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8 input programmable messageboard with lcd & serial interface

Velleman K8045: Programmable LCD Message Display

Velleman K8045

Velleman K8045: 8 Input Programmable Messageboard with LCD & Serial Interface Kit


The LCD display on the K8045 gives you a fun way to create a more customized and high-tech look for your basic applications. Program as many as nine unique messages of up to 16 characters each to display on the backlit LCD screen. Messages are stored in an EEPROM memory and scroll at the press of a button. Set the display mode to show the status of all inputs, display all active inputs, display high priority inputs only, or scroll all inputs in a tickertape fashion. Or, program a default message to display when all inputs are empty.


The messageboard has 8 inputs maxing at 24V. Simply transfer your custom messages from your PC or terminal with software avaiable at www.velleman.be. You can wirelessly transfer your data with RX/TX433 modules. For more infosheets and assembly help, view the documents under the downloads tab.



  • Inputs: 8 inputs (24Vmax)
  • Communication: RS232 serial 2400/N/8/1 no handshaking
  • Power supply: 9-12V DC / 150mA adapter or 2 x 9V AC / 150mA transformer
  • Dimensions: 4.9 x 2.9 x 1.2"


  • Inputs accept dry contacts, open collectors and logic levels
  • Operating Modes:
    • 1) Display the status of all inputs simultaneously
    • 2) Display all active inputs
    • 3) Display active input with highest priority
    • 4) Display text messages in a 'tickertape'-fashion
  • 1 On-board pushbutton available for your application
  • Options:
    • RF wireless link: RX433N + TX433N
    • Supertwist HQ display: LCD1601ASL
    • Bezel enclosure: B8045

Additional Information

Difficulty Level 5


Parts list
English assembly instructions through illustrations, pictures, etc


Complete messenger editing software

Scrolling messenger sourcecode

Messenger edit sourcecode

Info Sheets

Resistor colour code

Connection diagram with LCD message board (K8045)

Connection diagram with relay output module (K8027)

Overview of Velleman modules that are equal to D.I.Y Kits
This sheet is useful when you want to know which modules you could find in the do-it-yourself range of Velleman Kits and minikits.

 Warning: this product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov/product