Implement OpenHAB autodiscovery (#612)

docs/integrate/openhab2.md

@@ -1,5 +1,18 @@
 # Integrate OPENHAB2
 
+## Auto discovery through home assistant convention
+
+OpenMQTTGateway support autodiscovery of things for OpenHAB 2.4, so as to do that it rely on home assistant auto discovery convention.
+So as to use the autodiscovery function you need to have:
+* The Jinga transformation addon installed
+* The Json transformation addon installed
+
+You need to set `OpenHABAutoDiscovery` to true into `config_mqttDiscovery.h`
+`#define OpenHABDiscovery true`
+
+The things will appear in the inbox of the paperUI, add them and links the channels. You should see them into the control panel for further usage.
+![](../img/OpenMQTTgateway_OpenHAB_Control.png)
+
 ## MQTT 2 manual setup >=Openhab2.4
 You should have a mqtt broker installed (either mosquitto or the OpenHAB2 embedded one)
 

main/ZgatewayBT.ino

@@ -149,10 +149,10 @@ void MiFloraDiscovery(char *mac)
 #define MiFloraparametersCount 4
   Log.trace(F("MiFloraDiscovery" CR));
   char *MiFlorasensor[MiFloraparametersCount][8] = {
-      {"sensor", "MiFlora-lux", mac, "illuminance", "{{ value_json.lux | is_defined }}", "", "", "lu"},
-      {"sensor", "MiFlora-tem", mac, "temperature", "{{ value_json.tem | is_defined }}", "", "", "°C"},
-      {"sensor", "MiFlora-fer", mac, "", "{{ value_json.fer | is_defined }}", "", "", "µS/cm"},
-      {"sensor", "MiFlora-moi", mac, "", "{{ value_json.moi | is_defined }}", "", "", "%"}
+      {"sensor", "MiFlora-lux", mac, "illuminance", jsonLux, "", "", "lu"},
+      {"sensor", "MiFlora-tem", mac, "temperature", jsonTemp, "", "", "°C"},
+      {"sensor", "MiFlora-fer", mac, "", jsonFer, "", "", "µS/cm"},
+      {"sensor", "MiFlora-moi", mac, "", jsonMoi, "", "", "%"}
       //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
   };
 
@@ -165,10 +165,10 @@ void VegTrugDiscovery(char *mac)
 #define VegTrugparametersCount 4
   Log.trace(F("VegTrugDiscovery" CR));
   char *VegTrugsensor[VegTrugparametersCount][8] = {
-      {"sensor", "VegTrug-lux", mac, "illuminance", "{{ value_json.lux | is_defined }}", "", "", "lu"},
-      {"sensor", "VegTrug-tem", mac, "temperature", "{{ value_json.tem | is_defined }}", "", "", "°C"},
-      {"sensor", "VegTrug-fer", mac, "", "{{ value_json.fer | is_defined }}", "", "", "µS/cm"},
-      {"sensor", "VegTrug-moi", mac, "", "{{ value_json.moi | is_defined }}", "", "", "%"}
+      {"sensor", "VegTrug-lux", mac, "illuminance", jsonLux, "", "", "lu"},
+      {"sensor", "VegTrug-tem", mac, "temperature", jsonTemp, "", "", "°C"},
+      {"sensor", "VegTrug-fer", mac, "", jsonFer, "", "", "µS/cm"},
+      {"sensor", "VegTrug-moi", mac, "", jsonMoi, "", "", "%"}
       //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
   };
   
