restructure code base

README

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+SPI has to be enabled:
+
+	sudo raspi-config -> Interface -> SPI
+

client/client.py

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+import socket
+
+
+def client_program():
+    host = "192.168.188.61"
+    port = 5000 
+
+    client_socket = socket.socket()  # instantiate
+    client_socket.connect((host, port))  # connect to the server
+
+    message = input(" -> ")  # take input
+
+    while message.lower().strip() != 'bye':
+        client_socket.send(message.encode())  # send message
+        message = input(" -> ")  # again take input
+
+    client_socket.close()  # close the connection
+
+
+if __name__ == '__main__':
+    client_program()

install_on_pi.sh

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+scp server/* pi@192.168.188.61:~/led_controll/
+#ws2801.py --daemon

requirements

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+RPi.GPIO
+Adafruit-WS2801
+Adafruit-GPIO
+
+

server/color_mode.py

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+def color_cycle(speed):
+    if int(speed) == 0:
+        delay = 0
+    else:
+        delay = 1/int(speed) * 10
+
+    r = 255
+    g = 0
+    b = 0
+    while True:
+        while r > 0:
+            r = r-1
+            g = g+1
+            set_color(r,g,b)
+            time.sleep(delay)
+        while g > 0:
+            g = g-1
+            b = b+1
+            set_color(r,g,b)
+            time.sleep(delay)
+        while b > 0:
+            b = b-1
+            r = r+1
+            set_color(r,g,b)
+            time.sleep(delay)
+
+def visualizer():
+    for volume in sys.stdin:
+        volume = int(volume)
+        set_color(volume,0,0)

server/led_controll.py

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+#!/usr/bin/env python3
+import sys
+import getopt
+import time
+
+import "ws2801"
+import "server"
+
+def helpmenu():
+    print("Options:")
+    print("-h           show help")
+    print("-s <color>   color in hex")
+    print("-c <speed>   colorcycle")
+    
+def main(argv):
+    
+    if not sys.stdin.isatty():
+        visualizer()
+        sys.exit()
+
+    try:
+        opts, args = getopt.getopt(argv,"hds:c:r")
+    except getopt.GetoptError:
+        print("ws2801.py: invalid option")
+        print("Try 'ws2801.py -h' for help")
+        sys.exit(2)
+
+    for opt, arg in opts:
+        if opt == "-h":
+            helpmenu()
+            sys.exit()
+        elif opt == "-s":
+            r,g,b = hex_to_rgb(arg)
+            set_color(r,g,b)
+            sys.exit()
+        elif opt == "-c":
+            color_cycle(arg)
+				elif opt == "-d":
+						start_server()
+
+    helpmenu()
+    sys.exit()
+
+if __name__ == "__main__":
+    main(sys.argv[1:])

server/server.py

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+import socket
+
+def start_server():
+    host = socket.gethostname()
+    port = 5000  
+
+    server_socket = socket.socket()
+    server_socket.bind((host, port)) 
+
+    # configure how many client the server can listen simultaneously
+    server_socket.listen(1)
+    conn, address = server_socket.accept()  # accept new connection
+    print("Connection from: " + str(address))
+    while True:
+        # receive data stream. it won't accept data packet greater than 1024 bytes
+        data = conn.recv(1024).decode()
+        print(str(data))
+				
+
+    conn.close()  # close the connection
+

server/ws2801.py

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+import RPi.GPIO as GPIO
+import Adafruit_WS2801
+import Adafruit_GPIO.SPI as SPI
+
+PIXEL_COUNT = 32
+
+SPI_PORT   = 0
+SPI_DEVICE = 0
+pixels = Adafruit_WS2801.WS2801Pixels(PIXEL_COUNT, spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE), gpio=GPIO)
+   
+def hex_to_rgb(hex):
+    r = int(hex[0:2],16)
+    g = int(hex[2:4],16)
+    b = int(hex[4:6],16)
+    print(r,g,b)
+    return r,g,b
+
+def set_color(r,g,b):
+    for i in range(pixels.count()):
+        pixels.set_pixel(i, Adafruit_WS2801.RGB_to_color(r,g,b))
+    pixels.show()
+
+def clear_pixels():
+    pixels.clear()
+    pixels.show()