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Delphi: Using Dallas MicroLan (aka 1-wire) DS2408 8 bit I/O chip

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This particular tutorial is more than usually sketchy... please don't judge my other tutorials from this. You will find extensive commentary in the source code and helpfile. (Click on the "source code and helpfile" link to download a self extracting archive with the Delphi sourcecode and a helpfile.) To compile that code, you also need the Dallas unit IBTMEXPW.PAS which is included with the TMEX SDK. You must compile to code, to put the unique ID of your DS2408 into it, and possibly change the adapter type and port number. (These matters are documented within the code.)

The DS2408 is an 8 channel addressable switch, very like a parallel i/o chip, e.g. 6522 or 6821.

The program I've provided in the zip isn't perfect, but it will give you a head start with writing programs to read from or write to the chip's i/o lines.

For more on the MicroLan and why it's cool, see... My guide to MicroLan

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