Microcontroller LED Display Module for Arduino with Four Wire Interface

Features:
* Integrated serial input/output common cathode display driver, it connects the microprocessor to 8-bit 7-segment digital LED display, can also connect bar graph display or 64 independent LEDs. It includes an on-chip B-type for BCD encoder, multiplexer scan loop, segment word driver, and an 8*8 static for RAM to store each data. Only external register is used to set the segment current of each LED.
* A convenient four-wire serial interface can be connected to all common microprocessors. Each data can be addressed without rewriting all displays when updating. also allows the user to choose to encode or not encode each data.
* The whole device includes a 150μA low-power shutdown mode, analog and digital brightness control, a scan limit register allows the user to display 1-8 bits of data, and a detection mode that makes all LEDs light up.
* Only 3 IO ports are needed to drive 1 dot for matrix! No flicker when the dot for matrix display! Support cascading!

Specifications:
Part name: module
Material: PCB circuit board
Color: red, blue, green (optional)
A single module can drive an 8*8 common cathode dot for matrix
Module operating voltage: 5V
Module size: 12.8cm long x 3.2cm wide x 1.3cm high
With 64 fixing screw holes, 3mm aperture
The module has input and output interfaces and supports multiple module cascades
Wiring instructions: (as follows)
1. The left side of the module is the input port, and the right side is the output port.
2. When controlling a single module, just connect the input port to the CPU
3. When multiple modules are cascaded, the input of the first module is connected to the CPU, the output is connected to the input of the second module, the output of the second module is connected to the input of the third module, and so on...
Take 51 microcontroller as an example: (as follows)
VCC → 5V
GND → GND
DIN → P2.2
CS → P2.1
CLK → P2.0

Package Contents:
1 x Module
1 x 20CM line 5P

Note:
1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
2.Please allow slight manual measurement deviation for the data.