LightwallController/Minimal

Diese Variante des LightwallController nutzt/ stellt folgende Schnittstellen bereit:

USB-UART
DMX

Es muss außerdem der Microkontroller mit 5V über USB versorgt werden. Der Fullcircle-DMX RJ45 Stecker benötigt dessweiteren 12V.

Schnittstellen

2xUSB
- USB-UART (Steuerung des Mikrocontrollers)
- Spannungsversorgung des Mikrocontrollers
12V
RJ45 DMX-Fullcircle Ausgang

Komponenten

Dieses Projekt greift auf folgende Komponenten zurück:

STM32F4 Discovery Board
LightwallController#DMX-Shield
Splitpeater
- Splipeater GIT-Version cec779f28e (als Variante 1)
Lightwallcontroller Firmware
- Minimale Version der Firmware

Firmware

Datei:LightwallcontrollerMinimal.zip

Hardware-Dokumentation

Orginal geäztes DMX-Shield
Fliegender Nachbau
Splipeater mit 12V-Anschluss
Gehäuseseite mit RJ45-DMX und 12V-Eingang
Gehäuseseite USB-UART und USB für Spannungsversorgung

Mqtt

Anwendung

Status auslesen

mosquitto_sub -v -h 10.23.43.191 -t "/room/lighttiles/#"

Eine Lampe ändern

mosquitto_pub -h 10.23.43.191 -t "/room/lighttiles/5/command" -m "00FF00"
mosquitto_pub -h 10.23.43.191 -t "/room/lighttiles/6/command" -m "off"

Controller Umsetzung

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

File: /usr/local/sbin/lighttile2mqtt.py

TCP_IP = '127.0.0.1'
TCP_PORT = 2002
BUFFER_SIZE = 1024
reLightColor = re.compile("[0-9A-F]{6}")

Prometheus
mqttBroker="10.23.42.31"
BigBrother

mqttBroker="10.23.43.191"
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]:
			if light == "000000":
			    light = "off"
			client.publish("/room/lighttiles/%s/state" % lightnr, light, 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))
	if state == "off":
	    state = "000000"
	s.send("rgb write %s %s %s %s\r\n" % (light-1, int(state[:2],16), int(state[2:4],16), int(state[4:],16)))
	time.sleep(0.1)
	data = s.recv(BUFFER_SIZE)
	s.close()
	processState(getStates())
def getStates():

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

       s.send("\r\n")
       time.sleep(0.1)
       data = s.recv(BUFFER_SIZE)
       
       s.send("dmx show\r\n")
       time.sleep(0.1)
       data = s.recv(BUFFER_SIZE).replace("\r", "").split("\n")[2]

	if len(data) < 36:
	    s.send("rgb write 5 0 0 0\r\n")

           time.sleep(0.1)

	    data = s.recv(BUFFER_SIZE)
	    s.send("dmx show\r\n")
	    time.sleep(0.1)
	    data = s.recv(BUFFER_SIZE).replace("\r", "").split("\n")[2]
	s.close()

       return (data[:6], data[6:12], data[12:18], data[18:24], data[24:30], data[30:])

def on_connect(rc):

   print("Connected with result code "+str(rc))
   client.subscribe("/room/lighttiles/+/command")
   processState(getStates())

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 == "off" or reLightColor.match(message)):
		switchLight(lightNr, message)
def on_disconnect(userdata):
	#print "Disconnect"
	pass
client.on_connect = on_connect
client.on_message = on_message

client.on_disconnect = on_disconnect

client.will_set('/room/lighttiles/daemon/state', 'offline', 0, True)
while True:
	print "Connect..."
	client.connect(mqttBroker, 1883, 60, True)

   	client.publish('/room/lighttiles/daemon/state', 'online', 0, True)

while client.loop() == 0: pass print "Reconnecting..." time.sleep(60)