【花雕动手做】有趣好玩的音乐可视化系列项目（30）--P6 LED单元板 - 第2页 - DIY/开源硬件专区 - 电子工程世界-论坛

eagler8

吾妻思萌发表于 2022-11-5 17:31 不厉害，头回上手这单元板，老是找不到北，只能一边查资料学习一边发帖，呵呵我当年接触pi的 ...

事业有成，向您学习中......

eagler8 · 发表于2022-11-14 16:04

电源连接器
尽管 LED 是非常高效的光源，但在一个地方获得足够多的 LED，电流确实会增加。单个 32x16或32x32 RGB 矩阵，全倾斜运行（所有像素设置为白色），可能需要近 4 安培的电流！对于64x32矩阵，该数字翻倍。不过，平均而言，显示典型的图形和动画，这些面板将使用更少的... 2A电源通常足以用于单个 32x16 或 32x32 面板，或 4A 用于 64x32 面板。使用额定电流更大的更大电源（例如 10A 电源）没有害处，但切勿使用电压更高的电源（使用 5V，周期）！在这些面板上，电源连接与数据连接是分开的。让我们从连接 5V 电源开始……

eagler8 · 发表于2022-11-14 16:06

面板具有 Molex 式接头，只需插入随附的电源线，注意正确的极性。如果您的电源线在此电源线的另一端带有铲子，则可以将它们拧入 2.1 毫米接线端子适配器。效果很好！不要让暴露的连接器接触金属……你应该用热缩管或电工胶带覆盖它。

eagler8 · 发表于2022-11-14 16:29

找到一张P6 32X16单元板的参考电原理图

eagler8 · 发表于2022-11-14 16:45

自制HUB75接口的ArduinoUNO扩展板

以Proto Shield 原型扩展板为主，加装羊角P16插座，方便于做实验

eagler8 · 发表于2022-11-14 16:50

做好的是这样，可以直接插在Arduino uno开发板上

eagler8 · 发表于2022-11-14 16:54

HUB75接口扩展板接线

UNO HUB75
D2       R1
D3       G1
D4       B1
D5       R2
D6       G2
D7       B2
D8       CLK
D9       OE
A0          A
A1          B
A2          C
A3          STB
GND       GND

eagler8 · 发表于2022-11-14 17:03

点击下载库文件，并安装

https://github.com/adafruit/Adafruit-GFX-Library
https://github.com/adafruit/RGB-matrix-Panel
https://github.com/adafruit/Adafruit_BusIO

eagler8 · 发表于2022-11-15 14:50

【花雕动手做】有趣好玩的音乐可视化系列项目（30）--P6LED单元板

项目程序之一：点亮P6单元板——点与线的简单控制

/*
  【花雕动手做】有趣好玩的音乐可视化系列项目（30）--P6LED单元板
  项目程序之一：点亮P6单元板——点与线的简单控制
*/

#include <Adafruit_GFX.h>   //核心图形库
#include <RGBmatrixPanel.h> //硬件特定库

#define CLK 8 //必须在这个端口上！ （在Mega上使用PIN 11）
#define LAT A3
#define OE  9
#define A   A0
#define B   A1
#define C   A2

//最后一个参数='false'禁用双屏障
RGBmatrixPanel matrix(A, B, C, CLK, LAT, OE, false);

void setup() {
  matrix.begin(); //矩阵开始(启动)
}

void loop() {
  //用红色在0,0处画一个像素
  matrix.drawPixel(0, 0, matrix.Color333(7, 0, 0));
  delay(500);

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  delay(500);

  //用绿色在31,0处画一个像素
  matrix.drawPixel(31, 0, matrix.Color333(0, 7, 0));
  delay(500);

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  delay(500);

  //用蓝色在31,15处画一个像素
  matrix.drawPixel(31, 15, matrix.Color333(0, 0, 7));
  delay(500);

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  delay(500);

  //用白色在0,15处画一个像素
  matrix.drawPixel(0, 15, matrix.Color333(5, 5, 5));
  delay(500);

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  delay(500);

  //用四种颜色在单元板四角各画一个像素
  matrix.drawPixel(0, 0, matrix.Color333(7, 0, 0));
  matrix.drawPixel(31, 0, matrix.Color333(0, 7, 0));
  matrix.drawPixel(31, 15, matrix.Color333(0, 0, 7));
  matrix.drawPixel(0, 15, matrix.Color333(5, 5, 5));
  delay(500);