@@ -181,9 +181,9 @@ void MiJiaDiscovery(char *mac)
 #define MiJiaparametersCount 3
   Log.trace(F("MiJiaDiscovery" CR));
   char *MiJiasensor[MiJiaparametersCount][8] = {
-      {"sensor", "MiJia-batt", mac, "battery", "{{ value_json.batt | is_defined }}", "", "", "%"},
-      {"sensor", "MiJia-tem", mac, "temperature", "{{ value_json.tem | is_defined }}", "", "", "°C"},
-      {"sensor", "MiJia-hum", mac, "humidity", "{{ value_json.hum | is_defined }}", "", "", "%"}
+      {"sensor", "MiJia-batt", mac, "battery", jsonBatt, "", "", "%"},
+      {"sensor", "MiJia-tem", mac, "temperature", jsonTemp, "", "", "°C"},
+      {"sensor", "MiJia-hum", mac, "humidity", jsonHum, "", "", "%"}
       //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
   };
   
@@ -196,9 +196,9 @@ void LYWSD02Discovery(char *mac)
 #define LYWSD02parametersCount 3
   Log.trace(F("LYWSD02Discovery" CR));
   char *LYWSD02sensor[LYWSD02parametersCount][8] = {
-      {"sensor", "LYWSD02-batt", mac, "battery", "{{ value_json.batt | is_defined }}", "", "", "V"},
-      {"sensor", "LYWSD02-tem", mac, "temperature", "{{ value_json.tem | is_defined }}", "", "", "°C"},
-      {"sensor", "LYWSD02-hum", mac, "humidity", "{{ value_json.hum | is_defined }}", "", "", "%"}
+      {"sensor", "LYWSD02-batt", mac, "battery", jsonBatt, "", "", "V"},
+      {"sensor", "LYWSD02-tem", mac, "temperature", jsonTemp, "", "", "°C"},
+      {"sensor", "LYWSD02-hum", mac, "humidity", jsonHum, "", "", "%"}
       //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
   };
 
@@ -211,9 +211,9 @@ void CLEARGRASSTRHDiscovery(char *mac)
 #define CLEARGRASSTRHparametersCount 3
   Log.trace(F("CLEARGRASSTRHDiscovery" CR));
   char *CLEARGRASSTRHsensor[CLEARGRASSTRHparametersCount][8] = {
-      {"sensor", "CLEARGRASSTRH-batt", mac, "battery", "{{ value_json.batt | is_defined }}", "", "", "V"},
-      {"sensor", "CLEARGRASSTRH-tem", mac, "temperature", "{{ value_json.tem | is_defined }}", "", "", "°C"},
-      {"sensor", "CLEARGRASSTRH-hum", mac, "humidity", "{{ value_json.hum | is_defined }}", "", "", "%"}
+      {"sensor", "CLEARGRASSTRH-batt", mac, "battery", jsonBatt, "", "", "V"},
+      {"sensor", "CLEARGRASSTRH-tem", mac, "temperature", jsonTemp, "", "", "°C"},
+      {"sensor", "CLEARGRASSTRH-hum", mac, "humidity", jsonHum, "", "", "%"}
       //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
   };
 
@@ -226,9 +226,9 @@ void CLEARGRASSCGD1Discovery(char *mac)
 #define CLEARGRASSCGD1parametersCount 3
   Log.trace(F("CLEARGRASSCGD1Discovery" CR));
   char *CLEARGRASSCGD1sensor[CLEARGRASSCGD1parametersCount][8] = {
-      {"sensor", "CLEARGRASSCGD1-batt", mac, "battery", "{{ value_json.batt | is_defined }}", "", "", "V"},
-      {"sensor", "CLEARGRASSCGD1-tem", mac, "temperature", "{{ value_json.tem | is_defined }}", "", "", "°C"},
-      {"sensor", "CLEARGRASSCGD1-hum", mac, "humidity", "{{ value_json.hum | is_defined }}", "", "", "%"}
+      {"sensor", "CLEARGRASSCGD1-batt", mac, "battery", jsonBatt, "", "", "V"},
+      {"sensor", "CLEARGRASSCGD1-tem", mac, "temperature", jsonTemp, "", "", "°C"},
+      {"sensor", "CLEARGRASSCGD1-hum", mac, "humidity", jsonHum, "", "", "%"}
       //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
   };
 
