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BPI-M2 Berry

출처 : BPI-M2+
【BPI-M2+】之mjpg-streamer测试和体验- Bananap讨论区- 烽火社区 ...
http://forum.banana-pi.org/c/Banana-pi-BPI-M2

SD 확장

SD 확장전 용량확인

X
user@localhost:~

[user@localhost]$ df -l
Filesystem     1K-blocks    Used Available Use% Mounted on
/dev/root        7155064 4430272   2344940  66% /
devtmpfs          380080       0    380080   0% /dev
tmpfs             511300     340    510960   1% /dev/shm
tmpfs             511300    7652    503648   2% /run
tmpfs               5120       4      5116   1% /run/lock
tmpfs             511300       0    511300   0% /sys/fs/cgroup
tmpfs             102260      24    102236   1% /run/user/1000
/dev/mmcblk0p1    261868    6740    255128   3% /media/pi/BPI-BOOT

SD FDisk

pi@bpi-iot-ros-ai:~$ sudo fdisk /dev/mmcblk0

Welcome to fdisk (util-linux 2.27.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.


Command (m for help): p
Disk /dev/mmcblk0: 14.9 GiB, 15931539456 bytes, 31116288 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x540302a1

Device         Boot  Start      End  Sectors  Size Id Type
/dev/mmcblk0p1      204800   729087   524288  256M  c W95 FAT32 (LBA)
/dev/mmcblk0p2      729088 15267839 14538752    7G 83 Linux

Command (m for help): d
Partition number (1,2, default 2): 2

Partition 2 has been deleted.

Command (m for help): n
Partition type
   p   primary (1 primary, 0 extended, 3 free)
   e   extended (container for logical partitions)
Select (default p): p
Partition number (2-4, default 2): 2
First sector (2048-31116287, default 2048): 729088
Last sector, +sectors or +size{K,M,G,T,P} (729088-31116287, default 31116287): 

Created a new partition 2 of type 'Linux' and of size 14.5 GiB.

Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Re-reading the partition table failed.: Device or resource busy

The kernel still uses the old table. The new table will be used at the next reboot or after you run partprobe(8) or kpartx(8).

pi@bpi-iot-ros-ai:~$ sudo shutdown -r now

SD 확장

X
user@localhost:~

[user@localhost]$ sudo resize2fs /dev/mmcblk0p2
resize2fs 1.42.13 (17-May-2015)
Filesystem at /dev/mmcblk0p2 is mounted on /; on-line resizing required
old_desc_blocks = 1, new_desc_blocks = 1
The filesystem on /dev/mmcblk0p2 is now 3798400 (4k) blocks long.

SD 확장 확인

X
user@localhost:~

[user@localhost]$ df -l
Filesystem     1K-blocks    Used Available Use% Mounted on
/dev/root       14956880 4432300   9830596  32% /
devtmpfs          380080       0    380080   0% /dev
tmpfs             511300     204    511096   1% /dev/shm
tmpfs             511300    7664    503636   2% /run
tmpfs               5120       4      5116   1% /run/lock
tmpfs             511300       0    511300   0% /sys/fs/cgroup
tmpfs             102260      24    102236   1% /run/user/1000
/dev/mmcblk0p1    261868    6740    255128   3% /media/pi/BPI-BOOT

GPIO사용 (BPI-WiringPi)

출처 : Supports BananaPi BPI -M1 / M1Plus / M2 / M2P / M3

기존 설치된 wiringpi 삭제

X
user@localhost:~

[user@localhost]$ sudo apt-get remove wiringpi
[user@localhost]$ sudo apt autoremove

wiringpi 설치

X
user@localhost:~

[user@localhost]$ git clone https://github.com/BPI-SINOVOIP/BPI-WiringPi2.git
[user@localhost]$ cd BPI-WiringPi2/
[user@localhost]$ chmod +x ./build
[user@localhost]$ sudo ./build

GPIO 확인

X
user@localhost:~

[user@localhost]$ gpio -v
gpio version: 2.44
Copyright (c) 2012-2017 Gordon Henderson
This is free software with ABSOLUTELY NO WARRANTY.
For details type: gpio -warranty
 
Raspberry Pi Details:
  Type: Banana Pi M2 Ultra[R40], Revision: 01, Memory: 2048MB, Maker: BPI-Sinovoip 
  * Device tree is enabled.
  *--> sun8iw11p1
  * Root or sudo required for GPIO access.
[user@localhost]$ gpio readall
 +-----+-----+---------+------+---+---Pi ?---+---+------+---------+-----+-----+
 | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi | BCM |
 +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
 |     |     |    3.3v |      |   |  1 || 2  |   |      | 5v      |     |     |
 |  53 |   8 |   SDA.1 | ALT5 | 0 |  3 || 4  |   |      | 5v      |     |     |
 |  52 |   9 |   SCL.1 | ALT5 | 0 |  5 || 6  |   |      | 0v      |     |     |
 |  35 |   7 | GPIO. 7 | ALT3 | 0 |  7 || 8  | 0 | ALT4 | TxD     | 15  | 274 |
 |     |     |      0v |      |   |  9 || 10 | 0 | ALT4 | RxD     | 16  | 275 |
 | 276 |   0 | GPIO. 0 | ALT3 | 0 | 11 || 12 | 0 | ALT3 | GPIO. 1 | 1   | 273 |
 | 277 |   2 | GPIO. 2 | ALT3 | 0 | 13 || 14 |   |      | 0v      |     |     |
 | 249 |   3 | GPIO. 3 | ALT2 | 0 | 15 || 16 | 0 | ALT3 | GPIO. 4 | 4   | 272 |
 |     |     |    3.3v |      |   | 17 || 18 | 0 | ALT2 | GPIO. 5 | 5   | 250 |
 |  64 |  12 |    MOSI | ALT4 | 0 | 19 || 20 |   |      | 0v      |     |     |
 |  65 |  13 |    MISO | ALT4 | 0 | 21 || 22 | 0 | ALT2 | GPIO. 6 | 6   | 251 |
 |  66 |  14 |    SCLK | ALT4 | 0 | 23 || 24 | 0 | ALT4 | CE0     | 10  | 87  |
 |     |     |      0v |      |   | 25 || 26 | 0 | ALT2 | CE1     | 11  | 248 |
 | 257 |  30 |   SDA.0 | ALT3 | 0 | 27 || 28 | 0 | ALT3 | SCL.0   | 31  | 256 |
 | 224 |  21 | GPIO.21 | ALT4 | 0 | 29 || 30 |   |      | 0v      |     |     |
 | 225 |  22 | GPIO.22 | ALT4 | 0 | 31 || 32 | 0 | ALT3 | GPIO.26 | 26  | 116 |
 | 226 |  23 | GPIO.23 | ALT4 | 0 | 33 || 34 |   |      | 0v      |     |     |
 | 227 |  24 | GPIO.24 | ALT4 | 0 | 35 || 36 | 0 | ALT4 | GPIO.27 | 27  | 231 |
 | 228 |  25 | GPIO.25 | ALT4 | 0 | 37 || 38 | 0 | ALT4 | GPIO.28 | 28  | 230 |
 |     |     |      0v |      |   | 39 || 40 | 0 | ALT4 | GPIO.29 | 29  | 229 |
 +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
 | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi | BCM |
 +-----+-----+---------+------+---+---Pi ?---+---+------+---------+-----+-----+

