conn:send conn:on trying to find info on how to use.
- Thread starter be80be
- Start date
djsfantasi
- Joined Apr 11, 2010
- 9,163
If you can accept a refresh every few seconds, code a meta tag in your web page. Here's the code. Copy and paste it into the document you wish to reload. Once in there, change the number of seconds you wish the page to wait before starting the reloading process. The example is set to 15 seconds. This code goes in between the HEAD tags.
<META HTTP-EQUIV="refresh" CONTENT="15">
jeremiahlandi
- Joined Nov 17, 2015
- 1
I still havn't figure out conn:send. The lua documentation has some information around it.
https://github.com/nodemcu/nodemcu-firmware
I have been working on this project, and have been trying to style the HTML. I think inline styling is the only option for the conn:send. If anyone has any information on how it reads/rends let me know.
As an FYI, I came across this project on the ESP8266 forums (http://www.esp8266.com/viewtopic.php?f=19&t=990).
They fixed the double in their code with the following:
Code:
-- A simple http server
srv=net.createServer(net.TCP)
srv:listen(80,function(conn)
conn:on("receive",function(conn,payload)
print(payload)
conn:send("<h1> Hello, NodeMcu.</h1>")
end)
conn:on("sent",function(conn) conn:close() end)
end)I have been working on this project, and have been trying to style the HTML. I think inline styling is the only option for the conn:send. If anyone has any information on how it reads/rends let me know.
As an FYI, I came across this project on the ESP8266 forums (http://www.esp8266.com/viewtopic.php?f=19&t=990).
They fixed the double in their code with the following:
Code:
wifi.setmode(wifi.STATION)
wifi.sta.config("<SSID>","<code>")
outpin=4 -- Select right IO index !! Here is settings for GPIO2 (Lua build 20141219)
gpio.mode(outpin,gpio.OUTPUT)
gpio.write(outpin,gpio.LOW)
status = 'OFF'
function ctrlpower(kdesi,payload)
pwm.close(outpin)
gpio.mode(outpin,gpio.OUTPUT)
dotaz=string.sub(payload,kdesi[2]+1,#payload)
status = dotaz
if dotaz=="ON" then gpio.write(outpin,gpio.HIGH) return end
if dotaz=="OFF" then gpio.write(outpin,gpio.LOW) return end
if dotaz=="FLC" then pwm.setup(outpin,2,512)pwm.start(outpin) return end
pwm.setup(outpin,1000,dotaz*10)
pwm.start(outpin)
end
function sendPage(conn)
conn:send('HTTP/1.1 200 OK\n\n')
conn:send('<!DOCTYPE HTML>')
conn:send('<html>')
conn:send('<head><meta content="text/html; charset=utf-8"><style>input{width: 100px; height: 100px;}</style>')
conn:send('<title>ESP8266</title></head>')
conn:send('<body><h1>LED Controller</h1>')
conn:send('Status: <b>')
if (status == "ON") then conn:send('ON')
elseif (status == "OFF") then conn:send('OFF')
elseif (status == "FLC") then conn:send('Flickering')
else
conn:send(status)
conn:send('%')
end
conn:send('</b><br /><br />')
conn:send('<form action="/" method="POST">')
conn:send('<input type="submit" name="pwmi" value="OFF"/>')
conn:send('<input type="submit" name="pwmi" value="ON"/><br /><br />')
conn:send('<input type="submit" name="pwmi" value="10"/>')
conn:send('<input type="submit" name="pwmi" value="20"/>')
conn:send('<input type="submit" name="pwmi" value="30"/>')
conn:send('<input type="submit" name="pwmi" value="40"/>')
conn:send('<input type="submit" name="pwmi" value="50"/>')
conn:send('<input type="submit" name="pwmi" value="60"/>')
conn:send('<input type="submit" name="pwmi" value="70"/>')
conn:send('<input type="submit" name="pwmi" value="80"/>')
conn:send('<input type="submit" name="pwmi" value="90"/> % of power<br /><br />')
conn:send('<input type="submit" name="pwmi" value="FLC"/> HW blinker</form>')
conn:send('</body></html>')
end
srv=net.createServer(net.TCP)
srv:listen(80,function(conn)
conn:on("receive", function(conn,payload)
--next row is for debugging output only
--print(payload)
if (string.find(payload, "GET / HTTP/1.1") ~= nil) then
print("GET received")
sendPage(conn)
else
kdesi={string.find(payload,"pwmi=")}
--If POST value exist, set LED power
if kdesi[2]~=nil then
print("Command received: " .. payload)
ctrlpower(kdesi,payload)
sendPage(conn)
end
end
end)
conn:on("sent", function(conn)
conn:close()
print("Connection closed")
end)
end)
