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I²C tester

I²C tester
There can be no doubt that the I²C bus has become the de facta standard for communication between ICs in audio and video equipment. The three wire bus, invented by Philips, provides an intelligent way of exchanging data between the increasingly complex ICs in such equipment. Normally, an oscilloscope or a logic analyser is used to test the functions in an I²C system. Since an oscilloscope is sometimes inadequate, and a logic analyser costly or not available, a good, low-cost alternative to these instruments is described in this article.
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