@@ -241,9 +241,9 @@ void CLEARGRASSTRHKPADiscovery(char *mac)
 #define CLEARGRASSTRHKPAparametersCount 3
   Log.trace(F("CLEARGRASSTRHKPADiscovery" CR));
   char *CLEARGRASSTRHKPAsensor[CLEARGRASSTRHKPAparametersCount][8] = {
-      {"sensor", "CLEARGRASSTRHKPA-pres", mac, "pressure", "{{ value_json.pres | is_defined }}", "", "", "kPa"},
-      {"sensor", "CLEARGRASSTRHKPA-tem", mac, "temperature", "{{ value_json.tem | is_defined }}", "", "", "°C"},
-      {"sensor", "CLEARGRASSTRHKPA-hum", mac, "humidity", "{{ value_json.hum | is_defined }}", "", "", "%"}
+      {"sensor", "CLEARGRASSTRHKPA-pres", mac, "pressure", jsonPres, "", "", "kPa"},
+      {"sensor", "CLEARGRASSTRHKPA-tem", mac, "temperature", jsonTemp, "", "", "°C"},
+      {"sensor", "CLEARGRASSTRHKPA-hum", mac, "humidity", jsonHum, "", "", "%"}
       //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
   };
 
@@ -256,7 +256,7 @@ void MiScaleDiscovery(char *mac)
 #define MiScaleparametersCount 1
   Log.trace(F("MiScaleDiscovery" CR));
   char *MiScalesensor[MiScaleparametersCount][8] = {
-      {"sensor", "MiScale-weight", mac, "", "{{ value_json.weight | is_defined }}", "", "", "kg"},
+      {"sensor", "MiScale-weight", mac, "", jsonWeight, "", "", "kg"},
       //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
   };
 
@@ -269,7 +269,7 @@ void MiLampDiscovery(char *mac)
 #define MiLampparametersCount 1
   Log.trace(F("MiLampDiscovery" CR));
   char *MiLampsensor[MiLampparametersCount][8] = {
-      {"sensor", "MiLamp-presence", mac, "", "{{ value_json.presence}}", "", "", "d"},
+      {"sensor", "MiLamp-presence", mac, "", jsonPresence, "", "", "d"},
       //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
   };
 
@@ -282,7 +282,7 @@ void MiBandDiscovery(char *mac)
 #define MiBandparametersCount 1
   Log.trace(F("MiBandDiscovery" CR));
   char *MiBandsensor[MiBandparametersCount][8] = {
-      {"sensor", "MiBand-steps", mac, "", "{{ value_json.steps | is_defined }}", "", "", "nb"},
+      {"sensor", "MiBand-steps", mac, "", jsonStep, "", "", "nb"},
       //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
   };
 

main/ZmqttDiscovery.ino

@@ -109,14 +109,6 @@ void createDiscovery(char *sensor_type,
     sensor.set("cmd_t", command_topic); //command_topic
   }
 
