LCD2002 20x2 Character LCD Display (Blue Backlight)
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Prices updated: 13 Oct 2026
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About this product
A 20x2 character LCD module with an HD44780-compatible controller, showing two lines of 20 characters with white text on a blue backlight. Its extra width over a 16x2 display suits longer labels and multi-value readouts. It runs at 5V and works with the standard Arduino LiquidCrystal library over 8-bit or 4-bit parallel wiring.
Specifications
- Character Format
- 20 x 2 characters
- Controller
- HD44780-compatible
- Interface
- 8-bit / 4-bit parallel
- Operating Voltage
- 5V
- Backlight
- Blue with white text
- Dimensions
- 116 x 37 x 12.5 mm
Frequently asked questions
Which Arduino library should I use with this LCD?
Use the standard LiquidCrystal library. It supports HD44780-compatible displays and can run in 4-bit mode, which needs fewer data pins than 8-bit mode.
Does the display need a contrast adjustment?
Yes. HD44780-compatible modules use the V0 pin to set contrast, usually connected to the wiper of a potentiometer between 5V and GND. Adjust it until the characters are clearly visible.
