README: Tidy the sample code
Signed-off-by: Nick Andrew <nick@nick-andrew.net>
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README.md
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README.md
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@ -81,7 +81,7 @@ Because Lua is a high level language and several modules are built into the firm
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srv:listen(80, function(conn)
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conn:on("receive", function(conn,payload)
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print(payload)
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conn:send("<h1> Hello, NodeMcu.</h1>")
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conn:send("<h1> Hello, NodeMCU.</h1>")
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end)
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conn:on("sent", function(conn) conn:close() end)
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end)
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@ -95,7 +95,7 @@ m = mqtt.Client("clientid", 120, "user", "password")
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-- setup Last Will and Testament (optional)
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-- Broker will publish a message with qos = 0, retain = 0, data = "offline"
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-- to topic "/lwt" if client don't send keepalive packet
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-- to topic "/lwt" if client doesn't send keepalive packet
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m:lwt("/lwt", "offline", 0, 0)
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m:on("connect", function(con) print("connected") end)
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@ -109,19 +109,19 @@ m:on("message", function(conn, topic, data)
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end
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end)
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-- m:connect( host, port, secure, auto_reconnect, function(client) )
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-- m:connect(host, port, secure, auto_reconnect, function(client) end)
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-- for secure: m:connect("192.168.11.118", 1880, 1, 0)
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-- for auto-reconnect: m:connect("192.168.11.118", 1880, 0, 1)
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m:connect("192.168.11.118", 1880, 0, 0, function(conn) print("connected") end)
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-- subscribe topic with qos = 0
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-- subscribe to topic with qos = 0
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m:subscribe("/topic", 0, function(conn) print("subscribe success") end)
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-- or subscribe multiple topic (topic/0, qos = 0; topic/1, qos = 1; topic2 , qos = 2)
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-- or subscribe multiple topics (topic/0, qos = 0; topic/1, qos = 1; topic2, qos = 2)
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-- m:subscribe({["topic/0"]=0,["topic/1"]=1,topic2=2}, function(conn) print("subscribe success") end)
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-- publish a message with data = hello, QoS = 0, retain = 0
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m:publish("/topic", "hello", 0, 0, function(conn) print("sent") end)
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m:close(); -- if auto-reconnect == 1, will disable auto-reconnect and then disconnect from host.
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m:close(); -- if auto-reconnect == 1, it will disable auto-reconnect and then disconnect from host.
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-- you can call m:connect again
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```
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@ -177,7 +177,7 @@ cu:send("hello")
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## If you want to run something when the system boots
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```lua
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--init.lua will be excuted
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--init.lua will be executed
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file.open("init.lua", "w")
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file.writeline([[print("Hello, do this at the beginning.")]])
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file.close()
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@ -197,12 +197,12 @@ cu:send("hello")
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end
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node.output(s_output, 0) -- re-direct output to function s_ouput.
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c:on("receive", function(c, l)
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node.input(l) -- works like pcall(loadstring(l)) but support multiple separate line
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node.input(l) -- works like pcall(loadstring(l)) but support multiples separate lines
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end)
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c:on("disconnection", function(c)
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node.output(nil) -- un-regist the redirect output function, output goes to serial
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node.output(nil) -- un-register the redirect output function, output goes to serial
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end)
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print("Welcome to NodeMcu world.")
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print("Welcome to NodeMCU world.")
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end)
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```
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