The library gives easy control over the 16 pins of the PCF8575 chips. Base address = 0x20 + 0..7 depending on address pins A0..A2. PCF8575C 0x20 to 0x27 need pull up in input mode. See #36, to be ...
This repository contains resources related to the Adding Digital I/O To Your Arduino article published on WoolseyWorkshop.com. It is a three-part tutorial describing how to add more digital inputs and ...
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