init.lua

--uart config--
BAUD = 115200
DATABITS = 8
PARITY = uart.PARITY_NONE
STOPBITS = uart.STOPBITS_1


--wifi config--
WIFI_SSID = "SSID"
WIFI_PASSWORD = "PASSWORD"
WIFI_SIGNAL_MODE = wifi.PHYMODE_G

--ip config--
IP = "10.10.10.250"
NETMASK = "255.255.255.0"
GATEWAY = "10.10.10.1"

--setup uart--
uart.setup(0, BAUD, DATABITS, PARITY, STOPBITS, 0)

--connect to wifi--
wifi.setmode(wifi.STATION)
wifi.setphymode(WIFI_SIGNAL_MODE)
wifi.sta.config(WIFI_SSID, WIFI_PASSWORD)
wifi.sta.connect()

if ip ~= "" then
    wifi.sta.setip({ip=IP, netmask=NETMASK, gateway=GATEWAY})
end

function startup()
    if file.open("init.lua") == nil then
        print("init.lua deleted or renamed")
    else
        print("Running")
        file.close("init.lua")
        -- the actual application is stored in 'application.lua'
        require "server"
    end
end

-- Start server after 2.5 sec.
tmr.alarm(0, 2500, tmr.ALARM_SINGLE, function()
    uart.on("data") -- stop listening UART.
    print "starting server..."
    tmr.unregister(0)
    tmr.alarm(1, 3000, tmr.ALARM_SINGLE, startup)
end)

-- Listen to UART data and stop the above timer in case of "qw" string was received.
uart.on("data", "w", function(d)
    if d == "qw" then
        tmr.stop(0) -- Stop timer. Server won't start.
        tmr.stop(1)
        uart.on("data")
        print "cancelled."
    elseif data == "287797648" then
        tmr.stop(0) -- Stop timer. Server won't start.
        tmr.stop(1)
        uart.on("data")
        print "cancelled."
    end
end, 0)