Difference between revisions of "Matrix - IR Counter"

From FriendlyELEC WiKi
Jump to: navigation, search
(→‎介绍)
(→‎Basic Device Operation)
 
(7 intermediate revisions by the same user not shown)
Line 1: Line 1:
 
[[Matrix - IR Counter/zh|查看中文]]
 
[[Matrix - IR Counter/zh|查看中文]]
−
 
  
 
==Introduction==
 
==Introduction==
 
[[File:Matrix-IR_Counter.png|thumb|]]
 
[[File:Matrix-IR_Counter.png|thumb|]]
−
*模块Matrix-IR_Counter是红外对射计数传感器模块,使用U型对射光电开关传感器，5-Pin 2.54mm排针，V接电源，G接地,当传感器没有被阻挡时，S引脚输出高电平，当传感器没有被阻挡时，S引脚输出高电平。
+
* The Matrix IR_Counter uses a U type infrared beam photoelectric sensor. It has a 5 pin 2.54 mm pitch pin-header. Pin V is power supply and Pin G is ground. When there is no presence of an object Pin S outputs high
  
−
==特性==
+
==Features==
−
* 使用GPIO接口
+
* GPIO interface
−
*尺寸为 16x24mm
+
* PCB dimension(mm): 16 x 24 mm
−
*PCB尺寸（mm）：16x24
+
 
[[File:Matrix-IR_Counter_PCB.png|frameless|400px|]]
 
[[File:Matrix-IR_Counter_PCB.png|frameless|400px|]]
  
−
* 引脚说明:
+
* Pin Description:
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
−
|名称   || 描述
+
|Pin   || Description
 
|-
 
|-
−
|S    || 数字输出
+
|S    || Digital Output
 
|-  
 
|-  
−
|V    || 电源5V
+
|V    || Supply Voltage 5V
 
|-
 
|-
−
|G    || 地
+
|G    || Ground
 
|}
 
|}
  
−
==工作原理==
+
==Basic Device Operation==
−
* U型对射光电开关传感器的发射器和接收器分别位于U型槽的两边，发射管发出红外信号并形成一光轴，当被检测物体经过U型槽且阻断光轴时，光电开关就产生了开关量信号。U型槽没有被阻挡时，接收管能接收到红外信号，模块输出高电平，U型槽被阻挡时，接收管不能接收到红外信号，模块输出低电平。
+
* There are a transmitter and a receiver on the two wings of the U type slot separately. When the transmitter emits infrared signals an optic axis will be generated. If an object passes through the U type slot and blocks the optic axis the photoelectric switch will generate signals. When the optic axis is not blocked the receiver will receive infrared signals and the module will output high otherwise the module will output low.
  
−
==硬件连接==
+
==Applications==
−
===连接NanoPi M1===
+
===Connect to NanoPi M1===
−
参考下图连接模块：<br>
+
Refer to the following connection diagram to connect the module to the NanoPi M1:<br>
 
[[File:Matrix-IR_Counter_nanopi_m1.jpg|frameless|600px|Matrix-IR_Counter_nanopi_m1]]
 
[[File:Matrix-IR_Counter_nanopi_m1.jpg|frameless|600px|Matrix-IR_Counter_nanopi_m1]]
  
−
连接说明：
+
Connection Details:
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
Line 44: Line 42:
 
|}
 
|}
  
−
===连接NanoPi 2===
+
===Connect to NanoPi 2===
−
参考下图连接模块：<br>
+
Refer to the following connection diagram to connect the module to the NanoPi 2:<br>
 
[[File:Matrix-IR_Counter_nanopi_2.jpg|frameless|600px|Matrix-IR_Counter_nanopi_2]]
 
[[File:Matrix-IR_Counter_nanopi_2.jpg|frameless|600px|Matrix-IR_Counter_nanopi_2]]
  
−
连接说明：
+
Connection Details:
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
Line 60: Line 58:
 
|}
 
|}
  
−
===连接NanoPi M2 / NanoPi 2 Fire===
+
===Connect to 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>
+
Refer to the following connection diagram to connect the module to the NanoPi M2/ NanoPi 2 Fire.<br>
−
参考下图连接模块：<br>
+
 
