From a2c4f6f9eb5c91ba93249bbf7552431214a394d6 Mon Sep 17 00:00:00 2001
From: jancoow <jancokock@gmail.com>
Date: Sun, 17 May 2015 12:12:14 +0200
Subject: [PATCH] Ledstrip now working in java.

---
 led.py                    | 52 ++++++++++++++++++++++++
 src/control/Ledstrip.java | 83 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 135 insertions(+)
 create mode 100755 led.py
 create mode 100644 src/control/Ledstrip.java

diff --git a/led.py b/led.py
new file mode 100755
index 0000000..5e188a1
--- /dev/null
+++ b/led.py
@@ -0,0 +1,52 @@
+import sys
+import time
+from neopixel import *
+
+# LED strip configuration:
+LED_COUNT      = 66      # Number of LED pixels.
+LED_PIN        = 18      # GPIO pin connected to the pixels (must support PWM!).
+LED_FREQ_HZ    = 700000  # LED signal frequency in hertz (usually 800khz)
+LED_DMA        = 5       # DMA channel to use for generating signal (try 5)
+LED_BRIGHTNESS = 255     # Set to 0 for darkest and 255 for brightest
+LED_INVERT     = False   # True to invert the signal (when using NPN transistor level shift)
+
+def setLed(strip, l,r,g,b):
+	strip.setPixelColor(l,Color(r,g,b))
+	
+def strobetest(strip):
+	on = True
+	while True:
+		if on:			
+			on = False
+			for i in range(strip.numPixels()):
+				strip.setPixelColor(i, Color(255,255,255))
+		else:
+			on = True
+			for i in range(strip.numPixels()):
+				strip.setPixelColor(i, Color(0,0,0))
+		strip.show()
+		time.sleep(100.0/1000)
+		
+if __name__ == '__main__':
+	ledstrip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS)
+	ledstrip.begin()
+	s = sys.stdin.readline().strip()
+	while s not in ['break', 'quit']:
+		message =  s.split("|")
+		returnms = 'e'
+		if(message[0] == '1'):
+			if (len(message) == 5):
+				try: 
+					led = int(message[1])
+					r = int(message[2])
+					g = int(message[3])
+					b = int(message[4])
+					setLed(ledstrip, led,r,g,b)
+					returnms = 'a'
+				except ValueError:
+					returnms = 'e'
+		elif (message[0] == '0'):
+			ledstrip.show()
+			returnms = 'a'
+		s = sys.stdin.readline().strip()
+
diff --git a/src/control/Ledstrip.java b/src/control/Ledstrip.java
new file mode 100644
index 0000000..1e07e7f
--- /dev/null
+++ b/src/control/Ledstrip.java
@@ -0,0 +1,83 @@
+package control;
+
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStreamWriter;
+
+public class Ledstrip {
+    private BufferedReader inp;
+    private BufferedWriter out;
+    private Process p;
+    public Ledstrip(){
+	    String cmd = "sudo python led.py";
+	    try {
+	        p = Runtime.getRuntime().exec(cmd);
+	        inp = new BufferedReader( new InputStreamReader(p.getInputStream()) );
+	        out = new BufferedWriter( new OutputStreamWriter(p.getOutputStream()) );
+	        
+	        setLed(15, 100, 100, 100);	        
+	        strobo();        
+	    }
+	    catch (Exception err) {
+	        err.printStackTrace();
+	    }
+    }
+    
+    public void close(){
+        try {
+			inp.close();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+        try {
+			out.close();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+        p.destroy();
+    }
+    
+    public void setLed(int led, int r, int g, int b) {
+	    try {
+	        out.write( "1|" + led + "|" + r + "|" + g + "|" + b + "\n" );
+	        out.flush();
+	    }
+	    catch (Exception err) {
+	    	err.printStackTrace();
+	    }
+    }
+
+    public void show(){
+	    try {
+	        out.write( "0\n" );
+	        out.flush();
+	    }
+	    catch (Exception err) {
+	    	err.printStackTrace();
+	    }
+    }
+    
+    public void strobo(){
+    	boolean on = true;
+    	while(true){
+    		if(on){
+				for(int i = 1; i < 66; i++){
+					setLed(i, 0, 0, 0);
+				}
+    		}else{
+				for(int i = 1; i < 66; i++){
+					setLed(i, 255, 255, 255);
+				}
+    		}
+    		on = !on;
+    		show();
+    		try {
+				Thread.sleep(100);
+			} catch (InterruptedException e) {
+				e.printStackTrace();
+			}
+    	}
+    }
+}