MAX7219 is an integrated serial input/output common-cathode display drivers, which connects the microprocessor and 8 digit 7-segment digital LED display. \

You may also connect a bar graph display or 64 separate LED, Including an on-chip type-B LCD encoders, multi-channel scanning loop, segment word driver, but also a 8x8 static RAM that stores 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 common microprocessor.

Each data can be addressed in the update without rewriting all displays.

MAX7219 also allows the user to select each data encoding or no coding.

The entire device includes a 150μA low-power shutdown mode, analog and digital brightness control, a scan-limit register allows the user to display 1-8 bit data, there is an all LED light detection mode.

Only need three I/O ports can drive eight digital tube!

PCB board four corners of the fixed copper stud, which can effectively prevent it from short circuit.

0.36 inch and four digital tube one common cathode LED

The module compatible of 5v/3.3v micro-controller(51/AVR/STM32...)

Wiring instructions (a program, for example, you can pick any IO port definition can be modified in the program):

VCC→5V

GND→GND

DIN →P00

CS   →P01

CLK→P02

Note:

1) DO NOT reverse VCC and GND, or it would burn the chip.

2) 51 MCU P0 port requires pull-up resistor, if your device does not have a pull-up resistor can be connected to other ports data lines

Package includes:

1PC X MAX7219 8 Digital Segment Digital LED Display Tube

Note: all the descriptions and prices are subject to change without prior notice.

Free Shipping: No

Shipping Weight/Unit(g): 0.00

Std. Packing Qty. (pcs): 1

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