Netatmo Binding

The Netatmo binding integrates the Netatmo Personal Weather Station into openHAB. Its different modules allow you to measure temperature, humidity, air pressure, carbon dioxide concentration in the air, as well as the ambient noise level.

See http://www.netatmo.com/ for details on their product.

Configuration

Pre setup

• Create an application at http://dev.netatmo.com/dev/createapp

• Retrieve a refresh token from Netatmo API, using e.g. curl:

curl -d "grant_type=password&client_id=123456789012345678901234&client_secret=ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHI&[email protected]&password=example" "https://api.netatmo.net/oauth2/token"

• Add client id, client secret and refresh token to openhab.cfg

netatmo:refresh=300000
netatmo:clientid=123456789012345678901234
netatmo:clientsecret=ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHI
netatmo:refreshtoken=ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDE

Measurement Units

Starting with 1.8, you can optionally set the unit system and/or pressure units. The unit systems options are either Metric (Celsius/meters/millimeters) or US (Fahrenheit/feet/inches) and is case insensitive. The temperature (Celsius or Fahrenheit), rain (millimeter or inches) and altitude (meters or feet) are affected by this parameter. If not specified, openHAB defaults to Metric.

netatmo:unitsystem=m
netatmo:unitsystem=us

The pressure unit is either mbar, inHg, or mmHg and is used for pressure, and is case insenstive. If not specified, openHAB defaults to mbar.

netatmo:pressureunit=mbar
netatmo:pressureunit=inHg
netatmo:pressureunit=mmHg

Prior to 1.8, openHAB returns values in Metric and mbar.

Configure items and rules

The IDs for the modules can be extracted from the developer documentation on the netatmo site. First login with your user. Then some examples of the documentation contain the real results of your weather station. Get the IDs of your devices (indoor, outdoor, rain gauge) here:

https://dev.netatmo.com/doc/methods/devicelist

main_device is the ID of the "main device", the indoor sensor.

The other modules you can recognize by "module_name" and then note the "_id" which you need later.

Another way to get the IDs is to calculate them:

You have to calculate the ID for the outside module as follows: (it cannot be read from the app) if the first serial character is "h": start with "02", if the first serial character is "i": start with "03",

append ":00:00:",

split the rest into three parts of two characters and append with a colon as delimeter.

For example your serial number "h00bcdc" should end up as "02:00:00:00:bc:dc".

Indoor

Example item for the indoor module:

Number Netatmo_Indoor_CO2 "Carbon dioxide [%d ppm]" {netatmo="00:00:00:00:00:00#Co2"}

Supported types for the indoor module:

• Temperature
• Humidity
• Co2
• Pressure
• Noise
• WifiStatus
• Altitude
• Latitude
• Longitude
• TimeStamp
• min_temp
• date_min_temp
• max_temp
• date_max_temp
• min_hum
• date_min_hum
• max_hum
• date_max_hum
• min_pressure
• date_min_pressure
• max_pressure
• date_max_pressure
• min_noise
• date_min_noise
• max_noise
• date_max_noise
• min_co2
• date_min_co2
• max_co2
• date_max_co2

Outdoor

Example item for the outdoor module (first id is the main module, second id is the outdoor module):

Number Netatmo_Outdoor_Temperature "Outdoor temperature [%.1f °C]" {netatmo="00:00:00:00:00:00#00:00:00:00:00:00#Temperature"}

Supported types for the outdoor module:

• Temperature
• Humidity
• RfStatus
• BatteryVP
• TimeStamp
• min_temp
• date_min_temp
• max_temp
• date_max_temp
• min_hum
• date_min_hum
• max_hum
• date_max_hum

Rain

Example item for the rain gauge (first id is the main module, second id is the rain module):

Number Netatmo_Rain_Current "Rain [%.1f mm]" {netatmo="00:00:00:00:00:00#00:00:00:00:00:00#Rain"}

Supported types for the rain guage:

• Rain
• Humidity
• RfStatus
• sum_rain

###Min, Max and Sum Types Types that contain _min, _max, or _sum are for a specific time frame, with a default of 1 day. Possible time frames are:

• 30min
• 1hour
• 3hours
• 1day
• 1week
• 1month

The types that contain _date will only work with the ranges 1day, 1week, and 1month.

