Serial 4-Digit 7-Segment Display Mini-Board



A seven-segment display is a form of display device that is an alternative to the more complex dot-matrix displays. Seven-segment displays are commonly used in electronics as a method of displaying decimal numeric feedback on the internal operations of devices.



The MAX7219 are compact, serial input/output common-cathode display drivers that interface microprocessors to 7-segment numeric LED displays. Included on-chip are a BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and an 8x8 static RAM that stores each digit.




  • MAX7219 SPI Interface, LED Display Drivers on-board
  • Four red 0.5" Common-Cathode LED Displays on-board
  • Easily add digital display output to your project with minimal interface lines
  • Example basic code library provided
  • Compact and Easy To Mount Board
  • Standard 10-pin IDC header or 6-pin header for proto board direct connect
  • Ideal for use with development and control boards
  • High quality double sided printed circuit board with silk-screen and mounting holes
  • Fully assembled and tested