Month: June 2007

Binary marble adding machine

Binary marble adding machine

Matthias Wandel has the coolest project ever, a binary marble computer – It had occurred to me that perhaps with an insane amount of perseverance, it might be possible to build a whole computer that runs on marbles. My second marble machine was however much less based on logic – more on just making lots […]

Parallel port oscilloscope

Parallel port oscilloscope

Here’s a pretty nice parallel port oscilloscope – This oscilloscope uses the SPP or EPP parallel port (LPT1) for reading the data from ADC. If your LPT1 is an ECP then the program automatically switches the LPT1 in byte mode (normal mode). BUT, not all parallel ports (LPT ports) are bidirectional. “Bidirectional” means, that except […]