LC2042BM Big Character 4x20 LCD Module, Blue
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Prices updated: 13 Oct 2026
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About this product
The LC2042BM is a big-character LCD module with four rows of twenty characters, listed in blue. Character LCDs of this format are used to show menus, sensor readings and status messages in Arduino and other microcontroller projects. The larger characters make the text easier to read at a distance.
Specifications
- Display type
- Character LCD
- Format
- 4 rows x 20 characters
- Character size
- Big character
- Color
- Blue
Frequently asked questions
Is it compatible with the LiquidCrystal library?
Most 4x20 character LCD modules use an HD44780-compatible controller, which the LiquidCrystal library supports. Confirm the controller marking on the module before wiring it.
How do I wire it to an Arduino?
Parallel character LCDs need around 6 data and control lines plus power, and some modules include an I2C adapter that needs only four connections. Check whether your module has a parallel header or an I2C backpack, then follow the matching pinout in its datasheet.
