Version vom 28. August 2014, 18:36 Uhr

Dies ist ein Projekt, an dem momentan aktiv gearbeitet wird. Wenn du Fragen hast oder mitarbeiten möchtest, wende dich an Ollo.

Publikationen

Datei:2014-02-28 Praesi Raumbeleuchtung.pdf

Server

Hardware

Raspberry Pi seriell stumm geschalten
ioBoard Projekt auf Github

Das ioBoard wird über das UART des Raspberry Pis angesprochen. Die Kommunikation zum Raspberry erfolgt über Ethernet, es werden keine weiteren Schnittstellen benötigt.

Software

raspbian (wheezy)
- ser2net
- lighttpd (optional für Webclient)
  - Webserver-Projekt Unterordner web

Konfiguration

In der Konfigurationsdatei /etc/ser2net.conf von ser2net aktiviert man folgende Konfiguration. Alle weiteren können auskommentiert werden:

2001:raw:120:/dev/ttyAMA0:9600 NONE 1STOPBIT 8DATABITS -XONXOFF -LOCAL -RTSCTS

Webserver konfigurieren

$ cd /var/ $ sudo chown pi:pi www/ $ cd cd /var/www/ $ git clone https://github.com/C3MA/uberschalter $ cd uberschalter/web/ $ make

Aktualiseren der lighttpd Konfiguration zu folgender (Muss ggf. erst installiert werden): server.modules = ( "mod_cgi", "mod_access", "mod_alias", "mod_compress",

	"mod_redirect",

"mod_rewrite",

server.document-root = "/var/www"

server.document-root        = "/var/www/uberschalter/web/www"
server.upload-dirs          = ( "/var/cache/lighttpd/uploads" )
server.errorlog             = "/var/log/lighttpd/error.log"
server.pid-file             = "/var/run/lighttpd.pid"
server.username             = "www-data"
server.groupname            = "www-data"
server.port                 = 80


index-file.names            = ( "index.php", "index.html", "index.lighttpd.html" )
url.access-deny             = ( "~", ".inc" )
static-file.exclude-extensions = ( ".php", ".pl", ".fcgi" )
compress.cache-dir          = "/var/cache/lighttpd/compress/"
compress.filetype           = ( "application/javascript", "text/css", "text/html", "text/plain" )

default listening port for IPv6 falls back to the IPv4 port

include_shell "/usr/share/lighttpd/use-ipv6.pl " + server.port
include_shell "/usr/share/lighttpd/create-mime.assign.pl"
include_shell "/usr/share/lighttpd/include-conf-enabled.pl"
$HTTP["url"] =~ "/cgi-bin/" {

       cgi.assign = ( "" => "" )

}
cgi.assign      = (

       ".cgi"  => ""

)

Client

Android

https://bitbucket.org/0110/iorouter

Web

Auf dem RaspberryPi läuft auch Webserver um die Lampen zu steuern: (Zu erreichen im Raum-Netzwerk unter lampi oder 10.23.42.140.)

Lamp Webinterface

Lampenpositionen

Lampenpositionen mit deren Identifikationsnummer

Mqtt

Doku

Folgende Stati werden in MQTT geschickt: /room/light/3/command off /room/light/1/state on /room/light/2/state on /room/light/3/state off /room/light/4/state on /room/light/5/state on /room/light/6/state on /room/light/7/state on /room/light/8/state on /room/light/3/command off /room/light/3/command off /room/light/3/command on /room/light/3/state on Linux Befehl:

$ mosquitto_sub -v -h 10.23.42.31 -t "/room/light/#"

Eine Lampe kann mit folgenden Schema geschalten werden: /room/light/<id>/command (on|off).

Unter Linux wurde das wie folgt getestet: $ mosquitto_pub -h 10.23.42.31 -t "/room/light/3/command" -m "off" $ mosquitto_pub -h 10.23.42.31 -t "/room/light/3/command" -m "on"

Skript

import mosquitto, os, socket, time from threading import Thread

File: /usr/local/sbin/light2mqtt.py

TCP_IP = '127.0.0.1'
TCP_PORT = 2001
BUFFER_SIZE = 1024
mqttBroker="10.23.42.31"
mypid = os.getpid()


client = mosquitto.Mosquitto("RoomLights"+str(mypid))
pollerState = True
oldStates = None
t = None
def processState(ls):
	lightnr=1
	global oldStates
	for light in ls:
		if oldStates is None or light != oldStates[lightnr - 1]:
			lightState = "on" if int(light) == 1 else "off"
			client.publish("/room/light/%s/state" % lightnr, lightState, 0, True)
		lightnr+=1
	oldStates = ls

Light ist das licht 1-6
State ist h oder l

def switchLight(light, state): 
	s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
	s.connect((TCP_IP, TCP_PORT))
	s.send("ollpew%s%s" % (light, state))
	time.sleep(0.2)
	data = s.recv(BUFFER_SIZE)
	s.close()
	data = data.replace("\r", "").split("\n")
	lightState = data[3].split(" ")[1]
	processState(lightState)


def getStates():

       s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
       s.connect((TCP_IP, TCP_PORT))

       s.send("ollpera")

       time.sleep(0.2)

       data = s.recv(BUFFER_SIZE)
       s.close()

	data = data.replace("\r", "").split("\n")

       lightState = data[2].split(" ")[1]

       processState(lightState)

def on_connect(rc):

   #print("Connected with result code "+str(rc))
   client.subscribe("/room/light/+/command")
   pollerState = True

def on_message(userdata, msg):
	topic = msg.topic.strip("/").split("/")
	lightNr = int(topic[2])
	message = str(msg.payload)
	if lightNr >= 1 and lightNr <= 6 and message in ["on", "off"]:
		lightState = "l" if message == "off" else "h"
		switchLight(lightNr, lightState)
def on_disconnect(userdata):
	pollerState = False
	#print "Disconnect"
def statePoller():
	while True:
		if pollerState:
			getStates()
		time.sleep(15) 


client.on_connect = on_connect
client.on_message = on_message
client.on_disconnect = on_disconnect
client.will_set('/room/light/daemon/state', 'offline', 0, True)
t = Thread(target=statePoller)
t.start()
while True:

print "Connect..."

	client.connect(mqttBroker, 1883, 60, True)
	client.publish('/room/light/daemon/state', 'online', 0, True)
	while client.loop() == 0:
		pass

print "Reconnecting..."

time.sleep(60)

Autostart im Raspberry: Folgende Zeile in /etc/rc.local einfügen: (vor dem exit 0 wenn vorhanden)

Start the monster deamon to rule the world

/usr/bin/python /usr/local/sbin/light2mqtt.py &