We sell tons of lovely character LCDs for use with Arduino, they are extremely common and a fast way to have your project show status messages. This tutorial will show how you can easily connect a character LCD, either 16×2 or 20×4.
The LCDs we sell at Adafruit have a low power LED backlight, run on +5v and require only 6 data pins to talk to. You can use any data pins you want!
This tutorial will cover character LCDs carried at Adafruit - such as our “standard” blue&white 16×2, RGB 16×2 LCDs, “standard” blue&white 20×4 and RGB 20×4.