detect I2C chips

출처 : i2cdetect(8): detect I2C chips - Linux man page

X
user@localhost:~

[user@localhost]$ ls /dev/*i2c*
/dev/i2c-0  /dev/i2c-1  /dev/i2c-2  /dev/i2c-4
[user@localhost]$ i2cdetect -y 0
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- UU -- -- -- -- -- -- -- -- -- -- -- 
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- --

pi4j

촐처 : Java I/O library for Raspberry Pi (GPIO, I2C, SPI, UART) http://www.pi4j.com
BUILDING AN EXECUTABLE PI4J JAR

X
user@localhost:~

[user@localhost]$ sudo apt install maven
[user@localhost]$ git clone https://github.com/Pi4J/pi4j.git
[user@localhost]$ cd pi4j/pi4j-native
[user@localhost]$ mvn package

pi4j pwm 오류

촐처 : How to: banana pi BPI-M3 install BPI-WiringPi - Linux - banana pi ...

PWM 관련 오류가 있어 수정해 보려고 했으나 포기

val pwmWrite 0 <= X <= 1024
Or you can set new range by yourself by pwmSetRange(range
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출처 : BPI-M2 Berry Quad-core Development Board - Banana Pi

BPI-M2 Berry 외형

알리에서 구입한 BPI-M2 Berry 입니다.

포장은 기존 바나나 파이 박스에 BPI-M2 Berry라는 스티커가 붙어 있고,
라즈베리파이의 경우 간단한 매뉴얼과 비닐 포장의 경우 밀봉되지 않아 미개봉 여부를 알 수 없다는 단점이 있었는데,
BPI-M2 Berry는 비닐 포장이 밀봉되어 있고, 매뉴얼은 따로 없습니다.

부품의 배치나 외형은 아래 사진에서 보는것과 같이 라즈베리파이3와 일치합니다.

기존 바나나 파이에는 eMMC라든지 외부 안테나 지원하는데 BPI-M2 Berry에는 빠진것이 아쉽지만,
라즈베리파이에서 지원하지 않는 디버깅용 UART 지원과 SATA가 지원됩니다.

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출처 : Webduino Smart Wi-Fi Setup
Aliexpress.com : Buy New Arrivals BPI Webduino smart IOT module development board from Reliable board case suppliers on SinoVoip Co.,Limited Banana PI

BPI-Webduino

BananaPI를 만든 곳에서 Iot용 모듈을 새로 만들었는데, 
이름에서 보는것과 같이 아두이노와 웹을 합쳐 놓은것 같습니다.

광센서와 REG LED가 기본 내장되어 있고, 내장된 Wifi는 AP모드와 공유기 접속하도록 두개가 지원되고,
AP모드로 접속해서 공유기에 접속 가능한 정보만 설정하면 외부에서 restful api 호출로 Webduino를 제어 할 수 있습니다.

개발언어는 Blockly 라는 도구로 웹브라우져로 개발이 가능하고,
기존 아두이노처럼 PC에 USB로 연결해서 아두이노 IDE로 업로드하는 방식은 지원하지 않고,
소스는 JavaScript로 만들어져서 restful 호출로 제어가 가능하므로, 다양한 기기에서 호출이 가능합니다.

 

BPI-Webduino와 Arduino Pro Micro 크기 비교

BPI-Webduino 핀 배열

Webduion AP 모드에 접속

Wifi목록에서 Smart 선택

암호 입력 (초기 암호 123456678)

192.168.4.1 주소를 브라우져 접속하여 공유기 접속 정보와 AP 모드 정보 수정

저장하면 수정된 정보 확인

수정된 AP 이름과 공유기에 접속된 IP학인

AP이름 뒤에 _ 이후로 공유기에 접속된 IP

Blockly RGBLED 예제 작성

Blockly RGB LED 예제 JavaScript 소스

RGB LED 예제 소스

Blockly로 작성된 소스를 Html 페이지에 2개의 버튼을 두고 색을 바꾸도록 작성해보았습니다.

<!doctype html>
<html>

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
  <title>Webduino Blockly App</title>
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
  <script src="https://webduino.io/components/webduino-js/dist/webduino-all.min.js"></script>
  <script src="https://blockly.webduino.io/webduino-blockly.js"></script>
  <script src="https://blockly.webduino.io/lib/firebase.js"></script>
  <script src="https://blockly.webduino.io/lib/runtime.min.js"></script>
  <script>
  	function rgb_call(color) {
  		var rgbled;

			boardReady({board: 'bluexmas', url: '192.168.0.62'}, function (board) {
			  board.systemReset();
			  board.samplingInterval = 250;
			  rgbled = getRGBLedCathode(board, 15, 12, 13);
			  rgbled.setColor(color);
			});
  	}
  </script>
</head>

<body>
  <div><button onclick="javascript:rgb_call('#0000ff');">blue button</span></div>
  <div><button onclick="javascript:rgb_call('#ff0000');">red button</span></div>
</body>

RGB LED 예제 실행


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detect I2C chips

출처 : i2cdetect(8): detect I2C chips - Linux man page

X
user@localhost:~

[user@localhost]$ ls /dev/*i2c*
/dev/i2c-0  /dev/i2c-1
[user@localhost]$ i2cdetect -y 0
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
40: 40 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: 70 -- -- -- -- -- -- --  

