Category: Computer-Interface

Isolated Full-duplex Serial Interface

I would like to build Optoisolated RS232 interface. I’vesearched a little bit, and I came across your design: (more…)

How can I get a software for an electronics work bench for my pc. mail from EA I did not understand about (more…)

Using this circuit on Printer Port, one could drive 256 Relays or 16K LEDs as Dot Matrix display. It can be used (more…)

This is a Test Circuit for Logic Analyzer software, with the Simple port circuit. The VB Logic Analyzer works, but is just (more…)

Printer Port Circuit to see the inputs logic state and drive a few outputs. The preset control program helps test out the (more…)

This circuit uses a R-2R Ladder Resistor Network to convert digital data from PC Printer Port to Analog. This can be used (more…)