commit 3daf57e440641f08d87e88650360e0499c9a8c98
Author: Merlin Raschtuttis <merlin.raschtuttis@chaospott.de>
Date:   Sun Feb 4 15:28:47 2018 +0000

    "Initial" Commit to prevent further loss of data

diff --git a/power_mqtt1.py b/power_mqtt1.py
new file mode 100755
index 0000000..1bb3f04
--- /dev/null
+++ b/power_mqtt1.py
@@ -0,0 +1,138 @@
+#!/usr/bin/env python3
+
+import smbus
+import time
+import paho.mqtt.client as mqt
+
+bus = smbus.SMBus(1)
+mqtc = mqt.Client()
+
+
+
+# Settings for connection
+host = "mqtt.chaospott.de"
+topic= "foobar/oben/licht"
+port = 1883
+
+# Callbacks
+rc = 0
+
+def on_connect(mosq, obj, foo ,bar ):
+	print( "Connected" )
+
+def on_message(mosq, obj, msg):
+	print( "Received on topic: " + msg.topic + " Message: "+str(msg.payload) );
+	msgs(msg.payload)
+
+def on_subscribe(mosq, obj, mid, granted_qos):
+	print("Subscribed OK")
+
+# Set callbacks
+mqtc.on_message = on_message
+mqtc.on_connect = on_connect
+mqtc.on_subscribe = on_subscribe
+
+# Connect and subscribe
+
+def init_mqtt():
+    mqtc.connect(host, port, 60)
+    mqtc.subscribe(topic, 0)
+    rc  = 0
+    while rc == 0:
+        rc = mqtc.loop()
+
+
+
+o1 = 0
+o2 = 0
+
+#Funktion Setze Bit in Variable / Function Set Bit in byte
+def set_bit(value, bit):
+  	#print(value | (1<<bit))
+    return value | (1<<bit)
+
+#Funktion rücksetzte Bit in Variable / Function reset Bit in byte
+def clear_bit(value, bit):
+ 	#print(value & ~(1<<bit))
+    return value & ~(1<<bit)
+
+
+#Buttonbefehle
+def on(i):
+    global o1
+    global o2
+# Change I2C Output-Card
+    if i > 7:
+        o2 = set_bit(o2, i-8)
+        bus.write_byte(0x21,255-o2)
+    else:
+        o1 = set_bit(o1, i)
+        bus.write_byte(0x3f,255-o1)
+
+def off(i):
+    global o1
+    global o2
+# Change I2C Output-Card
+    if i > 7:
+        o2 = clear_bit(o2, i-8)
+        bus.write_byte(0x21,255-o2)
+    else:
+        o1 = clear_bit(o1, i)
+        bus.write_byte(0x3f,255-o1)
+
+def switch(i,speed=0.5):
+    on(i)
+    time.sleep(speed)
+    off(i)
+
+commands = { "flur" : 0, "baellebad" : 1, "lounge-front": 2, "lounge-back" : 3,"baellebad-ein" : 4, "lounge-ein" : 5, "cantina-ein" : 6, "zentral-aus" : 7,  "flur-strobo": 9, "cantina" : 8}
+
+def msgs(inp):
+    c = inp.decode("utf-8")
+    l = len(c)
+
+    if l < 3:
+        try:
+            msg = int(inp)
+        except ValueError:
+            print ( "No valid value")
+            return
+        if (msg == 9):
+            for i in range(1000):
+                switch(0, speed=0.05)
+                time.sleep(0.06)
+        elif (msg == 99):
+            for i in range(50):
+                switch(8, speed=0.05)
+                time.sleep(0.06)
+        else:
+            switch(msg)
+
+    else:
+        cmds = c.split(",")
+        print ( cmds[0], len(cmds) )
+        if len(cmds) == 2:
+            try:
+                command = commands[cmds[0]]
+            except KeyError:
+                return
+            try:
+                arg = int (cmds[1])
+            except ValueError:
+                return
+            switch(command,speed = 3*arg/100+0.7 )
+            if ( command == 9 ):
+                for i in range(arg):
+                    switch(0, speed=0.05)
+                    time.sleep(0.06)
+
+        else:
+            try:
+                switch(commands[c])
+            except KeyError:
+                return
+
+
+init_mqtt()
+while 1:
+    time.sleep(10)