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Serial Enabled 20x4 LCD - Black on Green 5V

Serial Enabled 20x4 LCD - Black on Green 5V
Serial Enabled 20x4 LCD - Black on Green 5VSerial Enabled 20x4 LCD - Black on Green 5VSerial Enabled 20x4 LCD - Black on Green 5VSerial Enabled 20x4 LCD - Black on Green 5V
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SKU:  PPLCD-09568
Part Number:  LCD-09568
Brand:  SparkFun

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  (3 Reviews)

This is the latest evolution of our serial LCD. Included on a single board is a 20x4 LCD and an embedded circuit based around a PIC 16F88. The on-board PIC takes a TTL serial input and prints the characters it receives onto the LCD. The installed firmware also allows for a number of special commands so you can clear the screen, adjust the backlight brightness, turn the display on/off, and more.

Communication with SerLCD requires 5V TTL serial at a default baud rate of 9600bps (8-N-1). You can adjust the baud to any standard rate between 2400 and 38400bps. The power (VDD), ground (GND) and RX pins are all broken out to both a 0.1" pitch header as well as a 3-pin JST connector.

SerLCD has the ability to dim the backlight to conserve power if needed. There is also a potentiometer on the back of the display to adjust the contrast.

This LCD makes for a great gift, because it can be used for so many different projects! For more gift ideas check out the SparkFun Gift Guide!


  • Embedded PIC 16F88 utilizes onboard UART for greater communication accuracy
  • 20x4 Black on Green LCD
  • Adjustable baud rates of 2400, 4800, 9600 (default), 14400, 19200 and 38400
  • Operational Backspace
  • Greater processing speed at 10MHz
  • Incoming buffer stores up to 80 characters
  • Backlight transistor can handle up to 1A
  • Pulse width modulation of backlight allows direct control of backlight brightness and current consumption
  • All surface mount design allows a backpack that is half the size of the original
  • Faster boot-up time
  • Boot-up display can be turned on/off via firmware
  • User definable splash screen


  • PCB: 105 x 59.9 mm
  • LCD: 87.3 x 41.8 mm


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Customer Reviews
Average Rating (3 Reviews):  
Write a Review and share your opinions!

High quality nice bright display, but not European version.
Friday, 1 April 2016  |  Samo

I've been very pleased with the quality of the display, the screen has a nice brightness and letters are clear and legible, each one 5 x 8 pixels. The serial interface works well only using up a single Arduino I/O pin for all communication, it also seems


2 of 2 people found this review helpful.

Does as advertised with a few niggles
Monday, 2 March 2015  |  Doug

On the plus side, once it's been set-up it works a treat, noting that there is a hint of interference from floursecent lighting under some conditions when the display is dimmed. When operating at 9600 baud I had no issues at all, however, initial attempt


2 of 2 people found this review helpful.

Just the job
Monday, 28 July 2014  |  Jim

Perfect for the application. Up and running within an hour. The screen positions needed a bit of working out but the relevant info is there on the data sheet.


2 of 2 people found this review helpful.