esphome: name: kona-mqtt-sender comment: "ESP32 #2 – empfängt Kona EV Daten via UART, sendet per MQTT an Home Assistant" esp32: board: esp32dev framework: type: arduino wifi: ssid: !secret wifi_ssid password: !secret wifi_password fast_connect: true web_server: port: 80 local: true logger: level: DEBUG api: encryption: key: !secret ha_api_key_2 ota: platform: esphome # ────────────────────────────────────────────── # MQTT Verbindung zu Home Assistant # ────────────────────────────────────────────── mqtt: broker: 192.168.x.x #YOUR_MQTT_BROKER_IP port: 1883 username: !secret mqtt_username password: !secret mqtt_password client_id: kona-mqtt-sender topic_prefix: kona birth_message: topic: kona/status payload: online will_message: topic: kona/status payload: offline on_message: - topic: zigbee2mqtt/Garagentor then: - lambda: |- // Nur beim Öffnen triggern (contact: false) if (x.find("\"contact\":false") != std::string::npos) { ESP_LOGI("GARAGE", "Tor geöffnet - OBD Impuls fuer 5min"); id(g_garage_enable_until) = millis() + 300000; // 5 Minuten if (!id(g_wallbox_charging)) { id(g_enabled) = true; id(uart_from_esp1).write_str("CMD:ENABLE\n"); } } - topic: delta-wallbox/sensor/evse1_charge_state/state then: - lambda: |- int state = atoi(x.c_str()); if (state == 3) { id(g_wallbox_charging) = true; id(g_enabled) = true; ESP_LOGI("CTRL", "OBD Abfragen aktiviert (Wallbox laedt)"); id(uart_from_esp1).write_str("CMD:ENABLE\n"); } else { id(g_wallbox_charging) = false; ESP_LOGI("CTRL", "Wallbox laedt nicht (State: %d)", state); // Nur deaktivieren wenn auch kein Garage-Timer aktiv if (id(g_garage_enable_until) == 0 || millis() > id(g_garage_enable_until)) { id(g_enabled) = false; id(g_garage_enable_until) = 0; // Strom, Leistung und Ladestatus explizit auf 0 setzen // da ESP1 nach CMD:DISABLE keine UART-Pakete mehr sendet id(g_charging) = false; id(g_current) = 0.0f; id(sensor_current).publish_state(0.0f); id(sensor_power).publish_state(0.0f); id(sensor_charging).publish_state(false); ESP_LOGI("CTRL", "OBD Abfragen deaktiviert (Wallbox nicht laden)"); id(uart_from_esp1).write_str("CMD:DISABLE\n"); } } # ────────────────────────────────────────────── # UART von ESP32 #1 # TX von ESP32 #1 (GPIO17) → RX hier (GPIO16) # GND verbinden nicht vergessen! # ────────────────────────────────────────────── uart: id: uart_from_esp1 rx_pin: GPIO16 tx_pin: GPIO17 baud_rate: 115200 # ────────────────────────────────────────────── # Globale Variablen # ────────────────────────────────────────────── globals: - id: g_enabled type: bool initial_value: "true" - id: g_garage_enable_until type: unsigned long initial_value: "0" - id: g_wallbox_charging type: bool initial_value: "false" - id: g_soc type: float initial_value: "0.0" - id: g_soh type: float initial_value: "0.0" - id: g_tavg type: float initial_value: "0.0" - id: g_tmin type: float initial_value: "0.0" - id: g_tmax type: float initial_value: "0.0" - id: g_voltage type: float initial_value: "0.0" - id: g_current type: float initial_value: "0.0" - id: g_charging type: bool initial_value: "false" - id: g_rssi type: int initial_value: "0" - id: g_cycles type: float initial_value: "0.0" - id: uart_buf type: std::string initial_value: '""' # ────────────────────────────────────────────── # UART einlesen + parsen # Format: SOC:85.5,SOH:97.0,TAVG:24.5,TMIN:22.0,TMAX:27.0,V:385.2,I:-5.3,CHG:0,CYC:123 # ────────────────────────────────────────────── interval: - interval: 30s then: - lambda: |- // Garage Timer prüfen if (id(g_garage_enable_until) > 0 && millis() > id(g_garage_enable_until)) { id(g_garage_enable_until) = 0; if (!id(g_wallbox_charging)) { ESP_LOGI("GARAGE", "5min Impuls abgelaufen - OBD deaktivieren"); id(g_enabled) = false; // Strom, Leistung und Ladestatus auf 0 setzen id(g_charging) = false; id(g_current) = 0.0f; id(sensor_current).publish_state(0.0f); id(sensor_power).publish_state(0.0f); id(sensor_charging).publish_state(false); id(uart_from_esp1).write_str("CMD:DISABLE\n"); } } - interval: 100ms then: - lambda: |- // Alle verfügbaren