About the article

RS232-controlled 8-channel switch:

Using CMOS logic and Visual Basic

Based on a Labs project | October 2011 | Find it here
RS232-controlled 8-channel switch:
The circuit presented in this article enables you to build a software-controlled 8-channel analogue switching unit that will be hard to beat as far as simplicity is concerned. The software for controlling the switch is written in Visual BASIC, and available on disk.
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