Lua ESP8266 convenience libraries

ntp.lua

ntpOnSuccess = function () end

function ntpStart(onSuccess, onError)
	ntpOnSuccess = onSuccess

	sntp.sync(
		nil,
		function(sec, usec, server, info)
			print("SNTP SYNCED")
			rtctime.set(sec, usec)

			-- Call user callback on first sync, then disable
			ntpOnSuccess(sec, usec, server, info)
			ntpOnSuccess = function() end
		end,
		function()
		    onError("SNTP FAILED")
		end,
		1 -- autosync true
	)
end

wifi.lua

function wifiConfig(cfg)
	wifi.setmode(wifi.STATION)
	wifi.sta.config(cfg)
	wifi.sta.autoconnect(1)
end

globalOnSuccess = nil
globalOnError = nil

function wifiConnect(onSuccess, onError)
	wifi.sta.connect()

	globalOnError = onError
	globalOnSuccess = onSuccess

	tmr.create():alarm(250, tmr.ALARM_SINGLE, wifiCheck)
end

function wifiCheck() 
	onError = globalOnError
	onSuccess = globalOnSuccess
	
	if wifi.sta.status() == wifi.STA_FAIL then
		onError("STAFAIL")
	elseif wifi.sta.status() == wifi.STA_APNOTFOUND then
		onError("APNOTFOUND")
	elseif wifi.sta.status() == wifi.STA_WRONGPWD then
		onError("WRONGPWD")
	else
		local ip = wifi.sta.getip()
		if ip then
			onSuccess(ip)
		else
			tmr.create():alarm(250, tmr.ALARM_SINGLE, wifiCheck)
		end
	end
end

function wifiDisconnect(onSuccess, onError)
  -- TODO
end