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  delay(500);

  matrix.drawLine(0, 0, 31, 0, matrix.Color333(7, 0, 0));
  delay(500);

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  delay(500);

  matrix.drawLine(31, 0, 31, 15, matrix.Color333(0, 7, 0));
  delay(500);

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  delay(500);

  matrix.drawLine(0, 15, 31, 15, matrix.Color333(0, 0, 7));
  delay(500);

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  delay(500);

  matrix.drawLine(0, 0, 0, 15, matrix.Color333(5, 5, 5));
  delay(500);

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  delay(500);

  matrix.drawLine(0, 0, 31, 0, matrix.Color333(7, 0, 0));
  matrix.drawLine(31, 0, 31, 15, matrix.Color333(0, 7, 0));
  matrix.drawLine(0, 15, 31, 15, matrix.Color333(0, 0, 7));
  matrix.drawLine(0, 0, 0, 15, matrix.Color333(5, 5, 5));
  delay(500);

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  delay(500);

  matrix.drawLine(0, 0, 31, 15, matrix.Color333(4, 7, 0));
  delay(500);

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  delay(500);

  matrix.drawLine(31, 0, 0, 15, matrix.Color333(4, 7, 0));
  delay(500);

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  delay(500);

  matrix.drawLine(0, 0, 31, 15, matrix.Color333(0, 7, 4));
  matrix.drawLine(31, 0, 0, 15, matrix.Color333(0, 7, 4));
  delay(500);

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  delay(500);

  matrix.drawLine(0, 0, 31, 0, matrix.Color333(7, 0, 0));
  matrix.drawLine(31, 0, 31, 15, matrix.Color333(0, 7, 0));
  matrix.drawLine(0, 15, 31, 15, matrix.Color333(0, 0, 7));
  matrix.drawLine(0, 0, 0, 15, matrix.Color333(5, 5, 5));
  matrix.drawLine(0, 0, 31, 15, matrix.Color333(0, 7, 0));
  matrix.drawLine(31, 0, 0, 15, matrix.Color333(0, 7, 0));
  delay(500);

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  delay(500);

  matrix.drawLine(0, 0, 31, 0, matrix.Color333(7, 0, 0));
  matrix.drawLine(31, 0, 31, 15, matrix.Color333(7, 0, 0));
  matrix.drawLine(0, 15, 31, 15, matrix.Color333(7, 0, 0));
  matrix.drawLine(0, 0, 0, 15, matrix.Color333(7, 0, 0));
  matrix.drawLine(0, 0, 31, 15, matrix.Color333(7, 0, 0));
  matrix.drawLine(31, 0, 0, 15, matrix.Color333(7, 0, 0));
  delay(500);

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  delay(500);

  matrix.drawLine(0, 0, 31, 0, matrix.Color333(0, 7, 0));
  matrix.drawLine(31, 0, 31, 15, matrix.Color333(0, 7, 0));
  matrix.drawLine(0, 15, 31, 15, matrix.Color333(0, 7, 0));
  matrix.drawLine(0, 0, 0, 15, matrix.Color333(0, 7, 0));
  matrix.drawLine(0, 0, 31, 15, matrix.Color333(0, 7, 0));
  matrix.drawLine(31, 0, 0, 15, matrix.Color333(0, 7, 0));
  delay(500);

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  delay(500);

  matrix.drawLine(0, 0, 31, 0, matrix.Color333(0, 0, 7));
  matrix.drawLine(31, 0, 31, 15, matrix.Color333(0, 0, 7));
  matrix.drawLine(0, 15, 31, 15, matrix.Color333(0, 0, 7));
  matrix.drawLine(0, 0, 0, 15, matrix.Color333(0, 0, 7));
  matrix.drawLine(0, 0, 31, 15, matrix.Color333(0, 0, 7));
  matrix.drawLine(31, 0, 0, 15, matrix.Color333(0, 0, 7));
  delay(500);