PCA9685 제어

import java.io.IOException;
import java.math.BigDecimal;

import com.pi4j.gpio.extension.pca.PCA9685GpioProvider;
import com.pi4j.gpio.extension.pca.PCA9685Pin;
import com.pi4j.io.gpio.BPIM2PGpioProvider;
import com.pi4j.io.gpio.GpioController;
import com.pi4j.io.gpio.GpioFactory;
import com.pi4j.io.gpio.GpioPinPwmOutput;
import com.pi4j.io.gpio.Pin;
import com.pi4j.io.i2c.I2CBus;
import com.pi4j.io.i2c.I2CFactory;
import com.pi4j.io.i2c.I2CFactory.UnsupportedBusNumberException;

public class PCA9685Gpio {
	
	public static final int SERVO_DURATION_MIN = 650;
	public static final int SERVO_DURATION_NEUTRAL = 1500;
	public static final int SERVO_DURATION_MAX = 2100;
	
	private static PCA9685Gpio instance = null;
	
	private PCA9685GpioProvider gpioProvider = null;
	
	// sudo java -cp .:pi4j-core.jar:pi4j-gpio-extension.jar PCA9685Gpio
	
	private PCA9685Gpio() throws IOException, UnsupportedBusNumberException {		
		
		GpioFactory.setDefaultProvider(new BPIM2PGpioProvider());
		
		System.out.println("<--Pi4J--> PCA9685 PWM Example ... started.");
		// This would theoretically lead into a resolution of 5 microseconds per
		// step:
		// 4096 Steps (12 Bit)
		// T = 4096 * 0.000005s = 0.02048s
		// f = 1 / T = 48.828125
		BigDecimal frequency = new BigDecimal("48.828");
		// Correction factor: actualFreq / targetFreq
		// e.g. measured actual frequency is: 51.69 Hz
		// Calculate correction factor: 51.65 / 48.828 = 1.0578
		// --> To measure actual frequency set frequency without correction
		// factor(or set to 1)
		BigDecimal frequencyCorrectionFactor = new BigDecimal("1.0578");
		// Create custom PCA9685 GPIO provider
		I2CBus bus = I2CFactory.getInstance(I2CBus.BUS_0);
		gpioProvider = new PCA9685GpioProvider(bus, 0x40, frequency, frequencyCorrectionFactor);
		// Define outputs in use for this example
		GpioPinPwmOutput[] myOutputs = provisionPwmOutputs(gpioProvider);
		// Reset outputs
		gpioProvider.reset();
	}
	
	public static PCA9685Gpio getInstance() throws IOException, UnsupportedBusNumberException {
		if (instance==null) instance = new PCA9685Gpio();
		return instance;
	}
	
	public void setPwm(Pin pin, int duration) {
		gpioProvider.setPwm(pin, duration);
	}
	
	public void shutdown() {
		gpioProvider.shutdown();
	}
	
	private static GpioPinPwmOutput[] provisionPwmOutputs(final PCA9685GpioProvider gpioProvider) {
		GpioController gpio = GpioFactory.getInstance();
		GpioPinPwmOutput myOutputs[] = { 
				gpio.provisionPwmOutputPin(gpioProvider, PCA9685Pin.PWM_00, "Pulse 00"),
				gpio.provisionPwmOutputPin(gpioProvider, PCA9685Pin.PWM_01, "Pulse 01"),
				gpio.provisionPwmOutputPin(gpioProvider, PCA9685Pin.PWM_02, "Pulse 02"),
				gpio.provisionPwmOutputPin(gpioProvider, PCA9685Pin.PWM_03, "Pulse 03"),
				gpio.provisionPwmOutputPin(gpioProvider, PCA9685Pin.PWM_04, "Pulse 04"),
				gpio.provisionPwmOutputPin(gpioProvider, PCA9685Pin.PWM_05, "Pulse 05"),
				gpio.provisionPwmOutputPin(gpioProvider, PCA9685Pin.PWM_06, "Pulse 06"),
				gpio.provisionPwmOutputPin(gpioProvider, PCA9685Pin.PWM_07, "Pulse 07"),
				gpio.provisionPwmOutputPin(gpioProvider, PCA9685Pin.PWM_08, "Pulse 08"),
				gpio.provisionPwmOutputPin(gpioProvider, PCA9685Pin.PWM_09, "Pulse 09"),
				gpio.provisionPwmOutputPin(gpioProvider, PCA9685Pin.PWM_10, "Always ON"),
				gpio.provisionPwmOutputPin(gpioProvider, PCA9685Pin.PWM_11, "Always OFF"),
				gpio.provisionPwmOutputPin(gpioProvider, PCA9685Pin.PWM_12, "Servo pulse MIN"),
				gpio.provisionPwmOutputPin(gpioProvider, PCA9685Pin.PWM_13, "Servo pulse NEUTRAL"),
				gpio.provisionPwmOutputPin(gpioProvider, PCA9685Pin.PWM_14, "Servo pulse MAX"),
				gpio.provisionPwmOutputPin(gpioProvider, PCA9685Pin.PWM_15, "not used") };
		return myOutputs;
	}

	public static void main(String[] args) throws Exception {
		
		PCA9685Gpio test = PCA9685Gpio.getInstance();
		
		test.setPwm(PCA9685Pin.PWM_01, SERVO_DURATION_NEUTRAL);
		Thread.sleep(200);
		
		for (int i=SERVO_DURATION_MIN; i<=SERVO_DURATION_MAX; i+=30) {
			test.setPwm(PCA9685Pin.PWM_00, i);
			Thread.sleep(200);
		}
		
		for (int i=SERVO_DURATION_MAX; i>=(int)(SERVO_DURATION_MIN+(SERVO_DURATION_MAX-SERVO_DURATION_MIN)/2); i-=30) {
			test.setPwm(PCA9685Pin.PWM_00, i);
			Thread.sleep(200);
		}
				
		for (int i=SERVO_DURATION_MIN; i<=SERVO_DURATION_MAX; i+=30) {
			test.setPwm(PCA9685Pin.PWM_01, i);
			Thread.sleep(200);
		}
		
		for (int i=SERVO_DURATION_MAX-200; i>=(int)(SERVO_DURATION_MIN+(SERVO_DURATION_MAX-SERVO_DURATION_MIN)/2); i-=30) {
			test.setPwm(PCA9685Pin.PWM_01, i);
			Thread.sleep(200);
		}
		
		test.shutdown();

