MAX7219:A convenient Serial input/output common-cathode display drivers,which can interface a microprocessor (µp) to a 7-segment digital LED display of up to 8 digits,bar-graph displays or 64 individual LEDs. MAX7219 can allow users to select encoding or no encoding for each data
Working voltage: 5V;Size:12.8 cmx3.2cmx1.3cm;With 64 fixing screw holes, diameter 3mm;Resolution:32 x 8 LEDs
Application:It is suitable for Raspberry Pi, for Arduino and development boards
Feature:Module with input and output interfaces, support for cascading multiple modules;One external resistor is required to set the segment current for all LEDs.