Version 1.24

Added encrypting messages.

README.md

@@ -4,7 +4,7 @@ Gateway for data exchange between ESP-NOW devices and MQTT broker via WiFi.
 
 ## Features
 
-1. Creates an access point named "ESP-NOW Gateway XXXXXXXXXXXX" with password "12345678" (IP 192.168.4.1).
+1. Creates an access point named "ESP-NOW gateway XXXXXXXXXXXX" with password "12345678" (IP 192.168.4.1).
 2. Possibility a device search through the Windows Network Environment via SSDP.
 3. Periodically transmission of system information to the MQTT broker (every 60 seconds) and availability status to the ESP-NOW network and to the MQTT broker (every 10 seconds).
 4. Automatically adds gateway configuration to Home Assistan via MQTT discovery as a binary_sensor.
@@ -21,8 +21,9 @@ Gateway for data exchange between ESP-NOW devices and MQTT broker via WiFi.
 ## Attention
 
 1. ESP-NOW network name must be set same of all another ESP-NOW devices in network.
-2. Upload the "data" folder (with web interface) into the filesystem before flashing.
-3. WiFi router must be set on channel 1.
+2. If encryption is used, the key must be set same of all another ESP-NOW devices in network.
+3. Upload the "data" folder (with web interface) into the filesystem before flashing.
+4. WiFi router must be set on channel 1.
 
 ## Tested on
 

src/main.cpp

@@ -34,7 +34,7 @@ void setupWebServer(void);
 
 void connectToMqtt(void);
 
-const String firmware{"1.22"};
+const String firmware{"1.24"};
 
 String espnowNetName{"DEFAULT"};
 
@@ -90,6 +90,7 @@ void setup()
     WiFi.setAutoReconnect(true);
 
     myNet.begin(espnowNetName.c_str(), true);
+    // myNet.setCryptKey("VERY_LONG_CRYPT_KEY"); // If encryption is used, the key must be set same of all another ESP-NOW devices in network.
 
     myNet.setOnBroadcastReceivingCallback(onEspnowMessage);
     myNet.setOnUnicastReceivingCallback(onEspnowMessage);
@@ -184,7 +185,7 @@ void onEspnowMessage(const char *data, const uint8_t *sender)
             jsonConfig["unique_id"] = myNet.macToString(sender) + "-" + unit;
             jsonConfig["device_class"] = getValueName(json["class"].as<ha_switch_device_class_t>());
             jsonConfig["state_topic"] = topicPrefix + "/" + getValueName(incomingData.deviceType) + "/" + myNet.macToString(sender) + "/state";
-            jsonConfig["value_template"] = "{{ value_json.state }}";
+            jsonConfig["value_template"] = "{{ value_json." + json["template"].as<String>() + " }}";
             jsonConfig["command_topic"] = topicPrefix + "/" + getValueName(incomingData.deviceType) + "/" + myNet.macToString(sender) + "/set";
             jsonConfig["json_attributes_topic"] = topicPrefix + "/" + getValueName(incomingData.deviceType) + "/" + myNet.macToString(sender) + "/attributes";
             jsonConfig["availability_topic"] = topicPrefix + "/" + getValueName(incomingData.deviceType) + "/" + myNet.macToString(sender) + "/status";
@@ -252,19 +253,16 @@ void onEspnowMessage(const char *data, const uint8_t *sender)
             jsonConfig["name"] = json["name"];
             jsonConfig["unique_id"] = myNet.macToString(sender) + "-" + unit;
             jsonConfig["state_topic"] = topicPrefix + "/" + getValueName(incomingData.deviceType) + "/" + myNet.macToString(sender) + "/state";
-            jsonConfig["value_template"] = "{{ value_json.state }}";
+            jsonConfig["value_template"] = "{{ value_json." + json["template"].as<String>() + " }}";
             jsonConfig["json_attributes_topic"] = topicPrefix + "/" + getValueName(incomingData.deviceType) + "/" + myNet.macToString(sender) + "/attributes";
             jsonConfig["force_update"] = "true";
             jsonConfig["qos"] = 2;
             jsonConfig["retain"] = "true";
             if (type == HACT_BINARY_SENSOR)
             {
-                ha_binary_sensor_device_class_t deviceClass = json["class"].as<ha_binary_sensor_device_class_t>();
-                jsonConfig["device_class"] = getValueName(deviceClass);
+                jsonConfig["device_class"] = getValueName(json["class"].as<ha_binary_sensor_device_class_t>());
                 jsonConfig["payload_on"] = json["payload_on"];
                 jsonConfig["payload_off"] = json["payload_off"];
-                if (deviceClass == HABSDC_BATTERY)
-                    jsonConfig["value_template"] = "{{ value_json.battery }}";
             }
             char buffer[2048]{0};
             serializeJsonPretty(jsonConfig, buffer);