MAX7219 8×8 LED Dot Matrix Display Module

The
MAX7219 is an integrated serial input / output common-cathode display
driver, it is connected to a microprocessor with 8-digit 7-segment
digital LED display can also be connected to the bar graph display or 64
separate LED. On B BCD encoder including an on-chip, multi-channel
scanning loop word drive, but also an 8 x 8 static RAM is used to store
each data. Only one external register is used to set the current of each
LED segment.

A
convenient four-wire serial interface can connect all general-purpose
microprocessor. Each data can be addressed in the update does not need
to rewrite all the display. MAX7219 also allows the user to select on
each data coding or non-coding.

The
entire device contains a 150μA low-power shutdown mode, analog and
digital brightness control, a scan-limit register allows the user to
display the 1-8 bits of data, as well as a let all LED light detection
mode.

Only need three IO ports can drive a dot-matrix! Dot-matrix display, flicker-free! Supports cascading!

Features:-

A single module can drive an 8 * 8 common cathode lattice

Module operating voltage: 5V

Module size: 5 cm in length X width 3.2 cm x 1.5 cm

Including four screws hole, aperture 3mm

Module with input and output interface, supports multiple modules cascade