Schematics of delabs

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 logic state changes say like 10 M Hz while probing even a PIC or… more »

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. So i made some example circuits and VB programs for students. A demo Milli Volt source,… more »

This circuit uses a R-2R Ladder Resistor Network to convert digital data from PC Printer Port to Analog. This can be used as a Millivolt Source or Programmable Power Supply. This circuit is a R-2R, Digital to Analog Converter. You can replace the R2R… more »