Example items with different time frames:

Number   Netatmo_Indoor_Max_Temp_Today       "Indoor Maximum Temperature Today [%.2f C]"      (Netatmo)  {netatmo="00:00:00:00:00:00#max_temp"}
Number   Netatmo_Indoor_Max_Temp_This_Week   "Indoor Maximum Temperature This Week [%.2f C]"  (Netatmo)  {netatmo="00:00:00:00:00:00#max_temp,1week"}
Number   Netatmo_Indoor_Max_Temp_This_Month  "Indoor Maximum Temperature This Month [%.2f C]" (Netatmo)  {netatmo="00:00:00:00:00:00#max_temp,1month"}
Number   Netatmo_Rain_Today                  "Rain Today [%.02f mm]"                          (Netatmo)  {netatmo="00:00:00:00:00:00#05:00:00:00:00:be#sum_rain"}
Number   Netatmo_Rain_Week                   "Rain This Week [%.02f mm]"                      (Netatmo)  {netatmo="00:00:00:00:00:00#05:00:00:00:00:be#sum_rain,1week""}
Number   Netatmo_Rain_Month                  "Rain This Month [%.02f mm]"                     (Netatmo)  {netatmo="00:00:00:00:00:00#05:00:00:00:00:be#sum_rain,1month""}

Example items

Example item configration:

