• I2C 2004A LCD display module with blue backlight for Arduino, featuring a 20x4 character layout.
  • I2C 2004A LCD Display Module showing adjustable contrast variable resistor for clear character display.
  • I2C 2004A 20x4 LCD Display Module with blue backlight, ideal for Arduino and microcontroller projects.
  • I2C 2004A LCD Display Module with blue backlight, supporting 20x4 characters, designed for Arduino applications.
  • I2C 2004A 20x4 LCD Display Module with blue backlight and dimensions, suitable for Arduino projects.
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I2C 2004A 20x4 LCD Display Module with Blue Backlight for Arduino

I2C 2004A 20x4 LCD Display Module with Blue Backlight for Arduino

HK$65.00
HK$65.00
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Delivery Options

  • Local delivery within Hong Kong and in-store pickup.​
  • Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.​
  • Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).​
  • Estimated delivery time: 1–3 business days after dispatch (Hong Kong).​
  • In-store pickup details (location and time) will be confirmed by email or phone message.​
  • Delivery times are estimates and may be affected by weather or unforeseen circumstances.​

This I2C 2004A LCD Display Module features the SPLC780 controller and a clear blue backlight, supporting 20 characters by 4 lines. Designed for Arduino and other microcontrollers, it uses an I2C interface for simplified wiring and easy integration.

Key Features:

  • Display Size: 76.0mm x 26.0mm
  • Dot Size: 0.55mm x 0.55mm
  • Character Size: Approximately 29.5mm x 47.5mm
  • Display Content: 20 characters x 4 lines
  • Operating Voltage: 5V
  • Operating Current: 2.0mA (excluding backlight)
  • Operating Temperature: -10°C to +60°C
  • Storage Temperature: -20°C to +70°C
  • Controller: SPLC780
  • Interface Mode: I2C (single-row serial interface)
  • Backlight Color: Blue

Pin Description:

  • Pin 1 (VSS): Ground
  • Pin 2 (VDD): 5V Power Supply
  • Pin 3 (VO): Contrast adjustment terminal; connect to a 10k potentiometer for contrast tuning
  • Pin 4 (RS): Register select (high for data register, low for instruction register)
  • Pin 5 (R/W): Read/Write control (high for read, low for write)
  • Pin 6 (E): Enable pin; triggers command execution on high-to-low transition
  • Pins 7-14 (D0-D7): 8-bit bidirectional data lines (can be set to 4-bit or 8-bit mode)
  • Pin 15 (BLA): Backlight power supply positive
  • Pin 16 (BLK): Backlight power supply negative

Note:
Ensure correct wiring to avoid damage from reversed polarity.

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