create Dockerfile and config for rpi udp strip

clients/strip-rpi-udp/Dockerfile

@@ -0,0 +1,11 @@
+FROM python:3.7.2-alpine3.9
+
+RUN echo "@community http://dl-cdn.alpinelinux.org/alpine/edge/community" >> /etc/apk/repositories
+RUN apk add --update --no-cache ca-certificates gcc g++ curl openblas-dev@community
+RUN ln -s /usr/include/locale.h /usr/include/xlocale.h
+
+RUN pip install --no-cache-dir RPi.GPIO
+
+WORKDIR /usr/src/rpi-udp-strip
+COPY . /usr/src/rpi-udp-strip
+CMD python3.7 -u /usr/src/rpi-udp-strip/rpi_udp_strip.py

clients/strip-rpi-udp/config.py

@@ -0,0 +1,11 @@
+from util.RGBStrip import RGBStrip as RGBStrip
+
+#use the BCM pin numbers here
+rgbStrips = [
+    #RGBStrip("Test Dahem", 4, 17 , 22),
+    RGBStrip("Unter Theke", 20, 16 , 21),
+    RGBStrip("Über Theke", 22, 13, 27),
+    RGBStrip("Fensterbank", 5, 26, 6)
+]
+# set remote address and port
+remoteaddr = ("192.168.0.255",8002)

clients/strip-rpi-udp/rpi_udp_strip.py

@@ -1,30 +1,20 @@
 
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
-from util.RGBStrip import RGBStrip as RGBStrip
 from util.UDPListner import UDPListner as UDPListner
+import config
 import sys
 
-#use the BCM pin numbers here
-rgbStrips = [
-    #RGBStrip("Test Dahem", 4, 17 , 22),
-    RGBStrip("Unter Theke", 20, 16 , 21),
-    RGBStrip("Über Theke", 22, 13, 27),
-    RGBStrip("Fensterbank", 5, 26, 6)
-]
-# set remote address and port
-remoteaddr = ("192.168.0.255",8002)
-
-
 udplistners = []
-for rgbStrip in rgbStrips:
-    udplistners.append(UDPListner(rgbStrip,remoteaddr))
+
+for rgbStrip in config.rgbStrips:
+    udplistners.append(UDPListner(rgbStrip,config.remoteaddr))
 
 while True:
     try:
         for udplistner in udplistners:
             udplistner.loop()
     except KeyboardInterrupt:
-        for rgbStrip in rgbStrips:
+        for rgbStrip in config.rgbStrips:
             rgbStrip.stop()
         sys.exit()

clients/strip-rpi-udp/util/RGBStrip.py

@@ -1,9 +1,12 @@
 try:
     import RPi.GPIO as GPIO
+    demo = False
 except ImportError:
-    print("Install RPi.GPIO")
+    print("!!! Install RPi.GPIO, running demo !!!")
+    demo = True
 # setup PRi.GPIO
-GPIO.setmode(GPIO.BCM)
+if not demo:
+    GPIO.setmode(GPIO.BCM)
 
 class RGBStrip:
     STRIP_NAME = None
@@ -25,48 +28,52 @@ class RGBStrip:
         self.GREEN_PIN = GREEN_PIN
         self.BLUE_PIN = BLUE_PIN
 
-        # setup RED
-        GPIO.setup(self.RED_PIN, GPIO.OUT)
-        self.RED_PWM = GPIO.PWM(self.RED_PIN, self.hertz)
-        self.RED_PWM.start(0)
-        # setup GREEN
-        GPIO.setup(self.GREEN_PIN, GPIO.OUT)
-        self.GREEN_PWM = GPIO.PWM(self.GREEN_PIN, self.hertz)
-        self.GREEN_PWM.start(0)
-        # setup BLUE
-        GPIO.setup(self.BLUE_PIN, GPIO.OUT)
-        self.BLUE_PWM = GPIO.PWM(self.BLUE_PIN, self.hertz)
-        self.BLUE_PWM.start(0)
+        if not demo:
+            # setup RED
+            GPIO.setup(self.RED_PIN, GPIO.OUT)
+            self.RED_PWM = GPIO.PWM(self.RED_PIN, self.hertz)
+            self.RED_PWM.start(0)
+            # setup GREEN
+            GPIO.setup(self.GREEN_PIN, GPIO.OUT)
+            self.GREEN_PWM = GPIO.PWM(self.GREEN_PIN, self.hertz)
+            self.GREEN_PWM.start(0)
+            # setup BLUE
+            GPIO.setup(self.BLUE_PIN, GPIO.OUT)
+            self.BLUE_PWM = GPIO.PWM(self.BLUE_PIN, self.hertz)
+            self.BLUE_PWM.start(0)
 
     def RGB(self,red,green,blue,brightness = 100):
-        #print(self.STRIP_NAME,red,green,blue)
-        if(red < 0):
-            red = 0
-        if(red > 255):
-            red = 255
-        
-        if(green < 0):
-            green = 0
-        if(green > 255):
-            green = 255
-        
-        if(blue < 0):
-            blue = 0
-        if(blue > 255):
-            blue = 255
-        
-        if(brightness < 0):
-            brightness = 0
-        if(brightness > 100):
-            brightness = 100
-        self.RED_PWM.ChangeDutyCycle(round(red/255*100,2))
-        self.GREEN_PWM.ChangeDutyCycle(round(green/255*100,2))
-        self.BLUE_PWM.ChangeDutyCycle(round(blue/255*100,2))
+        if demo:
+            print(self.STRIP_NAME,red,green,blue)
+        else:
+            if(red < 0):
+                red = 0
+            if(red > 255):
+                red = 255
+            
+            if(green < 0):
+                green = 0
+            if(green > 255):
+                green = 255
+            
+            if(blue < 0):
+                blue = 0
+            if(blue > 255):
+                blue = 255
+            
+            if(brightness < 0):
+                brightness = 0
+            if(brightness > 100):
+                brightness = 100
+            self.RED_PWM.ChangeDutyCycle(round(red/255*100,2))
+            self.GREEN_PWM.ChangeDutyCycle(round(green/255*100,2))
+            self.BLUE_PWM.ChangeDutyCycle(round(blue/255*100,2))
 
     def stop(self):
-        self.RED_PWM.ChangeDutyCycle(0)
-        self.GREEN_PWM.ChangeDutyCycle(0)
-        self.BLUE_PWM.ChangeDutyCycle(0)
-        self.RED_PWM.stop()
-        self.GREEN_PWM.stop()
-        self.BLUE_PWM.stop()
+        if not demo:
+            self.RED_PWM.ChangeDutyCycle(0)
+            self.GREEN_PWM.ChangeDutyCycle(0)
+            self.BLUE_PWM.ChangeDutyCycle(0)
+            self.RED_PWM.stop()
+            self.GREEN_PWM.stop()
+            self.BLUE_PWM.stop()