	}
	
}

실행

X
user@localhost:~

[user@localhost]$ sudo java -cp .:pi4j-core.jar:pi4j-gpio-extension.jar PCA9685Gpio
platformId = raspberrypi / label = Raspberry Pi
platformId = bananapi / label = BananaPi
platformId = bananapro / label = BananaPro
platformId = odroid / label = Odroid
platformId = BPI_M2P / label = BPI_M2P
piboardRev: Hardware string: Hardware   : sun8i
Hardware:Hardware       : sun8i
piboardRev:  3
piboardId: Revision string: Revision    : 0000
wiringPi: wiringPiSetup called
piboardRev: Hardware string: Hardware   : sun8i
Hardware:Hardware       : sun8i
piboardRev:  3
piboardRev: Hardware string: Hardware   : sun8i
Hardware:Hardware       : sun8i
piboardRev:  3
piboardId: Revision string: Revision    : 0000
wiringPiSetup: wiringPiMode = 0
<--Pi4J--> PCA9685 PWM Example ... started.

실행 결과

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BPI-M2+ pi4j

출처 : The Pi4J Project - Home

현재 pi4j는 BPI-M2+ 지원하지 않아 수정한 jar를 배포합니다.

pi4j-core.jar

GPIO를 이용하여 LED 제어

/*
 * #%L
 * **********************************************************************
 * ORGANIZATION  :  Pi4J
 * PROJECT       :  Pi4J :: Java Examples
 * FILENAME      :  ControlGpioExample.java
 *
 * This file is part of the Pi4J project. More information about
 * this project can be found here:  http://www.pi4j.com/
 * **********************************************************************
 * %%
 * Copyright (C) 2012 - 2016 Pi4J
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Lesser Public License for more details.
 *
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/lgpl-3.0.html>.
 * #L%
 */
 
import com.pi4j.io.gpio.BPIM2PGpioProvider;
import com.pi4j.io.gpio.BPIM2PPin;
import com.pi4j.io.gpio.GpioController;
import com.pi4j.io.gpio.GpioFactory;
import com.pi4j.io.gpio.GpioPinDigitalOutput;
import com.pi4j.io.gpio.PinState;
 
/**
 * This example code demonstrates how to perform simple state
 * control of a GPIO pin on the Raspberry Pi.
 *
 * @author Robert Savage
 */
public class ControlGpioExample {
 
    public static void main(String[] args) throws InterruptedException {

        GpioFactory.setDefaultProvider(new BPIM2PGpioProvider());

        System.out.println("<--Pi4J--> GPIO Control Example ... started.");
 
        // create gpio controller
        final GpioController gpio = GpioFactory.getInstance();
 
        // provision gpio pin #01 as an output pin and turn on
        final GpioPinDigitalOutput pin = gpio.provisionDigitalOutputPin(BPIM2PPin.GPIO_00, "MyLED", PinState.HIGH);
 
        // set shutdown state for this pin
        pin.setShutdownOptions(true, PinState.LOW);
 
        System.out.println("--> GPIO state should be: ON");
 
        Thread.sleep(5000);
 
        // turn off gpio pin #01
        pin.low();
        System.out.println("--> GPIO state should be: OFF");
 
        Thread.sleep(5000);
 
        // toggle the current state of gpio pin #01 (should turn on)
        pin.toggle();
        System.out.println("--> GPIO state should be: ON");
 
        Thread.sleep(5000);
 
        // toggle the current state of gpio pin #01  (should turn off)
        pin.toggle();
        System.out.println("--> GPIO state should be: OFF");
 
        Thread.sleep(5000);
 
        // turn on gpio pin #01 for 1 second and then off
        System.out.println("--> GPIO state should be: ON for only 1 second");
        pin.pulse(1000, true); // set second argument to 'true' use a blocking call
 
        // stop all GPIO activity/threads by shutting down the GPIO controller
        // (this method will forcefully shutdown all GPIO monitoring threads and scheduled tasks)
        gpio.shutdown();
 
        System.out.println("Exiting ControlGpioExample");
    }
}

실행

X
user@localhost:~

[user@localhost]$ sudo java -cp .:pi4j-core.jar:pi4j-gpio-extension.jar ControlGpioExample
platformId = raspberrypi / label = Raspberry Pi
platformId = bananapi / label = BananaPi
platformId = bananapro / label = BananaPro
platformId = odroid / label = Odroid
platformId = BPI_M2P / label = BPI_M2P
piboardRev: Hardware string: Hardware   : sun8i
Hardware:Hardware       : sun8i
piboardRev:  3
piboardId: Revision string: Revision    : 0000
wiringPi: wiringPiSetup called
piboardRev: Hardware string: Hardware   : sun8i
Hardware:Hardware       : sun8i
piboardRev:  3
piboardRev: Hardware string: Hardware   : sun8i
Hardware:Hardware       : sun8i
piboardRev:  3
piboardId: Revision string: Revision    : 0000
wiringPiSetup: wiringPiMode = 0
<--Pi4J--> GPIO Control Example ... started.
pinMode,2272,pin:1,mode:1
func:sunxi_set_pin_mode pin:1, MODE:1 bank:0 index:1 phyaddr:0x1c20800
read reg val: 0x77222212 offset:4
Out mode ready set val: 0x77222212
Out mode set over reg val: 0x77222212
func:sunxi_digitalWrite pin:1, value:1 bank:0 index:1 phyaddr:0x1c20810
befor write reg val: 0x8002,index:1
HIGH val set over reg val: 0x8002
--> GPIO state should be: ON
func:sunxi_digitalWrite pin:1, value:0 bank:0 index:1 phyaddr:0x1c20810
befor write reg val: 0x8002,index:1
LOW val set over reg val: 0x8000
--> GPIO state should be: OFF
func:sunxi_digitalRead pin:1,bank:0 index:1 phyaddr:0x1c20810
***** read reg val: 0x0,bank:0,index:1,line:1389
func:sunxi_digitalWrite pin:1, value:1 bank:0 index:1 phyaddr:0x1c20810
befor write reg val: 0x8000,index:1
HIGH val set over reg val: 0x8002
--> GPIO state should be: ON
func:sunxi_digitalRead pin:1,bank:0 index:1 phyaddr:0x1c20810
***** read reg val: 0x1,bank:0,index:1,line:1389
func:sunxi_digitalWrite pin:1, value:0 bank:0 index:1 phyaddr:0x1c20810
befor write reg val: 0x8002,index:1
LOW val set over reg val: 0x8000
--> GPIO state should be: OFF
--> GPIO state should be: ON for only 1 second
func:sunxi_digitalWrite pin:1, value:1 bank:0 index:1 phyaddr:0x1c20810
befor write reg val: 0x8000,index:1
HIGH val set over reg val: 0x8002
func:sunxi_digitalWrite pin:1, value:0 bank:0 index:1 phyaddr:0x1c20810
befor write reg val: 0x8002,index:1
LOW val set over reg val: 0x8000
func:sunxi_digitalWrite pin:1, value:0 bank:0 index:1 phyaddr:0x1c20810
befor write reg val: 0x8000,index:1
LOW val set over reg val: 0x8000
Exiting ControlGpioExample

