BeamerControl
Hardware
- ESP8266
- MAX3232
Software
Es wird die LUA Firmware vorausgesetzt.
Mit folgendem ESP8266/Programmer kann die folgende Initialisierungsdatei beamer_init.lua geschrieben werden:
print("Booting... Beamer v0.81")
wifi.setmode(wifi.STATION)
wifi.sta.config("WIFI","PASSWORD")
global_c=nil
function netPrint(str)
if global_c~=nil then
global_c:send(str)
global_c:send("\\\n")
end
end
function startTelnetServer(dummy)
s=net.createServer(net.TCP, 180)
s:listen(2323,function(c)
global_c=c
function s_output(str)
if(global_c~=nil)
then global_c:send(str)
end
end
node.output(s_output, 0)
c:on("receive",function(c,l)
node.input(l)
end)
c:on("disconnection",function(c)
node.output(nil)
global_c=nil
end)
print("Welcome to NodeMcu world.")
end)
print("WiFi up and running")
end
m = mqtt.Client("beamer", 120, "", "")
function startMqttService(c)
m:connect("10.23.XXX.XXX", 1883, 0, nil)
tmr.alarm(2, 2000, 0, function()
m:subscribe("/room/beamer/#",0)
end)
end
function configureMqttService(c)
m:on("connect", function(con)
netPrint ("MQTT connected")
m:publish("/room/beamer/ip",wifi.sta.getip(),0,0, function(conn) netPrint("Sent IP") end)
end)
m:on("offline", function(con)
netPrint ("MQTT offline")
startMqttService()
end)
m:on("message", function(conn, topic, data)
netPrint(topic .. ":" )
if data ~= nil then
netPrint(topic .. ":" .. data)
if data == "OFF" and topic == "/room/beamer/command" then
netPrint ("Shutdown beamer")
uart.write(0, "* 0 IR 002\\\r")
end
if data == "ON" and topic == "/room/beamer/command" then
netPrint ("Start Beamer")
uart.write(0, "OKOKOKOKOK\\\r")
end
end
end)
startMqttService()
end
tmr.alarm(1, 1000, 1, function()
if wifi.sta.getip()=="0.0.0.0" or wifi.sta.getip() == nil then
--print("Connect AP, Waiting...")
else
--print("Connected")
--print( wifi.sta.getip() )
startTelnetServer()
configureMqttService()
tmr.stop(1)
end
end)
uart.setup(0,9600,8,0,1,0)
-- Send all UART stuff to the debug client
--uart.on("data",4, function(data)
-- if global_c~=nil then
-- global_c:send(data)
-- end
--end, 0)
Schnittstelle
Der Beamer kann An:
mosquitto_pub -h IP1.IP2.IP3.IP4 -t "/room/beamer/command" -m "OFF"
und aus-geschalten werden:
mosquitto_pub -h IP1.IP2.IP3.IP4 -t "/room/beamer/command" -m "ON"
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