Difference between revisions of "Matrix - Relay"

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This is an SPDT relay. Its supply voltage is 5V and current on-contact is up to 10A. It can drive AC or DC high power loads. NO is Normally Open. NC is Normally Closed. COM is Common. When writing high to pin S NO will be open and NC will be closed.
 
This is an SPDT relay. Its supply voltage is 5V and current on-contact is up to 10A. It can drive AC or DC high power loads. NO is Normally Open. NC is Normally Closed. COM is Common. When writing high to pin S NO will be open and NC will be closed.
  
 +
 +
==硬件连接==
 +
===连接NanoPi M1===
 +
参考下图连接模块：<br>
 +
[[File:Matrix-Relay_nanopi_m1.jpg|frameless|600px|Matrix-Relay_nanopi_m1]]
 +
 +
连接说明：
 +
{| class="wikitable"
 +
|-
 +
|Matrix-Relay || NanoPi M1
 +
|-
 +
|S    || Pin7
 +
|-
 +
|V    || Pin4
 +
|-
 +
|G    || Pin6
 +
|}
 +
 +
===连接NanoPi 2===
 +
参考下图连接模块：<br>
 +
[[File:Matrix-Relay_nanopi_2.jpg|frameless|600px|Matrix-Relay_nanopi_2]]
 +
 +
连接说明：
 +
{| class="wikitable"
 +
|-
 +
|Matrix-Relay || NanoPi 2
 +
|-
 +
|S    || Pin7
 +
|-
 +
|V    || Pin4
 +
|-
 +
|G    || Pin6
 +
|}
 +
 +
===连接NanoPi M2 / NanoPi 2 Fire===
 +
NanoPi M2和NanoPi 2 Fire的40 Pin引脚定义是一模一样的，所以它们操作Matrix配件的步骤是一样的，这里仅以NanoPi M2为例。<br>
 +
参考下图连接模块：<br>
 +
[[File:Matrix-Relay_nanopi_m2.jpg|frameless|600px|Matrix-Relay_nanopi_m2]]
 +
 +
连接说明：
 +
{| class="wikitable"
 +
|-
 +
|Matrix-Relay || NanoPi M2
 +
|-
 +
|S    || Pin7
 +
|-
 +
|V    || Pin4
 +
|-
 +
|G    || Pin6
 +
|}
 +
 +
===连接NanoPC-T2===
 +
参考下图连接模块：<br>
 +
[[File:Matrix-Relay_NanoPC-T2.jpg|frameless|600px|Matrix-Relay_NanoPC-T2]]
 +
 +
连接说明：
 +
{| class="wikitable"
 +
|-
 +
|Matrix-Relay || NanoPC-T2
 +
|-
 +
|S    || Pin15
 +
|-
 +
|V    || Pin29
 +
|-
 +
|G    || Pin30
 +
|}
 +
 +
==编译运行测试程序==
 +
启动开发板并运行Debian系统，进入系统后克隆Matrix代码仓库：
 +
<syntaxhighlight lang="bash">
 +
$ apt-get update && apt-get install git
 +
$ git clone https://github.com/friendlyarm/matrix.git
 +
</syntaxhighlight>
 +
克隆完成后会得到一个名为matrix的目录。
 +
 +
编译并安装Matrix：
 +
<syntaxhighlight lang="bash">
 +
$ cd matrix
 +
$ make && make install
 +
</syntaxhighlight>
 +
 +
运行测试程序：
 +
<syntaxhighlight lang="bash">
 +
$ matrix-gpio_out
 +
</syntaxhighlight>
 +
注意：此模块并不支持热插拔，启动系统前需要确保硬件连接正确。<br>
 +
运行效果如下：<br>
 +
<syntaxhighlight lang="bash">
 +
1: gpio status change
 +
2: gpio status change
 +
3: gpio status change
 +
4: gpio status change
 +
5: gpio status change
 +
</syntaxhighlight>
 +
 +
==代码说明==
 +
所有的开发板都共用一套Matrix代码，本模块的测试示例代码为matrix-gpio_out，内容如下:
 +
<syntaxhighlight lang="c">
 +
int main(int argc, char ** argv)
 +
{
 +
    int pin = GPIO_PIN(7);
 +
    int i, value, board;
 +
    int ret = -1;
 +
   
 +
    if ((board = boardInit()) < 0) {
 +
        printf("Fail to init board\n");
 +
        return -1;
 +
    }
 +
    if (board == BOARD_NANOPI_T2)
 +
        pin = GPIO_PIN(15);
 +
   
 +
    if (argc == 2)
 +
        pin = GPIO_PIN(atoi(argv[1]));
 +
    if ((ret = exportGPIOPin(pin)) == -1) { 
 +
        printf("exportGPIOPin(%d) failed\n", pin);
 +
    }
 +
    if ((ret = setGPIODirection(pin, GPIO_OUT)) == -1) {
 +
        printf("setGPIODirection(%d) failed\n", pin);
 +
    }
 +
    for (i = 0; i < STATUS_CHANGE_TIMES; i++) {
 +
        if (i % 2) {
 +
            value = GPIO_HIGH;
 +
        } else {
 +
            value = GPIO_LOW;
 +
        }
 +
        if ((ret = setGPIOValue(pin, value)) > 0) {
 +
            printf("%d: GPIO_PIN(%d) value is %d\n", i+1, pin, value);
 +
        } else {
 +
            printf("setGPIOValue(%d) failed\n", pin);
 +
        }
 +
        sleep(1);
 +
    }
 +
    unexportGPIOPin(pin);
 +
    return 0;
 +
}
 +
</syntaxhighlight>
 +
API说明参考维基：[[Matrix API reference manual/zh|Matrix API reference manual]] <br>
 +
 +
<!---
 
