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How to connect SMOKE DETECTOR SENSOR with KC868-A64?

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How to connect SMOKE DETECTOR SENSOR with KC868-A64?
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#12
07-07-2024, 11:19 PM
I set i2c address for digital input like this: PCF8575 pcf8575_in(0x24,15,4);
and i2c address for relay output like this: PCF8575 pcf8575_out(0x24,15,4);

WHY use same i2c address for INPUT and OUTPUT???
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RE: How to connect SMOKE DETECTOR SENSOR with KC868-A64? - by admin - 07-07-2024, 11:19 PM

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