ArduWiki: 새 문서: {{#seo:|title=Arduino维基：Arduino 8x8点阵（8x8 dot matrix, MAX7219）|title_mode=append|keywords=Arduino, 信息科学, 创客学习, 性能评估, 8x8点阵, Arduino项目, 毕业设计项目, Arduino示例代码|description=介绍如何使用Arduino控制8x8点阵（基本信息、电路、示例代码）。可用于信息科学和创客课程。8x8点阵（8x8 dot matrix, MAX7219）}} class=coders100 将LED排列成...

2025-03-20T11:39:30Z

새 문서: {{#seo:|title=Arduino维基：Arduino 8x8点阵（8x8 dot matrix, MAX7219）|title_mode=append|keywords=Arduino, 信息科学, 创客学习, 性能评估, 8x8点阵, Arduino项目, 毕业设计项目, Arduino示例代码|description=介绍如何使用Arduino控制8x8点阵（基本信息、电路、示例代码）。可用于信息科学和创客课程。8x8点阵（8x8 dot matrix, MAX7219）}} center|class=coders100 将LED排列成...

새 문서

{{#seo:|title=Arduino维基：Arduino 8x8点阵（8x8 dot matrix, MAX7219）|title_mode=append|keywords=Arduino, 信息科学, 创客学习, 性能评估, 8x8点阵, Arduino项目, 毕业设计项目, Arduino示例代码|description=介绍如何使用Arduino控制8x8点阵（基本信息、电路、示例代码）。可用于信息科学和创客课程。8x8点阵（8x8 dot matrix, MAX7219）}}
[[File:도트매트릭스대표이미지.jpg|center|class=coders100]]
将LED排列成8x8网格的器件。

使用MAX7219，除电源引脚外只需3个引脚即可控制。

可以连接多个点阵模块一起使用。

== '''规格''' ==
* 工作电压：5V
* 工作电流：320mA ~ 2A

== '''所需硬件''' ==
* 点阵模块
* Arduino

== '''连接''' ==
* 运行示例代码的连接

{| class="wikitable"
| colspan="1" rowspan="1" |Dot matrix
| colspan="1" rowspan="1" |Arduino
|-
| colspan="1" rowspan="1" |VCC
| colspan="1" rowspan="1" |5V
|-
| colspan="1" rowspan="1" |GND
| colspan="1" rowspan="1" |GND
|-
| colspan="1" rowspan="1" |DIN
| colspan="1" rowspan="1" |D12
|-
| colspan="1" rowspan="1" |CS
| colspan="1" rowspan="1" |D11
|-
| colspan="1" rowspan="1" |CLK
| colspan="1" rowspan="1" |D10
|}
[[File:Max7219 예제코드용 회로.png|center|class=coders100]]

* 使用两个或更多点阵时的连接

{| class="wikitable"
| colspan="1" rowspan="1" |Left Dot Matrix
| colspan="1" rowspan="1" |Right Dot Matrix
|-
| colspan="1" rowspan="1" |VCC
| colspan="1" rowspan="1" |VCC
|-
| colspan="1" rowspan="1" |GND
| colspan="1" rowspan="1" |GND
|-
| colspan="1" rowspan="1" |DOUT
| colspan="1" rowspan="1" |DIN
|-
| colspan="1" rowspan="1" |CLK
| colspan="1" rowspan="1" |CLK
|-
| colspan="1" rowspan="1" |CS
| colspan="1" rowspan="1" |CS
|}
[[File:Max7219 두개 이상 회로.png|center|class=coders100]]

== '''Library''' ==

* LedControl
* [[Arduino Libraries]]

== '''示例代码''' ==
<syntaxhighlight lang="c++" line="1">
#include "LedControl.h" // Library call for using the dot matrix

#define dataIn 12 // Use pin 12 for DIN
#define cs 11 // Use pin 11 for CS
#define clk 10 // Use pin 10 for CLK

LedControl lc = LedControl(dataIn, clk, cs, 1); // LedControl('DIN pin number', 'CLK pin number', 'CS pin number', 'number of dot matrices')

void setup() {
lc.shutdown(0, false); // Code to wake up the dot matrix. shutdown('address of the dot matrix to specify', 'false: wake up')
lc.setIntensity(0, 8); // Set brightness. setIntensity('address of the dot matrix to specify','brightness value (0~15)')
lc.clearDisplay(0); // Initialization before use. clearDisplay('address of the dot matrix to specify')
}

void loop() // Blink the dot matrix for 1 second.
{
// Turn on the LEDs of the dot matrix.
for (int row = 0; row < 8; row++)
{
for (int col = 0; col < 8; col++)
{
lc.setLed(0, col, row, true);
}
}
delay(1000);
// Turn off the LEDs of the dot matrix.
for (int row = 0; row < 8; row++)
{
for (int col = 0; col < 8; col++)
{
lc.setLed(0, col, row, false);
}
}
delay(1000);
}

</syntaxhighlight>

8x8 dot matrix(MAX7219) CN - 편집 역사