Monthly Archives: October 2016

Field Phone Morse Decoder

A field phone allows voice communication between your house and your barn or whatever. You can also use the key switches on the ring interface modules to send Morse back and forth. Why not add a Raspberry Pi to decode Morse code messages, and then control something with those messages? For this demo, we used […]

Solar Panel Principles

Our previous post, Ground Solar, Part I, attracted a lot of visitors in only a few days. Before getting into more about our hurricane experience, it would be great to fill in the gaps with some general principles that are good to know when evaluating solar panels. Last time, we gave a homework assignment, and […]

Ground Solar, Part I

Recently, power went out for three days during and after Hurricane Matthew. Fortunately, we’ve been working with solar for a while. To keep our freezer and refrigerators running enough (about 12 hours per day) to keep things cool, we set up a ground-mounted solar system. This is a fancy term for “we just put the […]