실행 결과

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Banana PI - BPI-M2+

출처 : BPI-M2+
【BPI-M2+】之mjpg-streamer测试和体验- Bananap讨论区- 烽火社区 ...
http://forum.banana-pi.org/c/Banana-pi-BPI-M2

SD 확장

SD 확장전 용량확인

X
user@localhost:~

[user@localhost]$ df -l
Filesystem     1K-blocks    Used Available Use% Mounted on
/dev/root        7156088 4680932   2111636  69% /
devtmpfs          380800       0    380800   0% /dev
tmpfs             512036     800    511236   1% /dev/shm
tmpfs             512036   20248    491788   4% /run
tmpfs               5120       4      5116   1% /run/lock
tmpfs             512036       0    512036   0% /sys/fs/cgroup
/dev/mmcblk0p1    261868  213188     48680  82% /boot
tmpfs             102408      36    102372   1% /run/user/1000

SD FDisk

pi@bpi-iot-ros-ai:~$ sudo fdisk /dev/mmcblk0

Welcome to fdisk (util-linux 2.27.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.


Command (m for help): p
Disk /dev/mmcblk0: 14.7 GiB, 15811477504 bytes, 30881792 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0006c94a

Device         Boot  Start      End  Sectors  Size Id Type
/dev/mmcblk0p1 *    204800   729087   524288  256M  c W95 FAT32 (LBA)
/dev/mmcblk0p2      729088 15269887 14540800    7G 83 Linux

Command (m for help): d
Partition number (1,2, default 2): 2

Partition 2 has been deleted.

Command (m for help): n
Partition type
   p   primary (1 primary, 0 extended, 3 free)
   e   extended (container for logical partitions)
Select (default p): p
Partition number (2-4, default 2): 2
First sector (2048-30881791, default 2048): 729088
Last sector, +sectors or +size{K,M,G,T,P} (729088-30881791, default 30881791): 

Created a new partition 2 of type 'Linux' and of size 14.4 GiB.

Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Re-reading the partition table failed.: Device or resource busy

The kernel still uses the old table. The new table will be used at the next reboot or after you run partprobe(8) or kpartx(8).

pi@bpi-iot-ros-ai:~$ sudo shutdown -r now

SD 확장

X
user@localhost:~

[user@localhost]$ sudo resize2fs /dev/mmcblk0p2
resize2fs 1.42.13 (17-May-2015)
Filesystem at /dev/mmcblk0p2 is mounted on /; on-line resizing required
old_desc_blocks = 1, new_desc_blocks = 1
The filesystem on /dev/mmcblk0p2 is now 3769088 (4k) blocks long.

SD 확장 확인

X
user@localhost:~

[user@localhost]$ df -l
Filesystem     1K-blocks    Used Available Use% Mounted on
/dev/root       14839632 4653484   9513188  33% /
devtmpfs          380800       0    380800   0% /dev
tmpfs             512036     316    511720   1% /dev/shm
tmpfs             512036    7456    504580   2% /run
tmpfs               5120       4      5116   1% /run/lock
tmpfs             512036       0    512036   0% /sys/fs/cgroup
/dev/mmcblk0p1    261868  213188     48680  82% /boot
tmpfs             102408      28    102380   1% /run/user/1000

How to burn Linux image to eMMC

출처 : How to burn Linux image to eMMC
bpi-copy command

root@bpi-iot-ros-ai:~# uname -a
Linux bpi-iot-ros-ai 3.4.112-sun8i #2 SMP PREEMPT Mon May 30 20:34:33 CST 2016 armv7l armv7l armv7l GNU/Linux
root@bpi-iot-ros-ai:~# fdisk -l
Disk /dev/mmcblk0: 14.7 GiB, 15811477504 bytes, 30881792 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0006c94a

Device         Boot  Start      End  Sectors  Size Id Type
/dev/mmcblk0p1 *    204800   729087   524288  256M  c W95 FAT32 (LBA)
/dev/mmcblk0p2      729088 30881791 30152704 14.4G 83 Linux


Disk /dev/mmcblk1: 7.3 GiB, 7818182656 bytes, 15269888 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00000000


Disk /dev/mmcblk1boot1: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/mmcblk1boot0: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

이미지 복원

이미지 복원이 완료되면 SD 메모리를 제거하고 재부팅

X
user@localhost:~

[user@localhost]$ sudo dd if=2016-07-21-ubuntu-mate-16.04-desktop-armhf-raspberry-pi-bpi-m2p-sd-emmc.img of=/dev/mmcblk1 bs=10MB
781+1 records in
781+1 records out
7818182656 bytes (7.8 GB, 7.3 GiB) copied, 1023.46 s, 7.6 MB/s

eMMC 부팅(SD동시 사용 - 적용실패)

출처 : Banana Pi M2+ with system on emmc, data on sd card - Allwinner H2/H3
Boot from eMMC with blank SD in slot (BPI-M3)

