Telltronics: Hardware Hacks, Gadgets, and Projects

These pages will describes an increasing number of interesting electronic hardware projects. All are "open source" in that I intend to provide enough detail for a suitably knowledgable reader to duplicate them. But no warranty is provded and these aren't Heathkits. Grabbing the wrong end of a soldering iron can be painful, and your mileage may vary.

Several more project writeups are in the works. Devices for DMX-512 digital theatrical lighting and for home automation are waiting for time to write up a web page.

"Mini-Rig Power" a lower cost, compact 12VDC power distribution unit using Anderson powerpole connectors.
A DMX-512 output interface using a PC Parallel Port. My implementation of the open-source lpr2dmx hardware project includes complete CAD files for the design.
Custom Home Automation. When X10 isn't good enough, roll your own RS485 hardwired interfaces. Just a taste of work in progress, to be written up more completely someday.
Using a Classic Sun Optical Mouse on a PC. This writeup demonstrates that the classic Sun optical mouse actually sends a well-known protocol, and shows how to adapt its 8-pin mini-din cable to act as a PC serial mouse.