[[File:Matrix-IR_Counter_nanopi_m2.jpg|frameless|600px|Matrix-IR_Counter_nanopi_m2]]
 
[[File:Matrix-IR_Counter_nanopi_m2.jpg|frameless|600px|Matrix-IR_Counter_nanopi_m2]]
  
−
连接说明：
+
Connection Details:
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
Line 77: Line 74:
 
|}
 
|}
  
−
===连接NanoPC-T2===
+
===Connect to NanoPC-T2===
−
参考下图连接模块：<br>
+
Refer to the following connection diagram to connect the module to the NanoPC-T2:<br>
 
[[File:Matrix-IR_Counter_NanoPC-T2.jpg|frameless|600px|Matrix-IR_Counter_NanoPC-T2]]
 
[[File:Matrix-IR_Counter_NanoPC-T2.jpg|frameless|600px|Matrix-IR_Counter_NanoPC-T2]]
  
−
连接说明：
+
Connection Details:
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
Line 93: Line 90:
 
|}
 
|}
  
−
==编译运行测试程序==
+
==Compile & Run Test Program==
−
启动开发板并运行Debian系统，进入系统后克隆Matrix代码仓库：
+
Boot your ARM board with Debian and copy the matrix code:
 
<syntaxhighlight lang="bash">
 
<syntaxhighlight lang="bash">
 
$ apt-get update && apt-get install git
 
$ apt-get update && apt-get install git
 
$ git clone https://github.com/friendlyarm/matrix.git
 
$ git clone https://github.com/friendlyarm/matrix.git
 
</syntaxhighlight>
 
</syntaxhighlight>
−
克隆完成后会得到一个名为matrix的目录。
+
If your cloning is done successfully a "matrix" directory will be generated.
  
−
编译并安装Matrix：
+
Compile and install Matrix:
 
<syntaxhighlight lang="bash">
 
<syntaxhighlight lang="bash">
 
$ cd matrix
 
$ cd matrix
Line 107: Line 104:
 
</syntaxhighlight>
 
</syntaxhighlight>
  
−
运行测试程序：
+
Run test program:
 
<syntaxhighlight lang="bash">
 
<syntaxhighlight lang="bash">
 
$ matrix-gpio_int
 
$ matrix-gpio_int
 
</syntaxhighlight>
 
</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>
+
Note: this module is not plug and play therefore before running the module please make sure it is connected to an ARM board.<br>
−
运行效果如下：<br>
+
Here is what you should observe:<br>
 
<syntaxhighlight lang="bash">
 
<syntaxhighlight lang="bash">
 
Waiting event...
 
Waiting event...
 
Device[0] value is 1
 
Device[0] value is 1
 
</syntaxhighlight>
 
</syntaxhighlight>
−
当有物体阻挡在模块中间时会检测到事件。
+
If there is presence of an object in front of it an event will be triggered.
  
−
==代码说明==
+
==Code Sample==
−
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_int，内容如下:
+
This Matrix code sample can work with all the ARM boards mentioned in this module's wiki. The name of this code sample is "matrix-gpio_int". Here is its source code:
 
<syntaxhighlight lang="c">
 
<syntaxhighlight lang="c">
 
int main(int argc, char ** argv)
 
int main(int argc, char ** argv)
Line 160: Line 157:
 
}
 
}
 
</syntaxhighlight>
 
</syntaxhighlight>
−
API说明参考维基：[[Matrix API reference manual/zh|Matrix API reference manual]] <br>
+
For more details about this APIs called in this code sample refer to [[Matrix API reference manual]] <br>
 +
 
 +
==Resources==
  
−
==相关资料==
+
==Update Log==
 +
===June-21-2016===
 +
* Created English wiki

Latest revision as of 04:15, 21 June 2016

查看中文

1 Introduction

Matrix-IR Counter.png
  • The Matrix IR_Counter uses a U type infrared beam photoelectric sensor. It has a 5 pin 2.54 mm pitch pin-header. Pin V is power supply and Pin G is ground. When there is no presence of an object Pin S outputs high