==Download Matrix Source Code==
 
==Download Matrix Source Code==
 
All the matrix modules' code samples are open source. They are maintained on GitHub - https://github.com/friendlyarm/matrix.git <br>
 
All the matrix modules' code samples are open source. They are maintained on GitHub - https://github.com/friendlyarm/matrix.git <br>
Line 306: Line 445:
  
 
==Connect to Arduino==
 
==Connect to Arduino==
−
 
+
--->
 
==Resources==
 
==Resources==
 
[http://www.micro4you.com/files/sensor/DHT11.pdf DHT11.pdf]
 
[http://www.micro4you.com/files/sensor/DHT11.pdf DHT11.pdf]

Revision as of 14:51, 23 June 2016

查看中文

1 Introduction

Relay
  • The Matrix-Relay module is a SPDT relay which is an electrically operated switch. Relays are used where it is necessary to control a circuit by a low-power signal. In a electric system it is used to protect electrical circuits from overload or faults.

2 Features

  • 1 Form C
  • 5V supply voltage, GPIO signal: 3.3/5V
  • Current on-contact up to 10A
  • LED indicator
  • 2.54 mm spacing pin
  • PCB dimension (mm): 24 x 48

继电器PCB

  • Pin Description:
Pin Description
S GPIO
V Supply Voltage 5V
G Ground

3 Basic Device Operation

This is an SPDT relay. Its supply voltage is 5V and current on-contact is up to 10A. It can drive AC or DC high power loads. NO is Normally Open. NC is Normally Closed. COM is Common. When writing high to pin S NO will be open and NC will be closed.


4 硬件连接

4.1 连接NanoPi M1

参考下图连接模块：
Matrix-Relay_nanopi_m1

连接说明：

Matrix-Relay NanoPi M1
S Pin7
V Pin4
G Pin6

4.2 连接NanoPi 2

参考下图连接模块：
Matrix-Relay_nanopi_2

连接说明：

Matrix-Relay NanoPi 2
S Pin7
V Pin4
G Pin6

4.3 连接NanoPi M2 / NanoPi 2 Fire

NanoPi M2和NanoPi 2 Fire的40 Pin引脚定义是一模一样的，所以它们操作Matrix配件的步骤是一样的，这里仅以NanoPi M2为例。
参考下图连接模块：
Matrix-Relay_nanopi_m2

连接说明：

Matrix-Relay NanoPi M2
S Pin7
V Pin4
G Pin6

4.4 连接NanoPC-T2

参考下图连接模块：
Matrix-Relay_NanoPC-T2

连接说明：

Matrix-Relay NanoPC-T2
S Pin15
V Pin29
G Pin30

5 编译运行测试程序

启动开发板并运行Debian系统，进入系统后克隆Matrix代码仓库： 

$ apt-get update && apt-get install git
$ git clone https://github.com/friendlyarm/matrix.git

克隆完成后会得到一个名为matrix的目录。

编译并安装Matrix： 

$ cd matrix
$ make && make install

运行测试程序： 

$ matrix-gpio_out

注意：此模块并不支持热插拔，启动系统前需要确保硬件连接正确。
运行效果如下：

1: gpio status change
2: gpio status change
3: gpio status change
4: gpio status change
5: gpio status change

6 代码说明

所有的开发板都共用一套Matrix代码，本模块的测试示例代码为matrix-gpio_out，内容如下: 

int main(int argc, char ** argv) 
{
    int pin = GPIO_PIN(7); 
    int i, value, board;
    int ret = -1;
 
    if ((board = boardInit()) < 0) {
        printf("Fail to init board\n");
        return -1;
    }
    if (board == BOARD_NANOPI_T2)
        pin = GPIO_PIN(15);
 
    if (argc == 2)
        pin = GPIO_PIN(atoi(argv[1]));
    if ((ret = exportGPIOPin(pin)) == -1) {   
        printf("exportGPIOPin(%d) failed\n", pin);
    }
    if ((ret = setGPIODirection(pin, GPIO_OUT)) == -1) {
        printf("setGPIODirection(%d) failed\n", pin);
    }
    for (i = 0; i < STATUS_CHANGE_TIMES; i++) {
        if (i % 2) {
            value = GPIO_HIGH;
        } else {
            value = GPIO_LOW;
        }
        if ((ret = setGPIOValue(pin, value)) > 0) {
            printf("%d: GPIO_PIN(%d) value is %d\n", i+1, pin, value);
        } else {
            printf("setGPIOValue(%d) failed\n", pin);
        }
        sleep(1);
    }
    unexportGPIOPin(pin);
    return 0;
}

API说明参考维基：Matrix API reference manual

7 Resources

DHT11.pdf

8 Update Log

8.1 Feb-19-2016

  • Added Section 5
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