View source for KS0380 EASY plug 8x8 LED Matrix Module -180° Interface


[[image:0380图片1.png|thumb|500px|right|EASY plug 8x8 LED Matrix Module - 180° Interface ]]

==Introduction== 
What's better than a single LED? Lots of LEDs! A fun way to make a small display is to use an 8x8 matrix. <br>
This module uses HT16K33 chip to drive an 8x8 dot matrix. <br>
Just need to use the I2C communication port of microcontroller to control the dot matrix, which can save more port resources of microcontroller. <br>
The four pin of this module is integrated into a crystal plug, with direction 180°. <br>
All you need to do is connecting the module to control board for communication using an RJ11 cable.<br>
The module’s default I2C communication address is 0x70.<br>

<span style=color:red> '''Special Note:''' <br>
The sensor/module is equipped with the RJ11 6P6C interface, compatible with our keyestudio EASY plug Control Board with RJ11 6P6C interface. <br> If you have the control board of other brands, it is also equipped with the RJ11 6P6C interface but has different internal line sequence, can’t be used compatibly with our sensor/module. </span><br>
<br>

==Technical Details== 
*Interface: Easy plug
*Operating voltage: DC 4.5V-5.5V
*I2C communication address: 0x70
*Dimensions：57.2mm*32.3mm*25mm
*Weight：15.1g
<br>[[File:0380图片2.png|500px|frameless|thumb]]<br>

<br>
==Hookup Guide==
<br>[[File:0380图片3.png|500px|frameless|thumb]]<br>

<br>
==Test Code==
*Download the library:<br>
https://drive.google.com/open?id=1cg90JqypbThqqhquhMEVZLq2CLzeYkrd
<pre>
#include <Matrix.h>
Matrix myMatrix(A4,A5);
uint8_t LedArray1[8]={0x00,0x30,0x48,0x84,0x03,0x33,0xcc,0x00};
uint8_t  LEDArray[8];
void setup(){
myMatrix.begin(0x70);
}

void loop(){
  myMatrix.clear();
  for(int i=0; i<8; i++)
  {
    LEDArray[i]=LedArray1[i];
    for(int j=7; j>=0; j--)
    {
      if((LEDArray[i]&0x01)>0)
      myMatrix.drawPixel(j, i,1);
      LEDArray[i] = LEDArray[i]>>1;
    }
  }
  myMatrix.writeDisplay();
}
</pre>
<br>
<span style="color: red">'''Note:''' before compiling the code, do remember to place the Matrix library folder into directory \Arduino\libraries. Otherwise, fail to compile the code. <br>
For example: C:\Program Files\Arduino\libraries

<br>
==Test Result==
Done uploading the code to the board, power on, you should see the 8*8 matrix displaying a heart image. Shown below.  
<br>[[File:0380图片4.png|500px|frameless|thumb]]<br>

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==Settings Method==
You can set the display image in the code shown below. 
<br>[[File:0380图片5.png|500px|frameless|thumb]]<br>

Place the matrix module as follows: 
<br>[[File:0380图片1.png|500px|frameless|thumb]]<br>
<br>
Then convert 0x00,0x30,0x48,0x84,0x03,0x33,0xcc,0x00 into Binary number:<br>
*0x00 should be 0  0  0  0  0  0  0  0  <br>
*0x30 should be 0  0  1  1  0  0  0  0  <br>
*0x48 should be 0  1  0  0  1  0  0  0  <br>
*0x84 should be 1  0  0  0  0  1  0  0  <br>
*0x03 should be 0  0  0  0  0  0  1  1  <br>
*0x33 should be 0  0  1  1  0  0  1  1  <br>
*0xcc should be 1  1  0  0  1  1  0  0  <br>
*0x00 should be 0  0  0  0  0  0  0  0  <br>
<br>
The first hexadecimal number represents the control of the first column of LEDs. The second data represents the control of the second column of LEDs. And so on.<br>

The settings is converting Hexadecimal data into binary data 8-bit.<br>
The number 0 means LED off, and number 1 means LED on.<br>
The first converted number is controlling the second row of LED on and off. <br>
The seventh number is controlling the eighth row of LED on and off. <br>
The eighth number is controlling the first row of LED on and off. And so on.<br>

<br>
==Resources Download==

https://fs.keyestudio.com/KS0380

<br>

==Buy from ==
*[https://www.keyestudio.com/keyestudio-easy-plug-rj11-88-led-dot-matrix-module-180-degree-interface-for-arduino-stem-p0493-p0493.html  '''Official Website''' ]

*[https://www.aliexpress.com/store/product/Keyestudio-Easy-Plug-RJ11-8-8-LED-Dot-Matrix-Module-180-degree-Interface-for-Arduino-STEM/1452162_32961693482.html?spm=2114.12010611.8148356.9.62776c0e3OQ3rx  Shop on aliexpress ]



[[category:EASY Plug]]