integrated conservation has to be in -- you have to think a lot about what you consume in energy and the waste you generate. This video talks about how careful you have to be with your energy consumption when you are relying on the sun to keep the lights on.