The Alpha Geek – Geeking Out

Adafruit – Standard LCD 20×4 + Extras – White on Blue

Adafruit 198 Mk01

Adafruit 198 Mk02

Adafruit 198 Mk03

Adafruit: 198

Description

Standard HD44780 LCDs are useful for creating standalone projects.

  • 20 characters wide, 4 rows
  • White text on blue background
  • Connection port is 0.1″ pitch, single row for easy breadboarding and wiring
  • Single LED backlight with a resistor included, you can power it directly from 5V. If it’s too bright for you, it can be dimmed easily with a resistor or PWM and uses much less power than LCD with EL (electroluminescent) backlights
  • Can be fully controlled with only 6 digital lines!
  • Built in character set supports English/Japanese text, see the HD44780 datasheet for the full character set
  • Up to 8 extra characters can be created for custom glyphs or ‘foreign’ language support (like special accents)
  • Comes with necessary contrast potentiometer and strip of header

For more information, check out our detailed step-by-step Arduino+LCD tutorial

We have a generic 20×4 datasheet that has dimensions and pin-locations (the exact model may vary but the pinout, size and protocol information is the same). We also have a HD44780 datasheet with the detailed commands for control.

Don Luc

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