Description
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Compatible with HD44780-based 16×2 and 20×4 LCDs
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Operating Voltage: 5V DC
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Communication: I2C (SDA & SCL pins)
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Adjustable contrast via onboard potentiometer
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Reduces required microcontroller pins from 6–8 to only 2
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Onboard PCF8574 I/O expander chip
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Compatible with Arduino LiquidCrystal_I2C library
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Ideal for compact, clean wiring in DIY electronics projects
 


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