psxinterfaceWhen I put for the first time my hands on a PlayStation, I liked very much the Sony controller. So I tried to find informations about the communication protocol between joypad and console. I found nothing.

So I borrowed an oscilloscope (my Zeroplus LAP-C arrived years later) and tried to reverse engineer the protocol.

This was a test program to help me in the reverse engineering, because the 2 channels of oscilloscope were not enough.

psxinterfacehwThe program, with the aid of a simple hardware interface connected to then PC parallel port, can generate a data sequence on any output pins while reading and recording status of every controller signal

MP3 Jukebox

juke1My first MP3 jukeboxe, built when there were no iPod, creative Nomads or Diamond RIOs…  ;)

It was PC-based, obvoiusly, I never had the time to complete the stand-alone version with hardware decoder.

 I’ve made the first version, with a custom made case with keypad and 2×16 LCD (it was an old telecommunication device) and then a second version with 4×20 LCD and a little box with keypad, fixed to a cabinet door hiding the PC from view.

juke2

The PC, a modest Pentium 133 with 20 Gb HD, boot with a special version of Windows98 that allows the power off on the fly, and loads only winamp, the LCD plugin, the network subsystem and a VNC server for remote management. An internal X10 receiver allows me to power the device and send some command via my home automation system.