X
user@localhost:~

[user@localhost]$ cat /etc/fstab
proc            /proc           proc    defaults          0       0
/dev/mmcblk0p2  /               ext4   defaults,noatime  0       1
/dev/mmcblk0p1  /boot/          vfat    defaults          0       2
[user@localhost]$ lsblk
NAME         MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
mmcblk0boot0 179:16   0    4M  1 disk 
mmcblk0boot1 179:32   0    4M  1 disk 
mmcblk0      179:0    0  7.3G  0 disk 
쒋mmcblk0p1  179:1    0  256M  0 part /boot
붴mmcblk0p2  179:2    0    7G  0 part /
[user@localhost]$ cat /boot/boot.cmd
#setenv device mmc
#setenv partition 0:1
setenv bpi bananapi
setenv board bpi-m64
setenv chip a64
setenv service linux
setenv kernel Image
setenv initrd initrd.img
setenv dtb pine64-plus.dtb
 
setenv bootargs "console=ttyS0,115200n8 no_console_suspend earlycon=uart,mmio32,0x01c28000 mac_addr=${ethaddr} board=${board} root=${root} rootwait panic=10 consoleblank=0 enforcing=0 loglevel=2"
 
 
setenv fdt_filename "${bpi}/${board}/${service}/${dtb}"
setenv kernel_filename "${bpi}/${board}/${service}/${kernel}"
setenv initrd_filename "${bpi}/${board}/${service}/${initrd}"
 
run load_dtb load_kernel load_initrd boot_kernel
 
# Recompile with:
# mkimage -C none -A arm -T script -d /boot/boot.cmd /boot/boot.scr
# mkimage -C none -A arm -T script -d boot.cmd boot.scr

generate boot.src

X
user@localhost:~

[user@localhost]$ sudo mkimage -C none -A arm -T script -d /boot/boot.cmd /boot/boot.scr
Image Name:   
Created:      Sun Feb  26 11:55:34 2017
Image Type:   ARM Linux Script (uncompressed)
Data Size:    805 Bytes = 0.79 kB = 0.00 MB
Load Address: 00000000
Entry Point:  00000000
Contents:
   Image 0: 797 Bytes = 0.78 kB = 0.00 MB
[user@localhost]$ sudo shutdown -r now

GPIO사용 (BPI-WiringPi)

출처 : Supports BananaPi BPI -M1 / M1Plus / M2 / M2P / M3

기존 설치된 wiringpi 삭제

X
user@localhost:~

[user@localhost]$ sudo apt-get remove wiringpi
[user@localhost]$ sudo apt autoremove

wiringpi 설치

X
user@localhost:~

[user@localhost]$ git clone https://github.com/BPI-SINOVOIP/BPI-WiringPi.git -b BPI_M2P
[user@localhost]$ cd BPI-WiringPi
[user@localhost]$ chmod +x ./build
[user@localhost]$ sudo ./build

GPIO 확인

X
user@localhost:~

[user@localhost]$ gpio -v
gpio version: 2.26
Copyright (c) 2012-2015 Gordon Henderson
This is free software with ABSOLUTELY NO WARRANTY.
For details type: gpio -warranty
 
Banana Pi Details:
  Type: Model BM, Revision: 1.2, Memory: 1024MB, Maker: BPI 
[user@localhost]$ gpio readall
 +-----+-----+---------+------+---+---Pi ---+---+------+---------+-----+-----+
 | CPU | wPi |    Name   | Mode | V | Physical | V | Mode |   Name    | wPi | CPU |
 +-----+-----+-----------+------+---+----++----+---+------+-----------+-----+-----+
 |     |     |      3.3v |      |   |  1 || 2  |   |      | 5v        |     |     |
 |  12 |   8 |     SDA.1 | ALT5 | 0 |  3 || 4  |   |      | 5V        |     |     |
 |  11 |   9 |     SCL.1 | ALT5 | 0 |  5 || 6  |   |      | GND       |     |     |
 |   6 |   7 |      PWM1 | ALT3 | 0 |  7 || 8  | 0 | ALT4 | UART3-TX  | 15  | 13  |
 |     |     |       GND |      |   |  9 || 10 | 0 | ALT4 | UART3-RX  | 16  | 14  |
 |   1 |   0 |  UART2-RX | ALT5 | 0 | 11 || 12 | 0 | OUT  | UART3-CTS | 1   | 16  |
 |   0 |   2 |  UART2-TX | ALT5 | 0 | 13 || 14 |   |      | GND       |     |     |
 |   3 |   3 | UART2-CTS | ALT5 | 0 | 15 || 16 | 1 | ALT4 | UART3-RTS | 4   | 15  |
 |     |     |      3.3v |      |   | 17 || 18 | 0 | ALT3 | GPIO.PC04 | 5   | 68  |
 |  64 |  12 | SPI0_MOSI | ALT4 | 0 | 19 || 20 |   |      | GND       |     |     |
 |  65 |  13 | SPI0_MISO | ALT4 | 0 | 21 || 22 | 0 | ALT5 | UART2-RTS | 6   | 2   |
 |  66 |  14 |  SPI0_CLK | ALT4 | 0 | 23 || 24 | 0 | ALT4 | SPI0-CS   | 10  | 67  |
 |     |     |       GND |      |   | 25 || 26 | 0 | ALT3 | GPIO.PL07 | 11  | 71  |
 |  19 |  30 |     SDA.0 | ALT4 | 0 | 27 || 28 | 0 | ALT4 | SCL.0     | 31  | 18  |
 |   7 |  21 | GPIO.PA07 | ALT3 | 0 | 29 || 30 |   |      | GND       |     |     |
 |   8 |  22 | GPIO.PA08 | ALT3 | 0 | 31 || 32 | 0 | ALT3 | GPIO.PL02 | 26  | 354 |
 |   9 |  23 | GPIO.PA09 | ALT3 | 0 | 33 || 34 |   |      | GND       |     |     |
 |  10 |  24 | GPIO.PA10 | ALT3 | 0 | 35 || 36 | 0 | ALT3 | GPIO.PL04 | 27  | 356 |
 |  17 |  25 | SPDIF-OUT | ALT3 | 0 | 37 || 38 | 0 | ALT3 | GPIO.PA21 | 28  | 21  |
 |     |     |       GND |      |   | 39 || 40 | 0 | ALT3 | GPIO.PA20 | 29  | 20  |
 +-----+-----+-----------+------+---+----++----+---+------+-----------+-----+-----+
 | CPU | wPi |    Name   | Mode | V | Physical | V | Mode |   Name    | wPi | CPU |
 +-----+-----+---------+------+---+---Pi ---+---+------+---------+-----+-----+

