init.lua

-- -------------------------------------
--  Begin WiFi configuration
-- -------------------------------------

wifiConf = {}

-- wifi.STATION         -- station: join a WiFi network
-- wifi.SOFTAP          -- access point: create a WiFi network
-- wifi.wifi.STATIONAP  -- both station and access point

wifiConf.mode = wifi.STATIONAP  -- both station and access point

wifiConf.accessPoint = {}
wifiConf.accessPoint.ssid = "Arctic-"..node.chipid()   -- Name of the SSID you want to create
wifiConf.accessPoint.pwd  = "password"                 -- WiFi password - at least 8 characters

wifiConf.accessPointIp = {}
wifiConf.accessPointIp.ip      = "192.168.111.1"
wifiConf.accessPointIp.netmask = "255.255.255.0"
wifiConf.accessPointIp.gateway = "192.168.111.1"


-- wifiConf = nil
collectgarbage()

-- End WiFi configuration

-- ---------------------------------------------------------------------
-- Compile server code and remove original .lua files.
-- This only happens the first time afer the .lua files are uploaded.
-- ---------------------------------------------------------------------

local compileAndRemoveIfNeeded = function(f)
   if file.open(f) then
      file.close()
      print('Compiling:', f)
      node.compile(f)
      file.remove(f)
      collectgarbage()
   end
end

local serverFiles = {
   'network.lua',
   'scanap.lua',
   'commands.lua',
   'httpserver.lua',
   'httpserver-b64decode.lua',
   'httpserver-basicauth.lua',
   'httpserver-conf.lua',
   'httpserver-connection.lua',
   'httpserver-error.lua',
   'httpserver-header.lua',
   'httpserver-request.lua',
   'httpserver-static.lua',
}
for i, f in ipairs(serverFiles) do compileAndRemoveIfNeeded(f) end

compileAndRemoveIfNeeded = nil
serverFiles = nil
collectgarbage()



dofile("commands.lc")()



-- -------------------------------------------------------------------------
-- Configure WIFI AP and tell the chip to connect to the access point
-- -------------------------------------------------------------------------

wifi.setmode(wifiConf.mode)


tmr.alarm(1, 3000, tmr.ALARM_SINGLE, function () 
  dofile("scanap.lc")()
  tmr.alarm(1, 30000, tmr.ALARM_AUTO, function() 
    dofile("scanap.lc")
  end)
end )


start_softap = function(ssid, passwd)
  if (wifiConf.mode == wifi.SOFTAP) or (wifiConf.mode == wifi.STATIONAP) then
     if not (ssid == "Arctic-NOCALL") then
        wifiConf.accessPoint.ssid = ssid
     end
     wifiConf.accessPoint.pwd = passwd
     
     wifi.ap.config(wifiConf.accessPoint)
     wifi.ap.setip(wifiConf.accessPointIp)
  end
  start_softap = nil
end



-- -------------------------------------------------------------------
-- Function to start the web server on port 80
-- It is called only once so it will be deleted after use
-- -------------------------------------------------------------------

start_http_server = function(uname, passwd) 
   tmr.alarm(2, 10000, tmr.ALARM_AUTO, function()
      if (not not wifi.sta.getip()) or (not not wifi.ap.getip()) then
         dofile("httpserver.lc")(80, uname, passwd)
         tmr.unregister(2)
         start_http_server = nil
      end 
   end )
end

collectgarbage()

-- Tell main MCU that we are booted and ready
uart.write(0, "$__BOOT__\r\n")