my server.lua

-- This module implements a simple web-server to allow configuration changes via Wi-Fi.
-- Please be careful! Since it's just an example of working with ESP module, it has no access control at all (to keep things simple).

local atmega = require "atmega"

sv = net.createServer(net.TCP, 30)

local function close_connection(c)
    c:close()
end

function receiver(sck, data)
  print(data)
  sck:close()
end


if sv then
    sv:listen(5000, function(conn)
        conn:on("receive", receiver)
        local stuff = atmega.getMessage()
        if stuff == nil then
            stuff = "fail"
        end
        local test = "test 1 " .. stuff
        conn:send(test, close_connection)
    end)
end