靶子

sky-Hawk where · 发表于 2012-10-16 11:37:46

本帖最后由 nemon 于 2012-10-16 11:41 编辑

国外有人用树莓派做靶子：

近景：

被打中，会给射击者照相，用的这个网络摄像头：

摄像头 Dropcam据说很好用，官网www.dropcam.com售价149$，直接从https://nexusapi.dropcam.com/get_image?width=800&uuid=XXXXX就可以得到jpg（忒好用了，怪不得有那么多xx门）
不废话了，上代码——
脚本：

#!/bin/bash
#/etc/init.d/target
export HOME
case "$1" in
start)
if [ ! -e "/dev/ttyS1" ]; then
ln /dev/ttyAMA0 /dev/ttyS1
fi
/home/pi/lcd.py `ifconfig wlan2 | grep inet | awk '{print $2}' | sed 's/addr://'`
java -cp .:/home/pi:/home/pi/lib/* Target >> /home/pi/target.log &
/home/pi/shutdown-listener.py &
;;
stop)
LCD_PID=`ps auxwww | grep Target | head -1 | awk '{print $2}'`
kill $LCD_PID
;;
*)
echo "Usage: /etc/init.d/target {start|stop}"
exit 1
;;
esac
exit 0

复制代码

java(能看出那个头怎么用了吧):

