Collection of experiments in electronics, magnetism and others, including esoteric subjects like "free energy" (in german).

Interesting information about phase noise.

Atom is a DSL embedded in Haskell used to describe synchronous reactive software systems, primarily intended for realtime control applications. Based on conditional term rewriting, an atom description is composed of a set of rules that defines the state transition behavior of the system at periodic intervals. Other functional HDLs, now abandoned, from the same author: Confluence, HDCaml.
As od 2015-03-25, the domain is no longer in use.

A small Lisp-machine implemented in a Spartan FPGA.

Another GPS logging device. Appears to require Windows.

Fun site about (mostly) hardware hacks.

On-line book about electronic circuits, includes a forum where people ask/answer questions.

Augmenting Hardware Design with Functional Languages. A series of functional languages for hardware design. Confluence and HDLcaml (sp?) were based on OCaml, the newest called "Atom" is based on Haskell.

A free (GPL) program to compute impedances and coupling factors of transmission lines with fairly complex geometries.