20×4 LCD Screen with I2C (Blue)

Features:

• Provides I2C to parallel data conversion
• Backlight enable jumper
• Contrast control potentiometer
• 0x27 I2C default address.  Solder jumper selectable from 0x20 – 0x27
• 100kHz I2C clock speed
• 5V operation typical, but also operates at 3.3V.