import gnu.io.CommPortIdentifier;
import gnu.io.SerialPort;
import java.io.OutputStream;
import be.doubleyouit.raspberry.gpio.Boardpin;
import be.doubleyouit.raspberry.gpio.Direction;
import be.doubleyouit.raspberry.gpio.GpioGateway;
import be.doubleyouit.raspberry.gpio.impl.GpioGatewayImpl;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.activation.MimetypesFileTypeMap;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.entity.FileEntity;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import twitter4j.StatusUpdate;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.conf.ConfigurationBuilder;
import java.util.Random;
public class Target {
static OutputStream output;
static GpioGateway gpio;
static SerialPort port;
static CommPortIdentifier portId;
static HttpClient httpclient = new DefaultHttpClient();
static String replyURL;
static String message;
static boolean ready = true;
static String dropcam = "https://nexusapi.dropcam.com/get_image?width=800&uuid=XXXX";
static String osnImg;
public static Date now;
static Random generator = new Random();
public static String[] messages = {
"Lucky! Looks like you will be taking me home tonight!",
"It paid off to stop by the OTN Lounge tonight.",
"Looks like someone has been practicing.",
"Not bad for your first try. Now go ahead and brag to your friends.",
"I love hanging out at the OTN Lounge, but It looks like you will be taking me home tonight!",
"That was nice. No go and tell your friends to stop by the OTN Lounge.",
"I just love to scream and fly at the OTN Lounge.",
"Roses are red and Oracle too. Now you can take me home too.",
"I just wanna fly.",
"Thanks for stopping by. Looks like you got lucky tonight.",
"I just love to scream and fly at the OTN Lounge."
};
public static void main(String[] args) throws Exception{
AddShutdownHookSample kill = new AddShutdownHookSample();
kill.attachShutDownHook();
try{
portId = CommPortIdentifier.getPortIdentifier("/dev/ttyS1");
port = (SerialPort)portId.open("Raspi LCD", 4000);
output = port.getOutputStream();
port.setSerialPortParams(9600,SerialPort.DATABITS_8, SerialPort.STOPBITS_1,SerialPort.PARITY_NONE);
gpio = new GpioGatewayImpl();
gpio.unexport(Boardpin.PIN11_GPIO17);
gpio.export(Boardpin.PIN11_GPIO17);
gpio.setDirection(Boardpin.PIN11_GPIO17, Direction.IN);
while (true){
brightness("9");
clear();
print(" Ready ");
delayBacklight("0",5);
int i = 0;
//remove negation!
while (!gpio.getValue(Boardpin.PIN11_GPIO17)){
i = 1;
}
if (ready){
//System.out.println("start");
ready = false;
int rnd = generator.nextInt(10);
Process proc = Runtime.getRuntime().exec(new String[]{"/usr/bin/mpg321", "-q","/home/pi/"+rnd+".mp3"});
brightness("9");
clear();
print(" Congratulations");
//Login
downloadPicture();
uploadPicture(messages[rnd]);
clear();
delayBacklight("0",5);
Thread.sleep(2 * 5000);
ready = true;
//System.out.println("end");
}
}
}catch (Exception e){
System.out.println(e.toString());
}
}
public static void downloadPicture() throws IOException{
now = new Date();
String formatDate = new SimpleDateFormat("MMddyyyy-hhmmss").format(now);
osnImg = "OTN-" + formatDate + ".jpeg";
HttpGet httpget = new HttpGet(dropcam);
HttpResponse response = httpclient.execute(httpget);
HttpEntity entity = response.getEntity();
//System.out.println("downloadPicture: " +response.getStatusLine());
if (entity != null) {
byte[] bytes = EntityUtils.toByteArray(entity);
File file = new File("/var/www/" + osnImg);
FileOutputStream fos = new FileOutputStream(file);
fos.write(bytes);
fos.close();
}
EntityUtils.consume(entity);
}
public static void uploadPicture(String message) throws TwitterException {
ConfigurationBuilder cb = new ConfigurationBuilder();
cb.setOAuthConsumerKey("XXXX");
cb.setOAuthConsumerSecret("XXXX");
cb.setOAuthAccessToken("XXXX");
cb.setOAuthAccessTokenSecret("XXXX");
StatusUpdate status = new StatusUpdate(message);
File imageFile = new File ("/var/www/" + osnImg);
status.setMedia(imageFile);
TwitterFactory tf = new TwitterFactory(cb.build());
Twitter twitter = tf.getInstance();
try {
twitter.updateStatus(status);
} catch ( Exception ex ) {
ex.printStackTrace();
}
}
public static void delayBacklight(String level, int delay ) throws Exception{
startCommand();
output.write("T".getBytes());
output.write(level.getBytes());
output.write(delay);
}
public static void brightness(String level) throws Exception{
startCommand();
output.write("B".getBytes());
output.write(level.getBytes());
}
public static void print(String message) throws Exception{
output.write(message.getBytes());
}
public static void clear() throws Exception{
startCommand();
output.write("C".getBytes());
}
public static void startCommand() throws Exception{
output.write(254);
}
}
//http://www.javabeat.net/2010/11/runtime-addshutdownhook/
class AddShutdownHookSample {
void attachShutDownHook() {
Runtime.getRuntime().addShutdownHook(new Thread() {
@Override
public void run(){
try{
System.out.println("Shuting down target");
File file = new File("/var/lock/LCK..ttyS1");
Lcd.httpclient.getConnectionManager().shutdown();
if(file.delete()){
System.out.println(file.getName() + " is deleted!");
}
}catch(Exception e){
e.printStackTrace();
}
}
});
//System.out.println("Shut Down Hook Attached.");
}
}

复制代码

简言之，等着直到被射中，然后抓张图

话说有点大材小用

sky-Hawk where · 发表于 2012-10-16 11:41:50

这个有创意

sky-Hawk where · 发表于 2012-10-16 11:42:38

如果打不中呢，

sky-Hawk where · 发表于 2012-10-16 12:03:14

本帖最后由 nemon 于 2012-10-16 12:06 编辑

tina 发表于 2012-10-16 11:42
如果打不中呢，

打不中就是个死循环，一直显示ready:
while (!gpio.getValue(Boardpin.PIN11_GPIO17)){
i = 1;
}
确实有完善的空间，比如可以给弓弩做做改装，这样知道射击了几次，把屡击不中的也留个影

sky-Hawk where · 发表于 2012-10-16 12:41:05

这个不错啊，顶一下！

sky-Hawk where · 发表于 2012-10-16 13:19:33

楼主有兴致也做个让大家玩玩啊！

sky-Hawk where · 发表于 2012-10-16 18:24:03

哈哈，老外真会想呀。。。。

靶子

站长推荐 /3