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Electronics Gate
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I2C - PCF8574 LCD 16x2 Resources - EasyEDA
I2C PCF8574 20x4 LCD - ME Labs Forums

Pcf8574 Pinout

Pcf8574 I2c Lcd Schematic

Interfacing Arduino with I2C LCD - Arduino Projects

Using an I²C LCD Display with a Raspberry Pi | Rototron

Serial LCD Interface I2C – Microcontroller Based Projects

Electronics Gate