Ioperm exe version 2.08/30/2023 ![]() ![]() NOTE: The I/O port level controlling details here has proven to work well with parallel ports on the PC motherboard and expansion cards connected to ISA bus. To damage the parallel port on that card, replacing it is easy and inexpensive. Has an extra parallel port and use it for your experiment. Safest bet is to buy an inexpensive I/O card which May be expensive (in many cases it it is cheaper to replace the whole Motherboard (like in many new computers) repairing damaged parallel port If the parallel port is integrated to the WARNING: PC parallel port can be damaged quite easily if you make mistakes This document tries to show those tricks in easy to understand way. The port is very easy to use when you first understand some basic tricks. The PC's parallel port can be used to perform some very amusing hardware interfacing experiments. PC parallel port can be very useful I/O channel for connecting your Notes on different parallel port versions.Notes on parallel port operation during computer boot-up.Parallel port software registers technical summary.Reading the input pins in parallel port input pins.Mains power controlling with parallel port.Building your own relay controlling circuits.Controlling some real world electronics.Parallel port controlling in Windows programs.How to connect circuits to parallel port.For Spanish version click here Parallel port interfacing made easy: Simple circuits and programs to show how to use PC parallel port output capabilities ![]()
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