LCD, 16×2, Black on RGB backlight positive + extras – Adafruit 398
This is a fancy upgrade to standard 16×2 LCDs, instead of just having blue and white, or red and black, this LCD has black characters on a full color RGB-backlight background! That means you can change the background color to anything you want – red, green, blue, pink, white, purple yellow, teal, salmon, chartreuse, or just leave it off for a neutral background. This LCD is the most daylight readable character LCD we have and is very beautiful and easy to read no matter what colour/brightness you have for the backlight.
These displays are an Adafruit custom design so that you can use them in existing LCD projects and they’ll still work – just that only the red LED will be used. The extra two pins (17 and 18) are for the green and blue LEDs. The LCD has resistors on board already so that you can drive it with 5V logic and the current draw will be ~20mA per LED. There’s a single LED backlight for the entire display, the image above showing 3 colors at once is a composite!
Comes with a single 16×2 RGB backlight LCD, 10K necessary contrast potentiometer and strip of header. Our tutorials and diagrams will have you up and running in no time!
For more information, check out Adafruit’s detailed step-by-step tutorial for both Arduino & CircuitPython!
16×2 RGB LCD Specifications:
- 16 characters wide, 2 rows
- Black text on multi-color background
- Connection port is 0.1″ pitch, single row for easy breadboarding and wiring
- Pins are documented on the back of the LCD to assist in wiring it up
- Single RGB LED backlight included can be dimmed easily with a resistor or PWM and uses much less power than LCD with EL (electroluminescent) backlights
- Each R, G, & B LED has a 200 ohm resistor in series so you can power the backlight from 3V or 5VDC. R forward voltage is ~2.2V, G & B are ~3.4V
- Can be fully controlled with only 6 digital lines! (Any analog/digital pins can be used) and 3 PWM pins for the backlight
- 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
- Comes with 10K necessary contrast potentiometer and strip of header
- Screen Dimensions: 27mm x 71mm / 1.1″ x 2.8″
- The 4 mounting holes are now 3.2mm (.125″