├── .arduino-ci.yml ├── .github ├── FUNDING.yml └── workflows │ ├── arduino-lint.yml │ ├── arduino_test_runner.yml │ └── jsoncheck.yml ├── CHANGELOG.md ├── LICENSE ├── PCF8574.cpp ├── PCF8574.h ├── README.md ├── docs ├── PCF8574_I2C_busExpander_Oct_2005.pdf ├── pcf8574_sept_2024.pdf └── pcf8574a_aug_2021.pdf ├── examples ├── PCF8574_Wire1 │ ├── .arduino-ci.yml │ └── PCF8574_Wire1.ino ├── PCF8574_Wire2 │ ├── .arduino-ci.yml │ └── PCF8574_Wire2.ino ├── PCF8574_interrupt │ └── PCF8574_interrupt.ino ├── PCF8574_interrupt_advanced │ └── PCF8574_interrupt_advanced.ino ├── PCF8574_isConnected │ └── PCF8574_isConnected.ino ├── PCF8574_performance │ ├── PCF8574_performance.ino │ └── performance_0.3.5.txt ├── PCF8574_rotaryEncoder │ └── PCF8574_rotaryEncoder.ino ├── PCF8574_select │ └── PCF8574_select.ino ├── PCF8574_test │ └── PCF8574_test.ino ├── PCF8574_test1 │ └── PCF8574_test1.ino ├── PCF8574_test2 │ └── PCF8574_test2.ino ├── PCF8574_test_ESP32 │ ├── .arduino-ci.yml │ └── 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