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PU2CLR - PCF8574 Arduino Library | PCF8574
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2EDF7275F - Infineon Technologies
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PU2CLR - PCF8574 Arduino Library | PCF8574
![[SOLVED] Arduino to LCD via PCF8574A](https://i2.wp.com/www.sunrom.com/media/content/1049/PCF8574-I2C-LCD-SCHEMATIC.gif)
[SOLVED] Arduino to LCD via PCF8574A