- Thu Nov 26, 2015 10:40 am
#35067
Hello,
I am working on expanding the web server functionality that was provided on a prior thread (viewtopic.php?f=19&t=990&start=0). What I am wondering is how to increase the number of LEDs that can be controlled by the website. Can someone lend a suggestion or approach?
My idea is to add an id="led#" to the current submit buttons, so...:
Then figure a way to parse it in the following:
Is this over complicated it? The idea is to create this web server so that other users (including me) would be able to scale the number of LEDs from one to a large number serving all needs. I think that this could go a long way allowing everyday users to just stand up the ESP8266 LUA and go.
Alternatively, I have noticed the conn:send command tends to be very slow to the buf = buf.. If someone would alternativly use that command let me know (http://randomnerdtutorials.com/esp8266-web-server/).
Here is the full code as it stands without my modifications to the HTML or logic around it.
I am working on expanding the web server functionality that was provided on a prior thread (viewtopic.php?f=19&t=990&start=0). What I am wondering is how to increase the number of LEDs that can be controlled by the website. Can someone lend a suggestion or approach?
My idea is to add an id="led#" to the current submit buttons, so...:
Code: Select all
conn:send('<input type="submit" name="pwmi" value="10" id="led5"/>')Then figure a way to parse it in the following:
Code: Select all
submittedValue={string.find(payload,"pwmi=")}
--If POST value exist, set LED power
if submittedValue[2]~=nil then
print("Command received: " .. payload)
ctrlpower(kdesi,payload)
sendPage(conn)Is this over complicated it? The idea is to create this web server so that other users (including me) would be able to scale the number of LEDs from one to a large number serving all needs. I think that this could go a long way allowing everyday users to just stand up the ESP8266 LUA and go.
Alternatively, I have noticed the conn:send command tends to be very slow to the buf = buf.. If someone would alternativly use that command let me know (http://randomnerdtutorials.com/esp8266-web-server/).
Here is the full code as it stands without my modifications to the HTML or logic around it.
Code: Select all
--init.lua
-- Code sample from https://www.domoticz.com/wiki/ESP8266_WiFi_module
-- Only supports WPA2 by any 802.11g or better device
wifi.sta.config("YOUR SSID","YOUR KEY")
wifi.sta.connect()
tmr.alarm(1, 1000, 1, function()
if wifi.sta.getip()== nil then
print("IP unavaiable, Waiting...")
else
tmr.stop(1)
print("ESP8266 mode is: " .. wifi.getmode())
print("The module MAC address is: " .. wifi.ap.getmac())
print("Config done, IP is "..wifi.sta.getip())
end
end)
-- Select right IO index !! Here is settings for GPIO2 (Lua build 20141219)
outpinOne=4
outpinTwo=0
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)