-  /*if (strcmp(s_name, Gateway_Name) == 0){
-  JsonArray &json_attributes = sensor.createNestedArray("json_attributes");
-  json_attributes.add("uptime");
-  json_attributes.add("freemem");
-  json_attributes.add("rssi");
-  json_attributes.add("SSID");
-}*/
-
   if (child_device)
   {
     StaticJsonBuffer<JSON_MSG_BUFFER> jsonDeviceBuffer;
@@ -161,12 +153,12 @@ void pubMqttDiscovery()
 #define BMEparametersCount 6
   Log.trace(F("bme280Discovery" CR));
   char *BMEsensor[BMEparametersCount][8] = {
-      {"sensor", "tempc", "bme", "temperature", "{{ value_json.tempc }}", "", "", "°C"},
-      {"sensor", "tempf", "bme", "temperature", "{{ value_json.tempf }}", "", "", "°F"},
-      {"sensor", "pa", "bme", "", "{{ float(value_json.pa) * 0.01 }}", "", "", "hPa"},
-      {"sensor", "hum", "bme", "humidity", "{{ value_json.hum }}", "", "", "%"},
-      {"sensor", "altim", "bme", "", "{{ value_json.altim }}", "", "", "m"},
-      {"sensor", "altift", "bme", "", "{{ value_json.altift }}", "", "", "ft"}
+      {"sensor", "tempc", "bme", "temperature", jsonTemp, "", "", "°C"},
+      {"sensor", "tempf", "bme", "temperature", jsonTempf, "", "", "°F"},
+      {"sensor", "pa", "bme", "", jsonPa, "", "", "hPa"},
+      {"sensor", "hum", "bme", "humidity", jsonHum, "", "", "%"},
+      {"sensor", "altim", "bme", "", jsonAltim, "", "", "m"},
+      {"sensor", "altift", "bme", "", jsonAltif, "", "", "ft"}
       //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
   };
 
@@ -186,9 +178,9 @@ void pubMqttDiscovery()
 #define HTUparametersCount 3
   Log.trace(F("htu21Discovery" CR));
   char *HTUsensor[HTUparametersCount][8] = {
-      {"sensor", "tempc", "htu", "temperature", "{{ value_json.tempc }}", "", "", "°C"},
-      {"sensor", "tempf", "htu", "temperature", "{{ value_json.tempf }}", "", "", "°F"},
-      {"sensor", "hum", "htu", "humidity", "{{ value_json.hum }}", "", "", "%"}
+      {"sensor", "tempc", "htu", "temperature", jsonTemp, "", "", "°C"},
+      {"sensor", "tempf", "htu", "temperature", jsonTempf, "", "", "°F"},
+      {"sensor", "hum", "htu", "humidity", jsonHum, "", "", "%"}
       //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
   };
 
@@ -208,8 +200,8 @@ void pubMqttDiscovery()
 #define DHTparametersCount 2
   Log.trace(F("DHTDiscovery" CR));
   char *DHTsensor[DHTparametersCount][8] = {
-      {"sensor", "tempc", "dht", "temperature", "{{ value_json.temp }}", "", "", "°C"},
-      {"sensor", "hum", "dht", "humidity", "{{ value_json.hum }}", "", "", "%"}};
+      {"sensor", "tempc", "dht", "temperature", jsonTemp, "", "", "°C"},
+      {"sensor", "hum", "dht", "humidity", jsonHum, "", "", "%"}};
 
   for (int i = 0; i < DHTparametersCount; i++)
   {
@@ -225,7 +217,7 @@ void pubMqttDiscovery()
 
 #ifdef ZsensorADC
   Log.trace(F("ADCDiscovery" CR));
-  char *ADCsensor[8] = {"sensor", "adc", "", "", "{{ value_json.adc }}", "", "", ""};
+  char *ADCsensor[8] = {"sensor", "adc", "", "", jsonAdc, "", "", ""};
   //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
 
   Log.trace(F("CreateDiscoverySensor" CR));
@@ -241,9 +233,9 @@ void pubMqttDiscovery()
 #define BH1750parametersCount 3
   Log.trace(F("BH1750Discovery" CR));
   char *BH1750sensor[BH1750parametersCount][8] = {
-      {"sensor", "lux", "BH1750", "illuminance", "{{ value_json.lux }}", "", "", "lu"},
-      {"sensor", "ftCd", "BH1750", "", "{{ value_json.ftCd }}", "", "", ""},
-      {"sensor", "wattsm2", "BH1750", "", "{{ value_json.wattsm2 }}", "", "", "wm²"}
+      {"sensor", "lux", "BH1750", "illuminance", jsonLux, "", "", "lu"},
+      {"sensor", "ftCd", "BH1750", "", jsonFtcd, "", "", ""},
+      {"sensor", "wattsm2", "BH1750", "", jsonWm2, "", "", "wm²"}
       //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
   };
 
