Difference between revisions of "Matrix - Relay"

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(Undo revision 1062 by Yftan (talk))
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[[Matrix - Relay/zh|查看中文]]
 
[[Matrix - Relay/zh|查看中文]]
  
==Introduction==
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==介绍==
 
[[File:relay01.png|thumb|Relay]]
 
[[File:relay01.png|thumb|Relay]]
This is an SPDT relay. Its coil voltage is 5V. The contact current can be up to 10A. It can drive AC or DC high
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这是一个单刀双掷继电器,线圈电压为直流5V,触点电流可达10A,适合驱动直流或交流大功率负载。NO为常开触点,NC为常闭触点,COM为公共触点。当向S引脚施加高电平,继电器线圈导通,此时NO触点断开,NC触点闭合。
  
power loads. NO is Normally Open. NC is Normally Closed. COM is Common. When write high to pin S NO will be open
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==特性==
 
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and NC will be closed.
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==Features==
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* 1 Form C
 
* 1 Form C
* 5V coil voltage, 3.3/5V control signal
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* 5V线圈电压,控制信号为3.3/5V
* Contact current up to 10A
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* 触点电流可达10A
* LED indicator
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* LED指示
* 2.54mm spacing pin
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* 2.54mm排针接口,接线方便,通用性强
  
==How To==
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==使用方法==
===Connection===
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===连接===
*Connect to Tiny4412 SDK (1506)
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*连接到Tiny4412 SDK (1506)
::Connect the module's pin S to GPIO PIN1, V to 5V and G grounded
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::将配件S针脚连接到GPIO PIN1, V接5V,G接地
  
===Code Sample in C Under Linux===
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===Linux下的C示例===
 
<syntaxhighlight lang="c">
 
<syntaxhighlight lang="c">
 
#include <stdio.h>
 
#include <stdio.h>
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</syntaxhighlight>
 
</syntaxhighlight>
  
===Compile and Run===
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===编译并运行示例===
 
<syntaxhighlight lang="bash">
 
<syntaxhighlight lang="bash">
 
git clone http://github.com/friendlyarm/fa-hardware.git
 
git clone http://github.com/friendlyarm/fa-hardware.git
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make
 
make
 
</syntaxhighlight>
 
</syntaxhighlight>
Copy your compiled bin to your board and you are ready to go.
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将编译生成的relay通过ftp上传到开发板上运行即可测试。
  
==Resources==
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==相关资料==

Revision as of 10:56, 12 August 2015

查看中文

1 介绍

Relay

这是一个单刀双掷继电器,线圈电压为直流5V,触点电流可达10A,适合驱动直流或交流大功率负载。NO为常开触点,NC为常闭触点,COM为公共触点。当向S引脚施加高电平,继电器线圈导通,此时NO触点断开,NC触点闭合。

2 特性

  • 1 Form C
  • 5V线圈电压,控制信号为3.3/5V
  • 触点电流可达10A
  • LED指示
  • 2.54mm排针接口,接线方便,通用性强

3 使用方法

3.1 连接

  • 连接到Tiny4412 SDK (1506)
将配件S针脚连接到GPIO PIN1, V接5V,G接地

3.2 Linux下的C示例

#include <stdio.h>
#include <string.h>
#include "libfahw.h"
 
int main(int argc, char ** argv)
{
    char *status = "off";
    if (argc != 2) {
        printf("Set relay on\n");
    } else {
        status = argv[1];
        printf("Set relay %s\n", argv[1]);
    }
 
    int pin = TINY4412_GPIO_PIN1;
    int ret = -1;
    if ((ret = exportGPIOPin(pin)) != 0) {
        printf("exportGPIOPin(%d) failed!", pin);
    }
    if ((ret = setGPIODirection(pin, GPIO_OUT)) != 0) {
        printf("setGPIODirection(%d) failed", pin);
    }
 
    if (strcmp(status, "on") == 0) {
        ret = setGPIOValue(pin, GPIO_LOW);
    } else {
        ret = setGPIOValue(pin, GPIO_HIGH);
    }
    return ret;
}

3.3 编译并运行示例

git clone http://github.com/friendlyarm/fa-hardware.git
cd fa-hardware
cd demo
cd matrix-relay
make

将编译生成的relay通过ftp上传到开发板上运行即可测试。

4 相关资料