Number   Netatmo_Indoor_Temperature    "Indoor Temperature [%.2f C]"                       (Netatmo)  {netatmo="00:00:00:00:00:00#Temperature"}
Number   Netatmo_Indoor_Humidity       "Indoor Humidity [%d %%]"                           (Netatmo)  {netatmo="00:00:00:00:00:00#Humidity"}
Number   Netatmo_Indoor_CO2            "Indoor Carbon dioxide [%d ppm]"                    (Netatmo)  {netatmo="00:00:00:00:00:00#Co2"}
Number   Netatmo_Indoor_Pressure       "Indoor Pressure [%.2f mbar]"                       (Netatmo)  {netatmo="00:00:00:00:00:00#Pressure"}
Number   Netatmo_Indoor_Noise          "Indoor Noise [%d db]"                              (Netatmo)  {netatmo="00:00:00:00:00:00#Noise"}
Number   Netatmo_Indoor_wifi           "Indoor Wifi status [%d / 4]"                       (Netatmo)  {netatmo="00:00:00:00:00:00#Wifistatus"}
Number   Netatmo_Indoor_altitude       "Indoor Altitude [%f]"                              (Netatmo)  {netatmo="00:00:00:00:00:00#Altitude"}
Number   Netatmo_Indoor_latitude       "Indoor Latitude [%.6f]"                            (Netatmo)  {netatmo="00:00:00:00:00:00#Latitude"}
Number   Netatmo_Indoor_longitude      "Indoor Longitude [%.6f]"                           (Netatmo)  {netatmo="00:00:00:00:00:00#Longitude"}
Number   Netatmo_Indoor_Min_Temp       "Indoor Mininum Temperature Today [%.2f C]"         (Netatmo)  {netatmo="00:00:00:00:00:00#min_temp"}
DateTime Netatmo_Indoor_Min_Temp_Date  "Indoor Mininum Temperature Today [%1$tD %1$tr]"    (Netatmo)  {netatmo="00:00:00:00:00:00#date_min_temp"}
Number   Netatmo_Indoor_Max_Temp       "Indoor Maximum Temperature Today [%.2f C]"         (Netatmo)  {netatmo="00:00:00:00:00:00#max_temp"}
DateTime Netatmo_Indoor_Max_Temp_Date  "Indoor Maximum Temperature Today [%1$tD %1$tr]"    (Netatmo)  {netatmo="00:00:00:00:00:00#date_max_temp"}
Number   Netatmo_Indoor_Min_Hum        "Indoor Mininum Humidity Today [%d %%]"             (Netatmo)  {netatmo="00:00:00:00:00:00#min_hum"}
DateTime Netatmo_Indoor_Min_Hum_Date   "Indoor Mininum Humidity Today [%1$tD %1$tr]"       (Netatmo)  {netatmo="00:00:00:00:00:00#date_min_hum"}
Number   Netatmo_Indoor_Max_Hum        "Indoor Maximum Humidity Today [%d %%]"             (Netatmo)  {netatmo="00:00:00:00:00:00#max_hum"}
DateTime Netatmo_Indoor_Max_Hum_Date   "Indoor Maximum Humidity Today [%1$tD %1$tr]"       (Netatmo)  {netatmo="00:00:00:00:00:00#date_max_hum"}
Number   Netatmo_Indoor_Min_Press      "Indoor Mininum Pressure Today [%.2f mbar]"         (Netatmo)  {netatmo="00:00:00:00:00:00#min_pressure"}
DateTime Netatmo_Indoor_Min_Temp_Press "Indoor Mininum Pressure Today [%1$tD %1$tr]"       (Netatmo)  {netatmo="00:00:00:00:00:00#date_min_pressure"}
Number   Netatmo_Indoor_Max_Press      "Indoor Maxinum Pressure Today [%.2f mbar]"         (Netatmo)  {netatmo="00:00:00:00:00:00#max_pressure"}
DateTime Netatmo_Indoor_Max_Temp_Press "Indoor Maxinum Pressure Today [%1$tD %1$tr]"       (Netatmo)  {netatmo="00:00:00:00:00:00#date_max_pressure"}
Number   Netatmo_Indoor_Min_Noise      "Indoor Mininum Noise Today [%d db]"                (Netatmo)  {netatmo="00:00:00:00:00:00#min_noise"}
DateTime Netatmo_Indoor_Min_Noise_Date "Indoor Mininum Noise Today [%1$tD %1$tr]"          (Netatmo)  {netatmo="00:00:00:00:00:00#date_min_noise"}
Number   Netatmo_Indoor_Max_Noise      "Indoor Maxinum Noise Today [%d db]"                (Netatmo)  {netatmo="00:00:00:00:00:00#max_noise"}
DateTime Netatmo_Indoor_Max_Noise_Date "Indoor Maxinum Noise Today [%1$tD %1$tr]"          (Netatmo)  {netatmo="00:00:00:00:00:00#date_max_noise"}
Number   Netatmo_Indoor_Min_CO2        "Indoor Mininum Carbon Dioxide Today [%d ppm]"      (Netatmo)  {netatmo="00:00:00:00:00:00#min_co2"}
DateTime Netatmo_Indoor_Min_CO2_Date   "Indoor Mininum Carbon Dioxide Today [%1$tD %1$tr]" (Netatmo)  {netatmo="00:00:00:00:00:00#date_min_co2"}
Number   Netatmo_Indoor_Max_CO2        "Indoor Maxinum Carbon Dioxide Today [%d ppm]"      (Netatmo)  {netatmo="00:00:00:00:00:00#max_co2"}
DateTime Netatmo_Indoor_Max_CO2_Date   "Indoor Maxinum Carbon Dioxide Today [%1$tD %1$tr]" (Netatmo)  {netatmo="00:00:00:00:00:00#date_max_co2"}

