85 lines
2.3 KiB
Lua
85 lines
2.3 KiB
Lua
dofile("wlancfg.lua")
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dofile("timecore.lua")
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print("Initialize Wordclock")
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function startTimeupdate()
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-- Found: http://thearduinoguy.org/using-an-esp8266-as-a-time-source-part-2/
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-- retrieve the current time from Google
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conn=net.createConnection(net.TCP, 0)
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-- Send the HTTP request
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conn:on("connection",function(conn, payload)
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conn:send("HEAD / HTTP/1.1\r\n"..
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"Host: google.com\r\n"..
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"Accept: */*\r\n"..
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"User-Agent: Mozilla/4.0 (compatible; esp8266 Lua;)"..
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"\r\n\r\n")
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end)
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-- Extract the time from the answer
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conn:on("receive", function(conn, payload)
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local timestr = string.sub(payload,string.find(payload,"Date: ")
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+6,string.find(payload,"Date: ")+35)
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-- time looks like: Tue, 12 Apr 2016 16:26:31 GMT
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print('Time: '.. timestr)
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local firstComma=string.find(timestr, ",")
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dow=string.sub(timestr, 0, firstComma-1)
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nextParts=string.sub(timestr, firstComma+1)
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i=0
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hourminsectxt=nil
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-- Split the text at each space
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for str in string.gmatch(nextParts, "([^ ]+)") do
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if (i==0) then
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day=str
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elseif (i==1) then
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month=convertMonth(str)
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elseif (i==2) then
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year=str
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elseif (i==3) then
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hourminsectxt=str
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end
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i=i+1
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end
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-- Extract the time
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if (hourminsectxt ~= nil) then
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i=0
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-- split the text at each :
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for str in string.gmatch(hourminsectxt, "([^:]+)") do
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if (i==0) then
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hour=str
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elseif (i==1) then
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minutes=str
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elseif (i==2) then
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seconds=str
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end
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i=i+1
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end
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end
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print("---------------")
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year, month, day, hour, minutes, seconds = getLocalTime(year, month, day, hour, minutes, seconds,dow)
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print(year)
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print(month)
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print(day)
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print(hour)
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print(minutes)
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print(seconds)
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print("---------------")
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conn:close()
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end)
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conn:connect(80,'google.com')
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end
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-- Wait to be connect to the WiFi access point.
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tmr.alarm(0, 100, 1, function()
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if wifi.sta.status() ~= 5 then
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print("Connecting to AP...")
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else
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tmr.stop(0)
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print('IP: ',wifi.sta.getip())
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-- Initaly set the time
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startTimeupdate()
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-- Update the time each minute
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tmr.alarm(1, 60000, 1, function()
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startTimeupdate()
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end)
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end
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end) |