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@slintes
slintes committed Dec 26, 2012
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3 changes: 3 additions & 0 deletions .gitignore
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*.iml
*~
target
8 changes: 8 additions & 0 deletions README.md
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Raspberry Pi + some electronic parts + Java + Pi4J

see http://www.youtube.com/watch?v=Ydytk35zhPs

Links:
http://learn.adafruit.com/adafruit-raspberry-pi-educational-linux-distro/
http://jdk8.java.net/fxarmpreview/index.html
http://pi4j.com/index.html
83 changes: 83 additions & 0 deletions pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>net.slintes.raspi</groupId>
<artifactId>Ampel</artifactId>
<version>0.1</version>

<properties>
<pi4jVersion>0.0.5-SNAPSHOT</pi4jVersion>
</properties>

<dependencies>
<dependency>
<groupId>com.pi4j</groupId>
<artifactId>pi4j-core</artifactId>
<version>${pi4jVersion}</version>
</dependency>
</dependencies>

<build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.4</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
<configuration>
<archive>
<manifest>
<mainClass>net.slintes.raspi.Ampel</mainClass>
</manifest>
</archive>
<descriptor>src/main/assembly/assembly.xml</descriptor>
<appendAssemblyId>false</appendAssemblyId>
</configuration>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.7</version>
<configuration>
<uniqueVersion>false</uniqueVersion>
<generatePom>false</generatePom>
</configuration>
</plugin>
</plugins>
<extensions>
<extension>
<groupId>org.apache.maven.wagon</groupId>
<artifactId>wagon-ssh</artifactId>
<version>2.3</version>
</extension>
</extensions>
</build>

<distributionManagement>
<repository>
<id>raspi</id>
<url>scp://pi:xxxx@raspberrypi.local/home/pi/ampel</url>
</repository>
</distributionManagement>

<repositories>
<repository>
<id>oss-snapshots-repo</id>
<name>Sonatype OSS Maven Repository</name>
<url>https://oss.sonatype.org/content/groups/public</url>
<snapshots>
<enabled>true</enabled>
<updatePolicy>always</updatePolicy>
</snapshots>
</repository>
</repositories>

</project>
23 changes: 23 additions & 0 deletions src/main/assembly/assembly.xml
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<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2 http://maven.apache.org/xsd/assembly-1.1.2.xsd">

<id>assembly-with-dll</id>
<formats>
<format>jar</format>
</formats>
<includeBaseDirectory>false</includeBaseDirectory>
<dependencySets>
<!-- package the regular dependencies -->
<dependencySet>
<outputDirectory>/</outputDirectory>
<useProjectArtifact>true</useProjectArtifact>
<unpack>true</unpack>
<scope>runtime</scope>
<!-- exclude so -->
<excludes>
<exclude>com.pi4j:pi4j-native:so:hard-float:${pi4jVersion}</exclude>
<exclude>com.pi4j:pi4j-native:so:soft-float:${pi4jVersion}</exclude>
</excludes>
</dependencySet>
</dependencySets>
</assembly>
74 changes: 74 additions & 0 deletions src/main/java/net/slintes/raspi/Ampel.java
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package net.slintes.raspi;

import com.pi4j.io.gpio.*;

/**
* Created with IntelliJ IDEA.
* User: slintes
* Date: 26.12.12
* Time: 16:09
*/
public class Ampel {

private static final Pin PIN_RED = RaspiPin.GPIO_04; // orig 24
private static final Pin PIN_YELLOW = RaspiPin.GPIO_05; // orig 25
private static final Pin PIN_GREEN = RaspiPin.GPIO_06; // orig 26
private static final String NAME_RED = "red";
private static final String NAME_YELLOW = "yellow";
private static final String NAME_GREEN = "green";
private static final int STATE_RED = 1;
private static final int STATE_YELLOW = 2;
private static final int STATE_GREEN = 4;

public static void main(String[] args){
Ampel ampel = new Ampel();
ampel.start();
}

private void start() {
GpioController gpio = GpioFactory.getInstance();
GpioPinDigitalOutput redLED = gpio.provisionDigitalOutputPin(PIN_RED, NAME_RED, PinState.LOW);
GpioPinDigitalOutput yellowLED = gpio.provisionDigitalOutputPin(PIN_YELLOW, NAME_YELLOW, PinState.LOW);
GpioPinDigitalOutput greenLED = gpio.provisionDigitalOutputPin(PIN_GREEN, NAME_GREEN, PinState.LOW);

redLED.setShutdownOptions(true, PinState.LOW);
yellowLED.setShutdownOptions(true, PinState.LOW);
greenLED.setShutdownOptions(true, PinState.LOW);

int durationLong = 2000;
int durationShort= 800;

StateAndDuration[] stateAndDurations = {new StateAndDuration(STATE_RED, durationLong),
new StateAndDuration(STATE_RED + STATE_YELLOW, durationShort),
new StateAndDuration(STATE_GREEN, durationLong),
new StateAndDuration(STATE_YELLOW, durationLong)};

while(true){
for (int i=0, length=stateAndDurations.length; i<length; i++){

StateAndDuration stateAndDuration = stateAndDurations[i];

redLED.setState((stateAndDuration.state & STATE_RED) == STATE_RED);
yellowLED.setState((stateAndDuration.state & STATE_YELLOW) == STATE_YELLOW);
greenLED.setState((stateAndDuration.state & STATE_GREEN) == STATE_GREEN);

try {
Thread.sleep(stateAndDuration.duration);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}

class StateAndDuration {

int state;
int duration;

StateAndDuration(int state, int duration) {
this.state = state;
this.duration = duration;
}
}
}

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