Number   Netatmo_Outdoor_Temperature   "Outdoor Temperature [%.2f °C]"                     (Netatmo)  {netatmo="00:00:00:00:00:00#02:00:00:00:00:00#Temperature"}
Number   Netatmo_Outdoor_Humidity      "Outdoor Humidity [%.2f %%]"                        (Netatmo)  {netatmo="00:00:00:00:00:00#02:00:00:00:00:00#Humidity"}
Number   Netatmo_Outdoor_Rfstatus      "Outdoor RF status [%d / 5]"                        (Netatmo)  {netatmo="00:00:00:00:00:00#02:00:00:00:00:00#Rfstatus"}
Number   Netatmo_Outdoor_Batteryvp     "Outdoor battery status [%d %%]"                    (Netatmo)  {netatmo="00:00:00:00:00:00#02:00:00:00:00:00#Batteryvp"}
Number   Netatmo_Outdoor_Min_Temp      "Outdoor Mininum Temperature Today [%.2f C]"        (Netatmo)  {netatmo="00:00:00:00:00:00#02:00:00:00:00:00#min_temp"}
DateTime Netatmo_Outdoor_Min_Temp_Date "Outdoor Mininum Temperature Today [%1$tD %1$tr]"   (Netatmo)  {netatmo="00:00:00:00:00:00#02:00:00:00:00:00#date_min_temp"}
Number   Netatmo_Outdoor_Max_Temp      "Outdoor Maximum Temperature Today [%.2f C]"        (Netatmo)  {netatmo="00:00:00:00:00:00#02:00:00:00:00:00#max_temp"}
DateTime Netatmo_Outdoor_Max_Temp_Date "Outdoor Maximum Temperature Today [%1$tD %1$tr]"   (Netatmo)  {netatmo="00:00:00:00:00:00#02:00:00:00:00:00#date_max_temp"}
Number   Netatmo_Outdoor_Min_Hum       "Outdoor Mininum Humidity Today [%d %%]"            (Netatmo)  {netatmo="00:00:00:00:00:00#02:00:00:00:00:00#min_hum"}
DateTime Netatmo_Outdoor_Min_Hum_Date  "Outdoor Mininum Humidity Today [%1$tD %1$tr]"      (Netatmo)  {netatmo="00:00:00:00:00:00#02:00:00:00:00:00#date_min_hum"}
Number   Netatmo_Outdoor_Max_Hum       "Outdoor Maximum Humidity Today [%d %%]"            (Netatmo)  {netatmo="00:00:00:00:00:00#02:00:00:00:00:00#max_hum"}
DateTime Netatmo_Outdoor_Max_Hum_Date  "Outdoor Maximum Humidity Today [%1$tD %1$tr]"      (Netatmo)  {netatmo="00:00:00:00:00:00#02:00:00:00:00:00#date_max_hum"}

Number   Netatmo_Rain_Current          "Rain Current [%.02f mm]"                           (Netatmo)  {netatmo="00:00:00:00:00:00#05:00:00:00:00:be#Rain"}
Number   Netatmo_Rain_Rfstatus         "Rain RF Status [%d / 5]"                           (Netatmo)  {netatmo="00:00:00:00:00:00#05:00:00:00:00:be#Rfstatus"}
Number   Netatmo_Rain_Batteryvp        "Rain battery status [%d %%]"                       (Netatmo)  {netatmo="00:00:00:00:00:00#05:00:00:00:00:be#Batteryvp"}
Number   Netatmo_Rain_Today            "Rain Today [%.02f mm]"                             (Netatmo)  {netatmo="00:00:00:00:00:00#05:00:00:00:00:be#sum_rain"}

Example rules

Example rule to send a mail if carbon dioxide reaches a certain threshold:

var boolean co2HighWarning = false
var boolean co2VeryHighWarning = false

rule "Monitor carbon dioxide level"
	when
		Item Netatmo_Indoor_CO2 changed
	then
		if(Netatmo_Indoor_CO2.state > 1000) {
			if(co2HighWarning == false) {
				sendMail("[email protected]",
				         "High carbon dioxide level!",
				         "Carbon dioxide level is " + Netatmo_Indoor_CO2.state + " ppm.")
				co2HighWarning = true
			}
		} else if(Netatmo_Indoor_CO2.state > 2000) {
			if(co2VeryHighWarning == false) {
				sendMail("[email protected]",
				         "Very high carbon dioxide level!",
				         "Carbon dioxide level is " + Netatmo_Indoor_CO2.state + " ppm.")
				co2VeryHighWarning = true
			}
		} else {
			co2HighWarning = false
			co2VeryHighWarning = false
		}
end

