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-rw-r--r--init.lua33
1 files changed, 22 insertions, 11 deletions
diff --git a/init.lua b/init.lua
index a6335fc..f5b19ee 100644
--- a/init.lua
+++ b/init.lua
@@ -7,7 +7,6 @@ device_id = "esp8266_" .. chip_id
mqtt_prefix = "sensor/" .. device_id
mqttclient = mqtt.Client(device_id, 120)
-
print("ESP8266 " .. chip_id)
ledpin = 4
@@ -16,6 +15,8 @@ gpio.write(ledpin, 0)
pm1006 = require("pm1006")
+pm_values = {}
+
function log_restart()
print("Network error " .. wifi.sta.status() .. ". Restarting in 20 seconds.")
delayed_restart:start()
@@ -58,22 +59,32 @@ function uart_callback(data)
print("Invalid PM1006 frame")
return
else
- local json_str = string.format('{"pm2_5_ugm3": %d, "rssi_dbm": %d}', pm2_5, wifi.sta.getrssi())
- if not publishing then
- publishing = true
- gpio.write(ledpin, 0)
- mqttclient:publish(mqtt_prefix .. "/data", json_str, 0, 0, function(client)
- publishing = false
- gpio.write(ledpin, 1)
- collectgarbage()
- end)
+ table.insert(pm_values, pm2_5)
+ if table.getn(pm_values) == 10 then
+ local pm_sum = 0
+ for i, pm_value in ipairs(pm_values) do
+ pm_sum = pm_sum + pm_value
+ end
+ local pm_int = pm_sum / 10
+ local pm_frac = pm_sum % 10
+ local json_str = string.format('{"pm2_5_ugm3": %d.%d, "rssi_dbm": %d}', pm_int, pm_frac, wifi.sta.getrssi())
+ pm_values = {}
+ if not publishing then
+ publishing = true
+ gpio.write(ledpin, 0)
+ mqttclient:publish(mqtt_prefix .. "/data", json_str, 0, 0, function(client)
+ publishing = false
+ gpio.write(ledpin, 1)
+ collectgarbage()
+ end)
+ end
end
end
end
function hass_register()
local hass_device = string.format('{"connections":[["mac","%s"]],"identifiers":["%s"],"model":"ESP8266 + PM1006","name":"Vindriktning %s","manufacturer":"derf"}', wifi.sta.getmac(), device_id, chip_id)
- local hass_entity_base = string.format('"device":%s,"state_topic":"%s/data","expire_after":60', hass_device, mqtt_prefix)
+ local hass_entity_base = string.format('"device":%s,"state_topic":"%s/data","expire_after":90', hass_device, mqtt_prefix)
local hass_pm2_5 = string.format('{%s,"name":"PM2.5","object_id":"%s_pm2_5","unique_id":"%s_pm2_5","device_class":"pm25","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","device_class":"signal_strength","unit_of_measurement":"dBm","value_template":"{{value_json.rssi_dbm}}","entity_category":"diagnostic"}', hass_entity_base, device_id, device_id)