  matrix.fillScreen(matrix.Color333(0, 0, 0));
  delay(500);
}

eagler8 · 发表于2022-11-15 14:54

实验场景图

eagler8 · 发表于2022-11-15 15:00

实验场景图动态图

eagler8 · 发表于2022-11-15 15:06

实验的视频记录
优酷：https://v.youku.com/v_show/id_XNTkxOTYzNzk4MA==.html?spm=a2hcb.playlsit.page.1
B站：https://www.bilibili.com/video/BV1AD4y147BJ/?vd_source=98c6b1fc23b2787403d97f8d3cc0b7e5

eagler8 · 发表于2022-11-15 15:12

实验接线图

eagler8 · 发表于2022-11-15 15:33

HUB75接口，是个兼容大部分市面LED单元板的通用型接口，具体接线定义有些不同，比如HUB75B\HUB75E等。

这次自制的扩展板，只是专门匹配Arduino UNO开发板的专用板，由于性能限制，最多只能使用32x16，或者32x32的简单控制。

下一张扩展板，准备尝试搭配ESP32开发板，以适应大部分P5\P4\P3的单元板模组，主要规格可能有32x32\64x32\64x64，还有128x64等。

eagler8 · 发表于2022-11-15 15:41

【花雕动手做】有趣好玩的音乐可视化系列项目（30）--P6LED单元板

项目程序之二：点亮P6单元板——显示图形与文字

/*
  【花雕动手做】有趣好玩的音乐可视化系列项目（30）--P6LED单元板
  项目程序之二：点亮P6单元板——显示图形与文字
*/

#include <Adafruit_GFX.h>   
#include <RGBmatrixPanel.h> 

#define CLK 8  
#define LAT A3
#define OE  9
#define A   A0
#define B   A1
#define C   A2
RGBmatrixPanel matrix(A, B, C, CLK, LAT, OE, false);

void setup() {
  matrix.begin();
}

void loop() {
  // draw a pixel in solid white
  matrix.drawPixel(0, 0, matrix.Color333(7, 7, 7));
  delay(500);

  // fix the screen with green
  matrix.fillRect(0, 0, 32, 16, matrix.Color333(0, 7, 0));
  delay(500);

  // draw a box in yellow
  matrix.drawRect(0, 0, 32, 16, matrix.Color333(7, 7, 0));
  delay(500);

  // draw an 'X' in red
  matrix.drawLine(0, 0, 31, 15, matrix.Color333(7, 0, 0));
  matrix.drawLine(31, 0, 0, 15, matrix.Color333(7, 0, 0));
  delay(500);

  // draw a blue circle
  matrix.drawCircle(7, 7, 7, matrix.Color333(0, 0, 7));
  delay(500);

  // fill a violet circle
  matrix.fillCircle(23, 7, 7, matrix.Color333(7, 0, 7));
  delay(500);

  // fill the screen with 'black'
  matrix.fillScreen(matrix.Color333(0, 0, 0));

  // draw some text!
  matrix.setCursor(1, 0);   
  matrix.setTextSize(1);    

  // print each letter with a rainbow color
  matrix.setTextColor(matrix.Color333(7, 0, 0));
  matrix.print('1');
  matrix.setTextColor(matrix.Color333(7, 4, 0));
  matrix.print('6');
  matrix.setTextColor(matrix.Color333(7, 7, 0));
  matrix.print('x');
  matrix.setTextColor(matrix.Color333(4, 7, 0));
  matrix.print('3');
  matrix.setTextColor(matrix.Color333(0, 7, 0));
  matrix.print('2');

  matrix.setCursor(1, 9);   // next line
  matrix.setTextColor(matrix.Color333(0, 7, 7));
  matrix.print('*');
  matrix.setTextColor(matrix.Color333(0, 4, 7));
  matrix.print('R');
  matrix.setTextColor(matrix.Color333(0, 0, 7));
  matrix.print('G');
  matrix.setTextColor(matrix.Color333(4, 0, 7));
  matrix.print('B');
  matrix.setTextColor(matrix.Color333(7, 0, 4));
  matrix.print("*");
  delay(5000);
}

eagler8 · 发表于2022-11-15 15:52

实验场景图

eagler8 · 发表于2022-11-15 15:55

本帖最后由 eagler8 于 2022-11-15 15:59 编辑

实验场景图动态图

LED模组会轮流显示：一个白点、全屏绿色、全屏黄色、一个黄色的矩形框、一个红色的X、一个蓝色的圆、一个填充紫圆、英文字。

eagler8 · 发表于2022-11-15 17:26