Example rule to send notifications if the module battery level is low:

rule "Monitor Netatmo battery levels"

when

    Time cron "00 10 * * * ?" or
    System started

then

    if( Netatmo_Outdoor_Batteryvp.state < 20) {
        logInfo("NetatmoBatteryAlerts","Netatmo Outdoor Sensor Battery is low: " + Netatmo_Outdoor_Batteryvp.state + " Sending alert!")
        var String mailSubject = "Netatmo Outdoor Sensor Battery is low: " + Netatmo_Outdoor_Batteryvp.state + "!"
        sendMail("<MAIL>", mailSubject, mailSubject);
    }

    if( Netatmo_Rain_Batteryvp.state < 20) {
        logInfo("NetatmoBatteryAlerts","Netatmo Rain Battery is low: " + Netatmo_Rain_Batteryvp.state + " Sending alert!")
        var String mailSubject = "Netatmo Rain Gauge Battery is low: " + Netatmo_Rain_Batteryvp.state + "!"
        sendMail("<MAIL>", mailSubject, mailSubject);
    }

end

Common problems

Missing Certificate Authority

javax.net.ssl.SSLHandshakeException:
sun.security.validator.ValidatorException:
PKIX path building failed:
sun.security.provider.certpath.SunCertPathBuilderException:
unable to find valid certification path to requested target

can be solved by installing the StartCom CA Certificate into the local JDK like this:

• Download the certificate from https://www.startssl.com/certs/ca.pem

• Then import it into the keystore (the password is "changeit")

$JAVA_HOME/bin/keytool -import -keystore $JAVA_HOME/jre/lib/security/cacerts -alias StartCom-Root-CA -file ca.pem

source: http://jinahya.wordpress.com/2013/04/28/installing-the-startcom-ca-certifcate-into-the-local-jdk/

alternative approach if above solution does not work:

sudo keytool -delete -alias StartCom-Root-CA -keystore $JAVA_HOME/jre/lib/security/cacerts -storepass changeit  

download the certificate from https://api.netatmo.net to $JAVA_HOME/jre/lib/security/ and save it as api.netatmo.net.crt (X.509 / PEM)

sudo $JAVA_HOME/bin/keytool -import -keystore $JAVA_HOME/jre/lib/security/cacerts -alias StartCom-Root-CA -file api.netatmo.net.crt 

The password is "changeit".

Sample data

If you want to evaluate this binding but have not got a Netatmo station yourself yet, you can add the Netatmo office in Paris to your account:

http://www.netatmo.com/en-US/addguest/index/TIQ3797dtfOmgpqUcct3/70:ee:50:00:02:20

Icons

The following icons are used by original Netatmo web app:

Modules

http://my.netatmo.com/img/my/app/module_int.png

http://my.netatmo.com/img/my/app/module_ext.png

http://my.netatmo.com/img/my/app/module_rain.png

Battery status

http://my.netatmo.com/img/my/app/battery_verylow.png

http://my.netatmo.com/img/my/app/battery_low.png

http://my.netatmo.com/img/my/app/battery_medium.png

http://my.netatmo.com/img/my/app/battery_high.png

http://my.netatmo.com/img/my/app/battery_full.png

Signal status

http://my.netatmo.com/img/my/app/signal_verylow.png

http://my.netatmo.com/img/my/app/signal_low.png

http://my.netatmo.com/img/my/app/signal_medium.png

http://my.netatmo.com/img/my/app/signal_high.png

http://my.netatmo.com/img/my/app/signal_full.png

Wifi status

http://my.netatmo.com/img/my/app/wifi_low.png

http://my.netatmo.com/img/my/app/wifi_medium.png

http://my.netatmo.com/img/my/app/wifi_high.png

http://my.netatmo.com/img/my/app/wifi_full.png