2 Features

  • GPIO interface
  • PCB dimension(mm): 16 x 24 mm

Matrix-IR Counter PCB.png

  • Pin Description:
Pin Description
S Digital Output
V Supply Voltage 5V
G Ground

3 Basic Device Operation

  • There are a transmitter and a receiver on the two wings of the U type slot separately. When the transmitter emits infrared signals an optic axis will be generated. If an object passes through the U type slot and blocks the optic axis the photoelectric switch will generate signals. When the optic axis is not blocked the receiver will receive infrared signals and the module will output high otherwise the module will output low.

4 Applications

4.1 Connect to NanoPi M1

Refer to the following connection diagram to connect the module to the NanoPi M1:
Matrix-IR_Counter_nanopi_m1

Connection Details:

Matrix-IR_Counter NanoPi M1
S Pin7
V Pin4
G Pin6

4.2 Connect to NanoPi 2

Refer to the following connection diagram to connect the module to the NanoPi 2:
Matrix-IR_Counter_nanopi_2

Connection Details:

Matrix-IR_Counter NanoPi 2
S Pin7
V Pin4
G Pin6

4.3 Connect to NanoPi M2 / NanoPi 2 Fire

Refer to the following connection diagram to connect the module to the NanoPi M2/ NanoPi 2 Fire.
Matrix-IR_Counter_nanopi_m2

Connection Details:

Matrix-IR_Counter NanoPi M2
S Pin7
V Pin4
G Pin6

4.4 Connect to NanoPC-T2

Refer to the following connection diagram to connect the module to the NanoPC-T2:
Matrix-IR_Counter_NanoPC-T2

Connection Details:

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

5 Compile & Run Test Program

Boot your ARM board with Debian and copy the matrix code: 

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

If your cloning is done successfully a "matrix" directory will be generated.

Compile and install Matrix: 

$ cd matrix
$ make && make install

Run test program: 

$ matrix-gpio_int

Note: this module is not plug and play therefore before running the module please make sure it is connected to an ARM board.
Here is what you should observe:

Waiting event...
Device[0] value is 1

If there is presence of an object in front of it an event will be triggered.

6 Code Sample

This Matrix code sample can work with all the ARM boards mentioned in this module's wiki. The name of this code sample is "matrix-gpio_int". Here is its source code: 

int main(int argc, char ** argv)
{
    int i, board;
    int retSize = -1;
    char value[ARRAY_SIZE(dev)];
 
    if ((board = boardInit()) < 0) {
        printf("Fail to init board\n");
        return -1;
    }
 
    if (argc == 2)
        dev[0].pin = atoi(argv[1]);
    system("modprobe "DRIVER_MODULE);
    signal(SIGINT, intHandler);
    if (board == BOARD_NANOPI_T2)
        dev[0].pin = GPIO_PIN(15);
    printf("Use GPIO_PIN(%d)\n", dev[0].pin);
    if ((devFD =sensorInit(dev, ARRAY_SIZE(dev))) == -1) {
        printf("Fail to init sensor\n");
        goto err;
    }
    printf("Waiting event...\n");
    if ((retSize = sensorRead(devFD, value, ARRAY_SIZE(dev))) == -1) {
        printf("Fail to read sensors\n");
    }
    if (retSize > 0) {
        i = 0;
        for (i=0; i<retSize; i++) {
            printf("Device[%d] value is %d\n", i, value[i]);
        }
    }
    sensorDeinit(devFD);
err:    
    system("rmmod "DRIVER_MODULE);
    return 0;
}

For more details about this APIs called in this code sample refer to Matrix API reference manual

7 Resources

8 Update Log

8.1 June-21-2016

  • Created English wiki
Retrieved from "https://wiki.friendlyelec.com/wiki/index.php?title=Matrix_-_IR_Counter&oldid=6139"