Difference between revisions of "Matrix - IR Counter"

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−
[[Matrix - IR_Counter|English]]\zh
+
[[Matrix - IR Counter/zh|查看中文]]
  
−
==介绍==
+
==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
 
|-
 
|-
−
|GND   || 地
+
|G   || Ground
 
|}
 
|}
  
−
==工作原理==
+
==Basic Device Operation==
−
* D
+
* 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.
  
−
==下载Matrix源码==
+
==Applications==
 +
===Connect to NanoPi M1===
 +
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]]
  
−
==与NanoPi 2连接使用==
+
Connection Details:
 +
{| class="wikitable"
 +
|-
 +
|Matrix-IR_Counter || NanoPi M1
 +
|-
 +
|S    || Pin7
 +
|-
 +
|V    || Pin4
 +
|-
 +
|G    || Pin6
 +
|}
 +
 
 +
===Connect to NanoPi 2===
 +
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]]
 +
 
 +
Connection Details:
 +
{| class="wikitable"
 +
|-
 +
|Matrix-IR_Counter || NanoPi 2
 +
|-
 +
|S    || Pin7
 +
|-
 +
|V    || Pin4
 +
|-
 +
|G    || Pin6
 +
|}
 +
 
 +
===Connect to NanoPi M2 / NanoPi 2 Fire===
 +
Refer to the following connection diagram to connect the module to the NanoPi M2/ NanoPi 2 Fire.<br>
 +
[[File:Matrix-IR_Counter_nanopi_m2.jpg|frameless|600px|Matrix-IR_Counter_nanopi_m2]]
 +
 
 +
Connection Details:
 +
{| class="wikitable"
 +
|-
 +
|Matrix-IR_Counter || NanoPi M2
 +
|-
 +
|S    || Pin7
 +
|-
 +
|V    || Pin4
 +
|-
 +
|G    || Pin6
 +
|}
 +
 
 +
===Connect to NanoPC-T2===
 +
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]]
 +
 
 +
Connection Details:
 +
{| class="wikitable"
 +
|-
 +
|Matrix-IR_Counter || NanoPC-T2
 +
|-
 +
|S    || Pin15
 +
|-
 +
|V    || Pin29
 +
|-
 +
|G    || Pin30
 +
|}
 +
 
 +
==Compile & Run Test Program==
 +
Boot your ARM board with Debian and copy the matrix code:
 +
<syntaxhighlight lang="bash">
 +
$ apt-get update && apt-get install git
 +
$ git clone https://github.com/friendlyarm/matrix.git
 +
</syntaxhighlight>
 +
If your cloning is done successfully a "matrix" directory will be generated.
 +
 
 +
Compile and install Matrix:
 +
<syntaxhighlight lang="bash">
 +
$ cd matrix
 +
$ make && make install
 +
</syntaxhighlight>
 +
 
 +
Run test program:
 +
<syntaxhighlight lang="bash">
 +
$ matrix-gpio_int
 +
</syntaxhighlight>
 +
Note: this module is not plug and play therefore before running the module please make sure it is connected to an ARM board.<br>
 +
Here is what you should observe:<br>
 +
<syntaxhighlight lang="bash">
 +
Waiting event...
 +
Device[0] value is 1
 +
</syntaxhighlight>
 +
If there is presence of an object in front of it an event will be triggered.
 +
 
 +
==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:
 +
<syntaxhighlight lang="c">
 +
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;
 +
}
 +
</syntaxhighlight>
 +
For more details about this APIs called in this code sample refer to [[Matrix API reference manual]] <br>
 +
 
 +
==Resources==
 +
 
 +
==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"