ESP8266 Community Forum

- Fri Nov 21, 2014 1:54 pm #3101 Hi!

one imho - if you use windows for download lua to the esp8266 - try YAT(from sf.net) it can insert delay between send string (500ms enought for me)
and second - this work for me:

Code: Select alls=net.createServer(net.TCP)
 s:listen(80,function(c)
 c:on("receive",function(c,pl)
  for v,i in pairs{2,8,9} do
   gpio.mode(i,gpio.OUTPUT)
   c:send("\ngpio("..i.."):"..gpio.read(i))
   if string.find(pl,"gpio"..i.."=0") then gpio.write(i,0) end
   if string.find(pl,"gpio"..i.."=1") then gpio.write(i,1) end
   c:send("\nnew_gpio("..i.."):"..gpio.read(i))
  end
  c:send("\nTMR:"..tmr.now().." MEM:"..node.heap())
 c:on("sent",function(c) c:close() end)
 end)
end)


with this you can post GET query like this:

http://192.168.x.x/gpio8=1
or
http://192.168.x.x/gpio2=1&gpio8=0
or
http://192.168.x.x/gpio9=1&gpio2=1
or
http://192.168.x.x/gpio9=1&gpio2=1&gpio8=1

- Sat Nov 22, 2014 3:08 am #3114 How much we have program memory for lua files ?

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Lets get the party started and +1

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I like ESP8266 and ESP8285 and ESP32

- Sat Nov 22, 2014 8:19 am #3126

How much we have program memory for lua files ?

150k byte flash for file
21k ram to run it.

- Sat Nov 22, 2014 8:23 am #3127

Code: Select allled = 8
i = 0
gpio.mode(led, gpio.OUTPUT)
function blink()
   print(i)
   if i % 2 == 0 then
      gpio.write(led, gpio.HIGH)
   else
      gpio.write(led, gpio.LOW)
   end
   i=i+1
   if i == 10 then
      print("done")
      tmr.stop()
   end
end

tmr.alarm(1000, 1, blink) -- Let it blink


Hello,

There are only 21.5 KBytes of RAM and it is very difficult to write a longer program.
This tiny bit of LUA code consumes about 8 KBytes of RAM. Why?

Hans

There is a LUA virtual machine in it. RAM consuming, a bad "feature".