Unverified Commit 848146b7 authored by Birte Kristina Friesel's avatar Birte Kristina Friesel
Browse files

add homeassistant integration

parent a07247be

init.lua

+21 −5
Original line number Diff line number Diff line
@@ -2,11 +2,13 @@ station_cfg = {} 
dofile("config.lua")



delayed_restart = tmr.create()

chipid = node.chipid()

mqtt_prefix = "sensor/esp8266_" .. chipid

mqttclient = mqtt.Client("esp8266_" .. chipid, 120)

chip_id = node.chipid()

device_id = "esp8266_" .. chip_id

mqtt_prefix = "sensor/" .. device_id

mqttclient = mqtt.Client(device_id, 120)



print("ESP8266 " .. chipid)



print("ESP8266 " .. chip_id)



ledpin = 4

gpio.mode(ledpin, gpio.OUTPUT)
@@ -34,7 +36,7 @@ function connect_mqtt() 
	print("IP address: " .. wifi.sta.getip())

	print("Connecting to MQTT " .. mqtt_host)

	delayed_restart:stop()

	mqttclient:on("connect", setup_client)

	mqttclient:on("connect", hass_register)

	mqttclient:on("offline", log_restart)

	mqttclient:lwt(mqtt_prefix .. "/state", "offline", 0, 1)

	mqttclient:connect(mqtt_host)
@@ -70,6 +72,20 @@ function uart_callback(data) 
	end

end



function hass_register()

	local hass_device = string.format('{"connections":[["mac","%s"]],"identifiers":["%s"],"model":"ESP8266","name":"ESP8266 PM1006","manufacturer":"DIY"}', wifi.sta.getmac(), device_id)

	local hass_entity_base = string.format('"device":%s,"state_topic":"%s/data","expire_after":600', hass_device, mqtt_prefix)

	local hass_pm2_5 = string.format('{%s,"name":"PM2.5","object_id":"%s_pm2_5","unique_id":"%s_pm2_5","icon":"mdi:air-filter","unit_of_measurement":"µg/m³","value_template":"{{value_json.pm2_5_ugm3}}"}', hass_entity_base, device_id, device_id)

	local hass_rssi = string.format('{%s,"name":"RSSI","object_id":"%s_rssi","unique_id":"%s_rssi","icon":"mdi:wifi","unit_of_measurement":"dBm","value_template":"{{value_json.rssi_dbm}}","entity_category":"diagnostic"}', hass_entity_base, device_id, device_id)



	mqttclient:publish("homeassistant/sensor/" .. device_id .. "/pm2_5/config", hass_pm2_5, 0, 1, function(client)

		mqttclient:publish("homeassistant/sensor/" .. device_id .. "/rssi/config", hass_rssi, 0, 1, function(client)

			collectgarbage()

			setup_client()

		end)

	end)

end



delayed_restart:register(20 * 1000, tmr.ALARM_SINGLE, node.restart)



connect_wifi()