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ajax.lua
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74 lines (70 loc) · 3.02 KB
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pin1=3
pin2=4
gpio.mode(pin1,gpio.OUTPUT)
gpio.mode(pin2,gpio.OUTPUT)
function split(s, delimiter)
result = {};
for match in (s..delimiter):gmatch("(.-)"..delimiter) do
table.insert(result, match);
end
return result;
end
function urlencode(payload)
result = {};
list=split(payload,"\r\n")
--print(list[1])
list=split(list[1]," ")
--print(list[2])
list=split(list[2],"\/")
table.insert(result, list[1]);
table.insert(result, list[2]);
table.insert(result, list[3]);
return result;
end
function sendHeader(conn)
conn:send("HTTP/1.1 200 OK\r\n")
conn:send("Access-Control-Allow-Origin: *\r\n")
conn:send("Content-Type: application/json; charset=utf-8\r\n")
conn:send("Server:NodeMCU\r\n")
conn:send("Connection: close\r\n\r\n")
end
function index(conn)
conn:send('HTTP/1.1 200 OK\r\nConnection: keep-alive\r\nCache-Control: private, no-store\r\n\r\n\
<!DOCTYPE HTML><html><head><style>input[type=button] {font-size:large;width:10em;height:5em;}</style>\
<meta content="text/html;charset=utf-8"><title>ESP8266</title>\
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">\
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>\
<script>$(document).ready(function(){\
$("#btn-4-on").click(function(){$.ajax({url:"/write/4/0",success:function(result){console.log(result)}});});\
$("#btn-4-off").click(function(){$.ajax({url:"/write/4/1",success:function(result){console.log(result);}});});\
$("#btn-3-on").click(function(){$.ajax({url:"/write/3/0",success:function(result){console.log(result);}});});\
$("#btn-3-off").click(function(){$.ajax({url:"/write/3/1",success:function(result){console.log(result);}});});\
});</script>\
<body bgcolor="#ffe4c4">\
<h2>GPIO3</h2><hr><div><input id="btn-3-on" type="button" value="ON" /> <input id="btn-3-off" type="button" value="OFF" /></div>\
<h2>GPIO4</h2><hr><div><input id="btn-4-on" type="button" value="ON" /> <input id="btn-4-off" type="button" value="OFF" /></div>\
</body></html>')
end
srv=net.createServer(net.TCP)
srv:listen(80,function(conn)
conn:on("receive",function(conn,payload)
print("Http Request..")
list=urlencode(payload)
if (list[2]=="") then
index(conn)
elseif (list[2]=="write") then
local pin = tonumber(list[3])
local status = tonumber(list[4])
gpio.write(pin, status)
sendHeader(conn)
conn:send("{\"result\":\"ok\",\"digitalPin\": "..pin..", \"status\": "..gpio.read(pin).."}")
elseif (list[2]=="read") then
sendHeader(conn)
conn:send("{\"result\":\"ok\", \"digitalPins\": [{\"digitalPin\": "..pin1..", \"status\": "..gpio.read(pin1).."},{\"digitalPin\": "..pin2..", \"status\": "..gpio.read(pin2).."}]}")
else
sendHeader(conn)
conn:send("{\"result\":\"error\",\"message\": \"command not found\"}")
end
conn:close()
end)
end)