I've been putting together a smart home over the past few months, and these are the most important things I've learned.

Eric Carr] came up with an interesting build for the 555 contest earlier ... we’re happy to feature at least part of his 555-based computer on Hack A Day. From the post on the 555-based memory ...

It’s a jaw-dropping build that makes you shake your head in the totality of engineering perfection. Here’s a project that nails this achievement. It’s a homebrew computer, made out of relays ...