Technical Specifications
- Display Format: 16 columns × 2 rows (1602)
- Interface: I2C (VCC, GND, SDA, SCL)
- Backlight: Blue LED
- Operating Voltage: 5V DC
- Controller: HD44780 + PCF8574 I2C expander
- I2C Address: 0x27 (default)
- Current Consumption: Low (backlight controllable)
- Dimensions: Standard 16×2 module footprint




















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