From bdf89a056fc49b80e06597775353255ee5069e5a Mon Sep 17 00:00:00 2001
From: Russ Handorf <rhandorf@handorf.org>
Date: Thu, 14 Feb 2019 21:28:57 -0500
Subject: [PATCH] added button function

---
 README.md |  2 +-
 server.py | 28 ++++++++++++++++++++++++++--
 2 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index a313ae7..2482c3a 100644
--- a/README.md
+++ b/README.md
@@ -23,4 +23,4 @@ sudo python server.py
 
 
 *Potenial bugs*
-1. I'm not entirely convinced the timeout to clear a pixel is making its way over. Might have to make a double check in the Python as well
+*Fixed?* 1. I'm not entirely convinced the timeout to clear a pixel is making its way over. Might have to make a double check in the Python as well
diff --git a/server.py b/server.py
index 467cf0f..5167904 100644
--- a/server.py
+++ b/server.py
@@ -2,6 +2,12 @@ import socket
 import threading
 import time
 from neopixel import *
+import RPi.GPIO as GPIO
+import time
+
+GPIO.setmode(GPIO.BCM)
+
+GPIO.setup(17, GPIO.IN, pull_up_down=GPIO.PUD_UP)
 
 LED_COUNT      = 1024      # Number of LED pixels.
 LED_PIN        = 18      # GPIO pin connected to the pixels (18 uses PWM!).
@@ -12,6 +18,8 @@ LED_BRIGHTNESS = 128     # Set to 0 for darkest and 255 for brightest
 LED_INVERT     = False   # True to invert the signal (when using NPN transistor level shift)
 LED_CHANNEL    = 0       # set to '1' for GPIOs 13, 19, 41, 45 or 53
 
+on = True
+
 bind_ip = '0.0.0.0'
 bind_port = 10000
 strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS, LED_CHANNEL)
@@ -31,7 +39,6 @@ for i in range(1024):
   pixel_status.append(0)
 
 strip.show()
-
 print "Starting Server"
 
 def led_timeout(strip,pixel):
@@ -41,10 +48,25 @@ def led_timeout(strip,pixel):
       strip.setPixelColor(i, Color(0,0,0))
 
 while True:
+  input_state = GPIO.input(17)
+  if input_state == False:
+    if on == True:
+      on = False
+      for i in range(1024):
+        strip.setPixelColor(i, Color(0,0,0))
+      strip.show()
+    else:
+      on = True
+      for i in range(1024):
+        strip.setPixelColor(i, pixels[i])
+    time.sleep(0.5)
+
   data, addr = server.recvfrom(1024)
   if data:
-    #print 'Received {}'.format(data)
     elements=format(data).split(",")
+    if len(elements)>2:
+      print "Kill the sniffer and start over"
+      exit(0)
     color=elements[0].split(":")
     pixel_color=pixels[int(color[1])]
     red=pixel_color[0]
@@ -62,4 +84,6 @@ while True:
     if color[0]=="B":
       strip.setPixelColor(int(color[1]), Color(green, red, int(elements[1])))
       pixels[int(color[1])] =(red,green,int(elements[1]))
+
+  if on==True:  
     strip.show()
-- 
2.17.1