Specifications :

• Display Format: 16 characters x 2 lines
• Character Size: 5 x 8 dots
• Display Color: Blue
• Backlight: LED backlight (controllable via I2C)
• Display Type: STN (Super Twisted Nematic) character LCD
• Controller IC: HD44780 or compatible
• Operating Voltage (LCD only): 5V DC
• Working Temperature: 0°C to 50°C
• Storage Temperature: -10°C to 60°C

I2C Module (Interface Board)

• I2C Address: Default 0x27 or 0x3F (configurable by solder jumpers on some boards)
• Supply Voltage: 5V DC (powered through VCC pin)
• Current Consumption: ~20mA (with backlight on)

• Interface Pins:

  • GND – Ground
  • VCC – +5V Power
  • SDA – Serial Data Line
  • SCL – Serial Clock Line

Dimensions

• LCD Size: ~80mm x 36mm
• Viewing Area: ~64.5mm x 16mm
• Mounting Holes: 4 x (typically M2.5)

Features

• Reduces the number of I/O pins used (only 2 for SDA & SCL)
• Simple connection using I2C protocol
• Contrast adjustment via onboard potentiometer
• Backlight control via software (optional transistor/LED control)
• Compatible with Arduino libraries 

Typical Use Cases

• Arduino projects
• Raspberry Pi GPIO displays
• Sensor data displays
• DIY clocks or meters