detect I2C chips

출처 : i2cdetect(8): detect I2C chips - Linux man page

X
user@localhost:~

[user@localhost]$ ls /dev/*i2c*
/dev/i2c-0  /dev/i2c-1
[user@localhost]$ i2cdetect -y 0
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
40: 40 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: 70 -- -- -- -- -- -- --  

jdk1.8 설치

출처 : 우분투(Ubuntu) Oracle(Sun) Java JDK 설치 - 사르기스

OpenJDK 제거

X
user@localhost:~

[user@localhost]$ sudo apt-get purge openjdk*

repository 추가

X
user@localhost:~

[user@localhost]$ sudo add-apt-repository ppa:webupd8team/java

repository index 업데이트

X
user@localhost:~

[user@localhost]$ sudo apt-get update

JDK 설치

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user@localhost:~

[user@localhost]$ sudo apt-get install oracle-java8-installer

JAVA_HOME 환경변수 추가

X
user@localhost:~

[user@localhost]$ sudo vi /etc/profile

내용 추가 export JAVA_HOME=/usr/lib/jvm/java-8-oracle

export JAVA_HOME=/usr/lib/jvm/java-8-oracle

pi4j

촐처 : Java I/O library for Raspberry Pi (GPIO, I2C, SPI, UART) http://www.pi4j.com
BUILDING AN EXECUTABLE PI4J JAR

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user@localhost:~

[user@localhost]$ sudo apt install maven
[user@localhost]$ git clone https://github.com/Pi4J/pi4j.git
[user@localhost]$ cd pi4j/pi4j-native
[user@localhost]$ mvn package

pi4j pwm 오류

촐처 : How to: banana pi BPI-M3 install BPI-WiringPi - Linux - banana pi ...

PWM 관련 오류가 있어 수정해 보려고 했으나 포기

val pwmWrite 0 <= X <= 1024
Or you can set new range by yourself by pwmSetRange(range
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BPI-M2+ mjpg-streamer

출처 : 【BPI-M2+】之mjpg-streamer测试和体验- Bananap讨论区- 烽火社区 ...
MJPG-Streamer › Wiki › ubuntuusers.de
라즈베리파이에서 웹캠 mjpg-streamer 따라하기|작성자 서리
mjpg-streamer 웹캠 영상 스트리밍 | Mungrrr

관련 라이브러리 설치

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user@localhost:~

[user@localhost]$ sudo apt-get install libjpeg8-dev libv4l-dev subversion
[user@localhost]$ sudo apt-get install imagemagick

mjpg-streamer 컴파일 및 설치

출처 : http://www.lavrsen.dk/svn/motion/tags/3.2.9/picture.c

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user@localhost:~

[user@localhost]$ svn co https://svn.code.sf.net/p/mjpg-streamer/code/mjpg-streamer mjpg-streamer
[user@localhost]$ cd mjpg-streamer
[user@localhost]$ make USE_LIBV4L2=true clean all
[user@localhost]$ sudo make install
install --mode=755 mjpg_streamer /usr/local/bin
install --mode=644 input_ov5640.so input_uvc.so output_file.so output_udp.so output_http.so input_testpicture.so input_file.so /usr/local/lib/
install --mode=755 -d /usr/local/www
install --mode=644 -D www/* /usr/local/www

input_ov5640.so

input_ov5640.tar.gz

mjpg-streamer의 input_uvc.so는 YUV만 지원하고, BPI-M2+의 카메라인 OV5640는 YUV420코덱만 지원하기 때문에, mjpg-streamer에서 사용 할 수 없습니다.

제가 작업한 OV5640의 YUV420코덱을 지원하는 so 파일을 공개 합니다.
BPI-M2+의 카메라인 OV5640를 사용해서 mjpg-streamer로 스트리밍 하시려면 첨부한 파일을 사용하세요.

LD_LIBRARY_PATH 경로 추가

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user@localhost:~

[user@localhost]$ echo "export LD_LIBRARY_PATH=\$LD_LIBRARY_PATH:/usr/local/lib:/usr/local/lib/mjpg-streamer" | sudo tee -a /etc/profile

mjpg-streamer 실행

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user@localhost:~

[user@localhost]$ ./mjpg_streamer -i "./input_ov5640.so -y -n" -o "./output_http.so -w ./www"
MJPG Streamer Version: svn rev: 3:172M
 i: Using V4L2 device.: /dev/video0
 i: Desired Resolution: 640 x 480
 i: Frames Per Second.: 5
 i: Format............: YUV420
 i: JPEG Quality......: 80
 o: www-folder-path...: ./www/
 o: HTTP TCP port.....: 8080
 o: username:password.: disabled
 o: commands..........: enabled

서비스등록

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user@localhost:~

[user@localhost]$ sudo vi /etc/init.d/mjpg_streamer

mjpg_streamer 파일 내용

#!/bin/bash
# /etc/init.d/mjpg_streamer.sh
# v0.2 phillips321.co.uk
### BEGIN INIT INFO
# Provides:          mjpg_streamer.sh
# Required-Start:    $network
# Required-Stop:     $network
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: mjpg_streamer for webcam
# Description:       Streams /dev/video0 to http://IP/?action=stream
### END INIT INFO

#
export width=640
export height=480
export fps=10
export SHUTDOWN_WAIT=2
export QUALITY=75

if [ -n "$2" ]; then
  width=$2 
fi

if [ -n "$3" ]; then
  height=$3
fi

if [ -n "$4" ]; then
  fps=$4
fi

export LD_MJPG_STREAMER=/usr/local/lib

f_message(){
        echo "[+] $1"
}

mjpg_streamer_pid() {
  echo `ps aux | grep mjpg_streamer | grep -v grep | awk '{ print $2 }'`
}

start() {
  pid=$(mjpg_streamer_pid)
  if [ -n "$pid" ] 
  then
    echo "mjpg_streamer is already running (pid: $pid)"
  else
    # Start mjpg_streamer
		f_message "Starting mjpg_streamer"
		mjpg_streamer -b -i "$LD_MJPG_STREAMER/input_ov5640.so -r "$width"x"$height" -f $fps -q $QUALITY -y" -o "$LD_MJPG_STREAMER/output_http.so -p 8080 -w /usr/local/www"
		sleep 2
		f_message "mjpg_streamer started"
  fi

  return 0
}

stop() {
  pid=$(mjpg_streamer_pid)
  if [ -n "$pid" ]
  then
    f_message "Stopping mjpg_streamer..."
    kill -9 $pid

