HD44780 16x2, I2C backpack included, blue backlight
| Rows | 2 |
|---|---|
| Type | Character LCD |
| Columns | 16 |
| Voltage | 5V |
| Backlight | Blue/White |
| Interface | I2C (via PCF8574) |
Classic HD44780 16-character × 2-line LCD with an I2C backpack pre-soldered — reducing the wiring from 6+ pins down to just 2 (SDA + SCL). Blue backlight, 5V operation, and direct LiquidCrystal_I2C library support in Arduino IDE.
The PCF8574 backpack is typically at I2C address 0x27. If you have address conflicts, solder the A0/A1/A2 jumpers on the backpack to change address. Use the LiquidCrystal_I2C library — initialize with LiquidCrystal_I2C lcd(0x27, 16, 2). If display shows only blocks, adjust the contrast potentiometer on the backpack.
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