@@ -263,9 +255,9 @@ void pubMqttDiscovery()
 #define TSL2561parametersCount 3
   Log.trace(F("TSL2561Discovery" CR));
   char *TSL2561sensor[TSL2561parametersCount][8] = {
-      {"sensor", "lux", "TSL2561", "illuminance", "{{ value_json.lux }}", "", "", "lu"},
-      {"sensor", "ftcd", "TSL2561", "", "{{ value_json.ftcd }}", "", "", ""},
-      {"sensor", "wattsm2", "TSL2561", "", "{{ value_json.wattsm2 }}", "", "", "wm²"}
+      {"sensor", "lux", "TSL2561", "illuminance", jsonLux, "", "", "lu"},
+      {"sensor", "ftcd", "TSL2561", "", jsonFtcd, "", "", ""},
+      {"sensor", "wattsm2", "TSL2561", "", jsonWm2, "", "", "wm²"}
       //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
   };
 
@@ -283,7 +275,7 @@ void pubMqttDiscovery()
 
 #ifdef ZsensorHCSR501
   Log.trace(F("HCSR501Discovery" CR));
-  char *HCSR501sensor[8] = {"binary_sensor", "hcsr501", "", "", "{{value_json.hcsr501}}", "true", "false", ""};
+  char *HCSR501sensor[8] = {"binary_sensor", "hcsr501", "", "", jsonPresence, "true", "false", ""};
   //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
 
   Log.trace(F("CreateDiscoverySensor" CR));
@@ -297,7 +289,7 @@ void pubMqttDiscovery()
 
 #ifdef ZsensorGPIOInput
   Log.trace(F("GPIOInputDiscovery" CR));
-  char *GPIOInputsensor[8] = {"binary_sensor", "GPIOInput", "", "", "{{value_json.gpio}}", "HIGH", "LOW", ""};
+  char *GPIOInputsensor[8] = {"binary_sensor", "GPIOInput", "", "", jsonGpio, "HIGH", "LOW", ""};
   //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
 
   Log.trace(F("CreateDiscoverySensor" CR));
@@ -313,9 +305,9 @@ void pubMqttDiscovery()
 #define INA226parametersCount 3
   Log.trace(F("INA226Discovery" CR));
   char *INA226sensor[INA226parametersCount][8] = {
-      {"sensor", "volt", "INA226", "", "{{ value_json.volt }}", "", "", "V"},
-      {"sensor", "current", "INA226", "", "{{ value_json.current }}", "", "", "A"},
-      {"sensor", "power", "INA226", "", "{{ value_json.power }}", "", "", "W"}
+      {"sensor", "volt", "INA226", "", jsonVolt, "", "", "V"},
+      {"sensor", "current", "INA226", "", jsonCurrent, "", "", "A"},
+      {"sensor", "power", "INA226", "", jsonPower, "", "", "W"}
       //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
   };
 
@@ -348,7 +340,7 @@ void pubMqttDiscovery()
 #ifdef ZgatewayRF
   // Sensor to display RF received value
   Log.trace(F("gatewayRFDiscovery" CR));
-  char *gatewayRF[8] = {"sensor", "gatewayRF", "", "", "{{ value_json.value }}", "", "", ""};
+  char *gatewayRF[8] = {"sensor", "gatewayRF", "", "", jsonVal, "", "", ""};
   //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
 
   Log.trace(F("CreateDiscoverySensor" CR));
@@ -363,7 +355,7 @@ void pubMqttDiscovery()
 #ifdef ZgatewayRF2
   // Sensor to display RF received value
   Log.trace(F("gatewayRF2Discovery" CR));
-  char *gatewayRF2[8] = {"sensor", "gatewayRF2", "", "", "{{ value_json.value }}", "", "", ""};
+  char *gatewayRF2[8] = {"sensor", "gatewayRF2", "", "", jsonVal, "", "", ""};
   //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
 