    let kwait=$SHUTDOWN_WAIT
    let count=0;
    until [ `ps -p $pid | grep -c $pid` = '0' ] || [ $count -gt $kwait ]
    do
      echo -n -e "\nwaiting for processes to exit";
      sleep 1
      let count=$count+1;
    done

    if [ $count -gt $kwait ]; then
      echo -n -e "\nkilling processes which didn't stop after $SHUTDOWN_WAIT seconds\n"
      kill -9 $pid
    fi
  else
    echo "mjpg_streamer is not running"
  fi
 
  return 0
}

# Carry out specific functions when asked to by the system
case "$1" in
        start)
                 start
                 ;;
        stop)
                 stop
                 ;;
        restart)
                 stop
                 sleep 2
                 start
                 ;;
        resolution)
                resolution=`ps axu | grep mjpg_streamer | grep -v grep | awk '{ print $16 }'`
                currfps=`ps axu | grep mjpg_streamer | grep -v grep | awk '{ print $18 }'`
                if [ -n "$resolution" ];
                then
                        echo "${resolution}"x"$currfps"
                else
                        echo "0x0x0"
                fi
                ;;
        status)
                pid=`ps -A | grep mjpg_streamer | grep -v "grep" | grep -v mjpg_streamer. | awk '{print $1}' | head -n 1`
                if [ -n "$pid" ];
                then
                        f_message "mjpg_streamer is running with pid ${pid}"
                        f_message "mjpg_streamer was started with the following command line"
                        cat /proc/${pid}/cmdline ; echo ""
                else
                        f_message "Could not find mjpg_streamer running"
                fi
                ;;
        *)
                f_message "Usage: $0 {start|stop|status|restart}"
                exit 1
                ;;
esac
exit 0

등록

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user@localhost:~

[user@localhost]$ sudo chmod u+x /etc/init.d/mjpg_streamer
[user@localhost]$ sudo update-rc.d mjpg_streamer defaults

서비스 실행 및 실행 확인

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user@localhost:~

[user@localhost]$ sudo service mjpg_streamer start
[user@localhost]$ sudo service mjpg_streamer status
● mjpg_streamer.service - LSB: mjpg_streamer for webcam
   Loaded: loaded (/etc/init.d/mjpg_streamer; bad; vendor preset: enabled)
   Active: active (running) since Sat 2017-03-11 23:04:13 CST; 15min ago
     Docs: man:systemd-sysv-generator(8)
  Process: 4201 ExecStart=/etc/init.d/mjpg_streamer start (code=exited, status=0/SUCCESS)
   CGroup: /system.slice/mjpg_streamer.service
           └─4015 mjpg_streamer -b -i /usr/local/lib/input_ov5640.so -r 1280x720 -f 24 -q 45 -y -o /usr/local/lib/output_http.so -p 8080 -w /usr/local/www
 
Mar 11 23:04:11 bpi-iot-ros-ai mjpg_streamer[4201]: [+] Starting mjpg_streamer
Mar 11 23:04:11 bpi-iot-ros-ai mjpg_streamer[4201]: enabling daemon modeforked to background (4210)
Mar 11 23:04:11 bpi-iot-ros-ai mjpg_streamer[4210]: MJPG-streamer [4210]: MJPG Streamer Version: svn rev: 3:172M
Mar 11 23:04:11 bpi-iot-ros-ai mjpg_streamer[4210]: MJPG-streamer [4210]: Using V4L2 device.: /dev/video0
Mar 11 23:04:11 bpi-iot-ros-ai mjpg_streamer[4210]: MJPG-streamer [4210]: Desired Resolution: 640 x 480
Mar 11 23:04:11 bpi-iot-ros-ai mjpg_streamer[4210]: MJPG-streamer [4210]: Frames Per Second.: 10
Mar 11 23:04:11 bpi-iot-ros-ai mjpg_streamer[4210]: MJPG-streamer [4210]: Format............: YUV420
Mar 11 23:04:11 bpi-iot-ros-ai mjpg_streamer[4210]: MJPG-streamer [4210]: JPEG Quality......: 75
Mar 11 23:04:13 bpi-iot-ros-ai mjpg_streamer[4201]: [+] mjpg_streamer started
Mar 11 23:04:13 bpi-iot-ros-ai systemd[1]: Started LSB: mjpg_streamer for webcam.

실행

motion

출처 : mjpegtoyuv420p patch for Logitech Quickcam Pro

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user@localhost:~

[user@localhost]$ svn co http://www.lavrsen.dk/svn/motion/trunk motion
[user@localhost]$ cd motion
[user@localhost]$ ./configure
[user@localhost]$ make


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BPI-M2+ Camera(OV5640)

출처 : BPI-M2+ OV5640 camera linux driver is work fine
BPI-M2+ camera module

Camera 모듈 설치

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user@localhost:~

[user@localhost]$ sudo vi /etc/modules

내용 추가

ov5640
vfe_v4l2

Camera 설치 확인

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user@localhost:~

[user@localhost]$ dmesg | grep ov5640
[    8.330079] [VFE]Find sensor name is "ov5640", i2c address is 78, type is "YUV" !
[    8.330090] [VFE]Sub device register "ov5640" i2c_addr = 0x78 start!
[    8.535088] [VFE]Sub device register "ov5640" is OK!
[user@localhost]$ ls /dev/video*
/dev/video0

Camera 정보

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user@localhost:~

[user@localhost]$ modinfo ov5640
filename:       /lib/modules/3.4.112-sun8i/kernel/drivers/media/video/sunxi-vfe/device/ov5640.ko
license:        GPL
description:    A low-level driver for ov5640 sensors
author:         raymonxiu
alias:          i2c:ov5640
depends:        cci,vfe_subdev
intree:         Y
vermagic:       3.4.112-sun8i SMP preempt mod_unload modversions ARMv7 p2v8 

Camera 캡쳐 프로그램 컴파일 및 실행

출처 : https://github.com/avafinger/ov5640

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user@localhost:~

[user@localhost]$ git clone https://github.com/avafinger/cap-v4l2
[user@localhost]$ cd cap-v4l2
[user@localhost]$ sudo ./install_deps.sh
[user@localhost]$ ./build_script.sh
[user@localhost]$ ./cap 1280 720 4 1 -999 -1 -1

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