70 lines
2.3 KiB
Lua
70 lines
2.3 KiB
Lua
|
dofile("credentials.lua") -- WiFi credentials
|
||
|
|
|
||
|
|
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 'server.lua'
|
||
|
|
dofile("server.lua")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
-- Define WiFi station event callbacks
|
||
|
|
wifi_connect_event = function(T)
|
||
|
|
print("Connection to AP("..T.SSID..") established!")
|
||
|
|
print("Waiting for IP address...")
|
||
|
|
if disconnect_ct ~= nil then disconnect_ct = nil end
|
||
|
|
end
|
||
|
|
|
||
|
|
wifi_got_ip_event = function(T)
|
||
|
|
-- Note: Having an IP address does not mean there is internet access!
|
||
|
|
-- Internet connectivity can be determined with net.dns.resolve().
|
||
|
|
print("Wifi connection is ready! IP address is: "..T.IP)
|
||
|
|
print("Startup will resume momentarily, you have 3 seconds to abort.")
|
||
|
|
print("Waiting...")
|
||
|
|
tmr.create():alarm(3000, tmr.ALARM_SINGLE, startup)
|
||
|
|
end
|
||
|
|
|
||
|
|
wifi_disconnect_event = function(T)
|
||
|
|
if T.reason == wifi.eventmon.reason.ASSOC_LEAVE then
|
||
|
|
--the station has disassociated from a previously connected AP
|
||
|
|
return
|
||
|
|
end
|
||
|
|
-- total_tries: how many times the station will attempt to connect to the AP. Should consider AP reboot duration.
|
||
|
|
local total_tries = 75
|
||
|
|
print("\nWiFi connection to AP("..T.SSID..") has failed!")
|
||
|
|
|
||
|
|
--There are many possible disconnect reasons, the following iterates through
|
||
|
|
--the list and returns the string corresponding to the disconnect reason.
|
||
|
|
for key,val in pairs(wifi.eventmon.reason) do
|
||
|
|
if val == T.reason then
|
||
|
|
print("Disconnect reason: "..val.."("..key..")")
|
||
|
|
break
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
if disconnect_ct == nil then
|
||
|
|
disconnect_ct = 1
|
||
|
|
else
|
||
|
|
disconnect_ct = disconnect_ct + 1
|
||
|
|
end
|
||
|
|
if disconnect_ct < total_tries then
|
||
|
|
print("Retrying connection...(attempt "..(disconnect_ct+1).." of "..total_tries..")")
|
||
|
|
else
|
||
|
|
wifi.sta.disconnect()
|
||
|
|
print("Aborting connection to AP!")
|
||
|
|
disconnect_ct = nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
-- Register WiFi Station event callbacks
|
||
|
|
wifi.eventmon.register(wifi.eventmon.STA_CONNECTED, wifi_connect_event)
|
||
|
|
wifi.eventmon.register(wifi.eventmon.STA_GOT_IP, wifi_got_ip_event)
|
||
|
|
wifi.eventmon.register(wifi.eventmon.STA_DISCONNECTED, wifi_disconnect_event)
|
||
|
|
|
||
|
|
print("Connecting to WiFi access point...")
|
||
|
|
wifi.setmode(wifi.STATION)
|
||
|
|
wifi.sta.config({ssid=SSID, pwd=WIFIPASSWD})
|