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ScottyTM/dht.lua

Created April 19, 2017 00:38
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dht.lua
-- based on http://www.beerandchips.net/2015/12/26/making-nodemcu-lua-esp8266-weather-station/
-- with modifications for float firmware and dht11, also it now close the connection after data was sent
PIN = 4 -- data pin, GPIO2
chipserial = node.chipid()
-- run the server
srv=net.createServer(net.TCP, 4)
print("Server created on " .. wifi.sta.getip())
srv:listen(80,function(conn)
conn:on("receive",function(conn,request)
print(request)
status, temp, humi = dht.read11(PIN)
if string.match(request, "machine") then
conn:send("\"Temperature\": \""..temp.."\", \"Humidity\": \""..humi.."\"")
else
conn:send('<html>')
conn:send('<title>On Deck</title></head>')
conn:send('<body bgcolor=\"#ffffff\">')
conn:send('<center>')
conn:send('<table bgcolor=\"#0000ff\" width=\"90%\" border=\"0\">')
conn:send('<tr>')
conn:send(' <td><font size=\"2\" face=\"arial, helvetica\" color=\"#ffffff\"><center>Temperature</center></font></td>')
conn:send('</tr>')
conn:send('<tr>')
conn:send(' <td><font size=\"7\" face=\"arial, helvetica\" color=\"#ffffff\"><center>'..temp..'&deg;C</center></font></td>')
conn:send('</tr>')
conn:send('<tr>')
conn:send(' <td><font size=\"2\" face=\"arial, helvetica\" color=\"#ffffff\"><center>Humidity</center></font></td>')
conn:send('</tr>')
conn:send('<tr>')
conn:send(' <td><font size=\"5\" face=\"arial, helvetica\" color=\"#ffffff\"><center>'..humi..'%</center></font></td>')
conn:send('</tr>')
conn:send('</table>')
conn:send('</center>')
conn:send('</body></html>')
end
conn:on("sent",function(conn) conn:close() end)
end)
end)
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