Results tagged #Parallel Port in Circuits
Parallel port programming
The setting of delay timing of program will depend on CPU speed. You can use the timing delay on C+ library so you can set the standard timi...
Parallel Port Break Out Board
Let me begin by saying I built my buffer board with a specific project in mind but I`d like to present it here as more of a general applicat...
Parallel Port Interfacing and Programming
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Parallel Port Interfacing and Programming
In interfacing AC loads, isolation is very important. This because an interfaced circuit that do not isolates the computer from the AC load ...
Design Parallel Port Interface Project PCB
Circuit The following schematic shows the design of a Parallel Port Interface Circuit Diagram using 74HCT373. The 74HC/HCT373 are high-speed...
Parallel Port Relay Interface Circuit
Below are three examples of controlling a relay from the PC`s parallel printer port (LPT1 or LPT2). Figure A shows a solid state relay contr...
Parallel Port Interface with relay
Below are three examples of controlling a relay from the PC's parallel printer port (LPT1 or LPT2). Figure A shows a solid state relay contr...
Data recieving from printer Port LTP1
The diagram below shows 5 switches connected to the 5 input lines of the parallel port. An external 5 volt power supply is used to provide h...
PC parallel port Null Printer Adapter
This circuit is a simple adapter for PC parallel port to think that there is a printer connected to computer. This adapter is useful for tes...
Simple Parallel (Printer) Port Interface
This is the basic interface I used as part of my Computerized Room project. This is the parallel interface only. The 8 bit input card can be...
Null Printer Adapter
This circuit is a simple adapter for PC parallel port to think that there is a printer connected to computer. This adapter is useful for tes...
Controlling Devices Through a Computer`s Parallel Port
This is a very easy and fun to build project that will allow you to control up to eight external devices through your computer`s parallel po...
Parallel port controls arbitrary-waveform generator
You can use the parallel port of your PC and a few additional components to generate a powerful, easy-to-use arbitrary-waveform generator. B...
circuits and programs to show how to use PC parallel port output
PC parallel port can be very useful I/O channel for connecting your own circuits to PC. The PC`s parallel port can be used to perform some v...