7-SEG DRIVER PCB (MAX7219)

Seven segment LED displays are visually very charming and are readable from a far viewing distance and wider view angle compared to other types of electronic displays. Small size seven segment LED display modules usually require a forward driving voltage less than +5V and as such they can be driven directly through a microcontroller's I/O pins. However, in order to interface bigger size seven segment modules, which require more current and a higher forward voltage, an additional voltage translation circuit is required to enhance the microcontroller outputs. This display driver allows you to interface 8 large seven segment LED display modules (common-cathode type) to a +5V microcontroller through an SPI interface. It can drive LED segments with forward voltage up to 24V.

Note: This listing is for PCB only and this PCB board deliveried in blue.

Specification

• Size: 4 x 4 inch (= 101 x 101 mm)
• Weight: 14g

Package list

• 1 X Serial driver for large seven segment LED displays (PCB only)

Wiki & External links

Full description of this project can be found at: http://embedded-lab.com/blog/high-voltage-seven-segment-led-display-driver-with-spi-interface/

Note! This is just the PCB board - other needed parts are not included.