88 lines
2.2 KiB
Lua
88 lines
2.2 KiB
Lua
-- vim: set sw=4 ts=4 sts=4 et :
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WIFI_TIMER_ID = 1
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function gpiosetup()
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local k, v
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if (config.buttons ~= nil) then
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for pin, payload in pairs(config.buttons) do
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gpio.mode(pin, gpio.INT)
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gpio.trig(pin, "down", function(level)
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if (gpio.read(pin) == gpio.LOW) then
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on_button_press(pin, payload)
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end
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end)
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end
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end
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end
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function mqttsetup()
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if (mqtt_client == nil) then
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mqtt_client = mqtt.Client(
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config.mqtt.clientid,
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config.mqtt.keepalive,
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config.mqtt.user,
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config.mqtt.pwd
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)
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mqtt_client:on("connect", on_mqtt_connected)
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mqtt_client:on("offline", on_mqtt_disconnected)
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end
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mqtt_client:connect(config.mqtt.host)
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end
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function on_button_press(pin, payload)
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print("Button pressed: " .. pin)
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if (mqtt_client ~= nil) then
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mqtt_client:publish(config.mqtt.topic, payload, 0, 0)
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end
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end
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function on_mqtt_connected(client)
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print("MQTT Connected")
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end
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function on_mqtt_disconnected(client)
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print("MQTT Disconnected")
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mqtt_client:close()
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tmr.alarm(WIFI_TIMER_ID, 1000, 0, on_wifi_timer)
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end
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function on_wifi_connected()
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mqttsetup()
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end
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function on_wifi_timer()
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local status = wifi.sta.status()
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if (status == 0) then -- Idle
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wifi.sta.connect()
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tmr.alarm(WIFI_TIMER_ID, 250, 0, on_wifi_timer)
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elseif (status == 1) then -- Connecting
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tmr.alarm(WIFI_TIMER_ID, 250, 0, on_wifi_timer)
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elseif (status == 5) then -- Connected
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local ip = wifi.sta.getip()
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if (ip ~= nil) then
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print("WiFi Connected: " .. wifi.sta.getip())
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on_wifi_connected()
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else
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tmr.alarm(WIFI_TIMER_ID, 250, 0, on_wifi_timer)
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end
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else -- Error
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print("WiFi Connection Error: " .. status)
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tmr.alarm(WIFI_TIMER_ID, 1000, 0, on_wifi_timer)
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end
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end
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function mqttbutton_main()
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wifisetup()
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gpiosetup()
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end
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function wifisetup()
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if (wifi.getmode() ~= wifi.STATION) then
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wifi.setmode(wifi.STATION)
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end
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wifi.sta.config(config.wifi.ssid, config.wifi.pwd)
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tmr.alarm(WIFI_TIMER_ID, 250, 0, on_wifi_timer)
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end
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