   Log.trace(F("CreateDiscoverySensor" CR));
@@ -378,7 +370,7 @@ void pubMqttDiscovery()
 #ifdef ZgatewayRFM69
   // Sensor to display RF received value
   Log.trace(F("gatewayRFM69Discovery" CR));
-  char *gatewayRFM69[8] = {"sensor", "gatewayRFM69", "", "", "{{ value_json.value }}", "", "", ""};
+  char *gatewayRFM69[8] = {"sensor", "gatewayRFM69", "", "", jsonVal, "", "", ""};
   //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
 
   Log.trace(F("CreateDiscoverySensor" CR));
@@ -393,7 +385,7 @@ void pubMqttDiscovery()
 #ifdef ZgatewayLORA
   // Sensor to display RF received value
   Log.trace(F("gatewayLORADiscovery" CR));
-  char *gatewayLORA[8] = {"sensor", "gatewayLORA", "", "", "{{ value_json.message }}", "", "", ""};
+  char *gatewayLORA[8] = {"sensor", "gatewayLORA", "", "", jsonMsg, "", "", ""};
   //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
 
   Log.trace(F("CreateDiscoverySensor" CR));
@@ -408,7 +400,7 @@ void pubMqttDiscovery()
 #ifdef ZgatewaySRFB
   // Sensor to display RF received value
   Log.trace(F("gatewaySRFBDiscovery" CR));
-  char *gatewaySRFB[8] = {"sensor", "gatewaySRFB", "", "", "{{ value_json.value }}", "", "", ""};
+  char *gatewaySRFB[8] = {"sensor", "gatewaySRFB", "", "", jsonVal, "", "", ""};
   //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
 
   Log.trace(F("CreateDiscoverySensor" CR));
@@ -423,7 +415,7 @@ void pubMqttDiscovery()
 #ifdef ZgatewayPilight
   // Sensor to display RF received value
   Log.trace(F("gatewayPilightDiscovery" CR));
-  char *gatewayPilight[8] = {"sensor", "gatewayPilight", "", "", "{{ value_json.message }}", "", "", ""};
+  char *gatewayPilight[8] = {"sensor", "gatewayPilight", "", "", jsonMsg, "", "", ""};
   //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
 
   Log.trace(F("CreateDiscoverySensor" CR));
@@ -438,7 +430,7 @@ void pubMqttDiscovery()
 #ifdef ZgatewayIR
   // Sensor to display IR received value
   Log.trace(F("gatewayIRDiscovery" CR));
-  char *gatewayIR[8] = {"sensor", "gatewayIR", "", "", "{{ value_json.value }}", "", "", ""};
+  char *gatewayIR[8] = {"sensor", "gatewayIR", "", "", jsonVal, "", "", ""};
   //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
 
   Log.trace(F("CreateDiscoverySensor" CR));
@@ -453,7 +445,7 @@ void pubMqttDiscovery()
 #ifdef Zgateway2G
   // Sensor to display 2G received value
   Log.trace(F("gateway2GDiscovery" CR));
-  char *gateway2G[8] = {"sensor", "gateway2G", "", "", "{{ value_json.message }}", "", "", ""};
+  char *gateway2G[8] = {"sensor", "gateway2G", "", "", jsonMsg, "", "", ""};
   //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
 
   Log.trace(F("CreateDiscoverySensor" CR));
@@ -468,7 +460,7 @@ void pubMqttDiscovery()
 #ifdef ZgatewayBT
   // Sensor to display BT received value
   Log.trace(F("gatewayBTDiscovery" CR));
-  char *gatewayBT[8] = {"sensor", "gatewayBT", "", "", "{{ value_json.id }}", "", "", ""};
+  char *gatewayBT[8] = {"sensor", "gatewayBT", "", "", jsonId, "", "", ""};
   //component type,name,availability topic,device class,value template,payload on, payload off, unit of measurement
 
