The PCF8574_LH library provides a simple interface for controlling the PCF8574 I/O expander using the I2C communication protocol. It allows you to read and write values to the PCF8574's registers, ...
+++ title = "Rotary encoder with non-polling (interrupt based) switches from PCF8574" description = "" tags = [ "arduino", "digital-io", "library", "button-press ...
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