Isolated Full-duplex Serial Interface
I would like to build Optoisolated RS232 interface. I’vesearched a little bit, and I came across your design:
Category: Computer-Interface
Printer Port 256 Relays 16K Dot Matrix
Using this circuit on Printer Port, one could drive 256 Relays or 16K LEDs as Dot Matrix display. It can be used to drive a Large size multiplexed LED dot matrix display or Latched...
Printer Port Logic Analyzer
This is a Test Circuit for Logic Analyzer software, with the Simple port circuit. The VB Logic Analyzer works, but is just an example program to test and learn. The speed at which the...
Simple Printer Port Interface
Printer Port Circuit to see the inputs logic state and drive a few outputs. The preset control program helps test out the circuit operation. Use safe 5V Levels. Simple Printer Port Interface, Input-Output –...
