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Search Company for Lalim Parallel Port Software Lalim Parallel Port Control 1.0 in Lalim Parallel Port Software Most of engineering industry using PC to control hardware with using additional I/O card but with Lalim Parallel Port Control you can use your default printer port controlling external device such as switching on/off light or control electronic devices. What does this program [does is] trigger the parallel port (Printer port) 's data pin by your command. For example when you trigger pin2 , your printer port's pin2 becomes +5 volt . With this +5 v |