   Log.trace(F("CreateDiscoverySensor" CR));

main/config_mqttDiscovery.h

@@ -41,4 +41,60 @@ extern void createDiscovery(char * sensor_type,
 
 #define DEVICEMANUFACTURER "OMG_community"
 
+/*-------------- Auto discovery macros-----------------*/
+// Set the line below to true so as to have autodiscovery working with OpenHAB 
+#define OpenHABDiscovery false
+
+#if OpenHABDiscovery // OpenHAB autodiscovery value key definition (is defined command is not supported by OpenHAB)
+#define jsonBatt      "{{ value_json.batt }}"
+#define jsonLux       "{{ value_json.lux }}"
+#define jsonPres      "{{ value_json.pres }}"
+#define jsonFer       "{{ value_json.fer }}"
+#define jsonMoi       "{{ value_json.moi }}"
+#define jsonHum       "{{ value_json.hum }}"
+#define jsonTemp      "{{ value_json.tem }}"
+#define jsonStep      "{{ value_json.steps }}"
+#define jsonWeight    "{{ value_json.weight }}"
+#define jsonPresence  "{{ value_json.presence }}"
+#define jsonAltim     "{{ value_json.altim }}"
+#define jsonAltif     "{{ value_json.altift }}"
+#define jsonTempf     "{{ value_json.tempf }}"
+#define jsonMsg       "{{ value_json.message }}"
+#define jsonVal       "{{ value_json.value }}"
+#define jsonVolt      "{{ value_json.volt }}"
+#define jsonCurrent   "{{ value_json.current }}"
+#define jsonPower     "{{ value_json.power }}"
+#define jsonGpio      "{{ value_json.gpio }}"
+#define jsonFtcd      "{{ value_json.ftcd }}"
+#define jsonWm2       "{{ value_json.wattsm2 }}"
+#define jsonAdc       "{{ value_json.adc }}"
+#define jsonPa        "{{ float(value_json.pa) * 0.01 }}"
+#define jsonId        "{{ value_json.id }}"
+#else // Home assistant autodiscovery value key definition
+#define jsonBatt      "{{ value_json.batt | is_defined }}"
+#define jsonLux       "{{ value_json.lux | is_defined }}"
+#define jsonPres      "{{ value_json.pres | is_defined }}"
+#define jsonFer       "{{ value_json.fer | is_defined }}"
+#define jsonMoi       "{{ value_json.moi | is_defined }}"
+#define jsonHum       "{{ value_json.hum | is_defined }}"
+#define jsonTemp      "{{ value_json.tem | is_defined }}"
+#define jsonStep      "{{ value_json.steps | is_defined }}"
+#define jsonWeight    "{{ value_json.weight | is_defined }}"
+#define jsonPresence  "{{ value_json.presence | is_defined }}"
+#define jsonAltim     "{{ value_json.altim | is_defined }}"
+#define jsonAltif     "{{ value_json.altift | is_defined }}"
+#define jsonTempf     "{{ value_json.tempf | is_defined }}"
+#define jsonMsg       "{{ value_json.message | is_defined }}"
+#define jsonVal       "{{ value_json.value | is_defined }}"
+#define jsonVolt      "{{ value_json.volt | is_defined }}"
+#define jsonCurrent   "{{ value_json.current | is_defined }}"
+#define jsonPower     "{{ value_json.power | is_defined }}"
+#define jsonGpio      "{{ value_json.gpio | is_defined }}"
+#define jsonFtcd      "{{ value_json.ftcd | is_defined }}"
+#define jsonWm2       "{{ value_json.wattsm2 | is_defined }}"
+#define jsonAdc       "{{ value_json.adc | is_defined }}"
+#define jsonPa        "{{ float(value_json.pa) * 0.01 | is_defined }}"
+#define jsonId        "{{ value_json.id | is_defined }}"
+#endif
+
 #endif