38 lines
1010 B
Lua
38 lines
1010 B
Lua
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local t = require('ds18b20')
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local port = 80
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local pin = 3 -- gpio0 = 3, gpio2 = 4
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local gconn = {} -- local variable for connection
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local function readout(temps)
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local resp = "HTTP/1.1 200 OK\nContent-Type: text/html\nRefresh: 5\n\n" ..
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"<!DOCTYPE HTML>" ..
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"<html><body>" ..
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"<b>ESP8266</b></br>"
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for addr, temp in pairs(temps) do
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resp = resp .. string.format("Sensor %s: %s ℃</br>",
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('%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X '):format(addr:byte(1,8)), temp)
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end
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resp = resp ..
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"Node ChipID: " .. node.chipid() .. "<br>" ..
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"Node MAC: " .. wifi.sta.getmac() .. "<br>" ..
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"Node Heap: " .. node.heap() .. "<br>" ..
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"Timer Ticks: " .. tmr.now() .. "<br>" ..
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"</html></body>"
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gconn:send(resp)
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gconn:on("sent",function(conn) conn:close() end)
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end
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do
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local srv = net.createServer(net.TCP)
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srv:listen(port,
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function(conn)
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gconn = conn
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-- t:read_temp(readout) -- default pin value is 3
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t:read_temp(readout, pin)
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end)
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end
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