102 lines
2.5 KiB
Lua
102 lines
2.5 KiB
Lua
BROKER = "172.16.2.15"
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BRPORT = 1883
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BRUSER = ""
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BRPWD = ""
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CLIENTID = "ESP8266-" .. node.chipid()
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SWITCH_PIN = 3
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SWITCH_ID = 1
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topics = {"IoT/Watchdog", "IoT/Switch" .. SWITCH_ID}
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TOPIC_WATCHDOG = 1
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TOPIC_SWITCH = 2
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pub_sem = 0
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current_topic = 1
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topicsub_delay = 50
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id2 = 0
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switch_state = false
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old_switch_state = true
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function alarm()
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node.restart()
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end
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gpio.mode(SWITCH_PIN, gpio.OUTPUT)
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gpio.write(SWITCH_PIN, gpio.LOW)
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m = mqtt.Client( CLIENTID, 120, BRUSER, BRPWD)
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tmr.alarm(4, 60000, 1, alarm)
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m:connect( BROKER , BRPORT, 0, function(conn)
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print("4")
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mqtt_sub()
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end)
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function mqtt_sub()
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if table.getn(topics) < current_topic then
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run_main_prog()
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else
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m:subscribe(topics[current_topic] , 0, function(conn)
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end)
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current_topic = current_topic + 1
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tmr.alarm(5, topicsub_delay, 0, mqtt_sub )
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end
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end
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function publish_status()
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if pub_sem == 0 then
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pub_sem = 1
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local uptime = tmr.time()
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local switch_state_pres = 0
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if (switch_state) then
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switch_state_pres = 1
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end
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local msg = "{\"metadata\":{\"device\":\"WiFiSwitch" .. SWITCH_ID .. "\"}, \"data\":{\"uptime\":" .. uptime .. ", \"state\":" .. switch_state_pres .. "}}"
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m:publish("IoT/Status/WiFiSwitch" .. SWITCH_ID, msg ,0,0, function(conn)
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print("8: " .. id2 .. ", " .. switch_state_pres)
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pub_sem = 0
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id2 = id2 +1
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end)
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end
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end
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function run_main_prog()
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tmr.alarm(3, 1000, 1, publish_status )
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m:on("message", function(conn, topic, data)
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print(topic .. ":" )
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if (data ~= nil ) then
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print ( data )
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if (topic == topics[TOPIC_SWITCH] and data == "switch on") then
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switch_state = true
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elseif (topic == topics[TOPIC_SWITCH] and data == "switch off") then
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switch_state = false
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elseif (topic == topics[TOPIC_SWITCH] and data == "switch toggle") then
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switch_state = not switch_state
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elseif (topic == topics[TOPIC_WATCHDOG] and data == "WauWau!") then
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print("9")
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tmr.alarm(4, 60000, 1, alarm)
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end
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if (switch_state ~= old_switch_state) then
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old_switch_state = switch_state
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if (switch_state) then
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gpio.write(SWITCH_PIN, gpio.LOW)
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else
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gpio.write(SWITCH_PIN, gpio.HIGH)
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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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