Bytes einlesen while (id(uart_from_esp1).available()) { uint8_t c; id(uart_from_esp1).read_byte(&c); if (c == '\n') { // Zeile komplett → parsen std::string line = id(uart_buf); id(uart_buf) = ""; if (line.empty()) return; ESP_LOGD("UART", "Empfangen: %s", line.c_str()); // Hilfsfunktion: Wert nach Key extrahieren auto get_val = [&](const std::string& key) -> std::string { size_t pos = line.find(key + ":"); if (pos == std::string::npos) return ""; pos += key.size() + 1; size_t end = line.find(',', pos); if (end == std::string::npos) end = line.size(); return line.substr(pos, end - pos); }; // Werte parsen std::string v; v = get_val("SOC"); if (!v.empty()) id(g_soc) = atof(v.c_str()); v = get_val("SOH"); if (!v.empty()) id(g_soh) = atof(v.c_str()); v = get_val("TAVG"); if (!v.empty()) id(g_tavg) = atof(v.c_str()); v = get_val("TMIN"); if (!v.empty()) id(g_tmin) = atof(v.c_str()); v = get_val("TMAX"); if (!v.empty()) id(g_tmax) = atof(v.c_str()); v = get_val("V"); if (!v.empty()) id(g_voltage) = atof(v.c_str()); v = get_val("CHG"); if (!v.empty()) id(g_charging) = (atoi(v.c_str()) == 1); v = get_val("I"); if (!v.empty()) id(g_current) = id(g_charging) ? atof(v.c_str()) : 0.0f; v = get_val("CYC"); if (!v.empty()) id(g_cycles) = atof(v.c_str()); v = get_val("RSSI"); if (!v.empty()) id(g_rssi) = atoi(v.c_str()); // WiFi Signal immer publizieren id(sensor_wifi_signal).publish_state(id(g_rssi)); id(g_rssi) = 0; // Zurücksetzen damit kein veralteter Wert publiziert wird // Laden-Status immer publizieren (unabhängig von SOC) id(sensor_charging).publish_state(id(g_charging)); // Nur publizieren wenn echte Daten vorhanden (SOC > 0) if (id(g_soc) > 0.0f) { id(sensor_soc).publish_state(id(g_soc)); id(sensor_soh).publish_state(id(g_soh)); id(sensor_tavg).publish_state(id(g_tavg)); id(sensor_tmin).publish_state(id(g_tmin)); id(sensor_tmax).publish_state(id(g_tmax)); id(sensor_voltage).publish_state(id(g_voltage)); id(sensor_current).publish_state(id(g_current)); id(sensor_cycles).publish_state(id(g_cycles)); id(sensor_power).publish_state(id(g_voltage) * id(g_current)); } } else if (c != '\r') { id(uart_buf) += (char)c; } } # ────────────────────────────────────────────── # Sensoren → werden automatisch per MQTT publiziert # Topics: kona/sensor/kona_soc/state usw. # ────────────────────────────────────────────── sensor: - platform: template name: "Kona SOC" id: sensor_soc unit_of_measurement: "%" accuracy_decimals: 1 device_class: battery state_class: measurement - platform: template name: "Kona SOH" id: sensor_soh unit_of_measurement: "%" accuracy_decimals: 1 state_class: measurement filters: - delta: 1.0 - platform: template name: "Kona Batterie Temp Avg" id: sensor_tavg unit_of_measurement: "°C" accuracy_decimals: 1 device_class: temperature state_class: measurement filters: - delta: 0.5 - platform: template name: "Kona Batterie Temp Min" id: sensor_tmin unit_of_measurement: "°C" accuracy_decimals: 1 device_class: temperature state_class: measurement filters: - delta: 0.5 - platform: template name: "Kona Batterie Temp Max" id: sensor_tmax unit_of_measurement: "°C" accuracy_decimals: 1 device_class: temperature state_class: measurement filters: - delta: 0.5 - platform: template name: "Kona Batterie Spannung" id: sensor_voltage unit_of_measurement: "V" accuracy_decimals: 1 device_class: voltage state_class: measurement filters: - delta: 0.5 - platform: template name: "Kona Batterie Strom" id: sensor_current unit_of_measurement: "A" accuracy_decimals: 1 device_class: current state_class: measurement - platform: template name: "Kona Ladezyklen" id: sensor_cycles unit_of_measurement: "" accuracy_decimals: 0 state_class: total_increasing filters: - delta: 1.0 - platform: template name: "Kona iCar2 Signal" id: sensor_wifi_signal unit_of_measurement: "dBm" device_class: signal_strength state_class: measurement accuracy_decimals: 0 filters: - lambda: |- if (x >= 0) return {}; // 0 und INT_MAX filtern return x; - platform: template name: "Kona Batterie Leistung" id: sensor_power unit_of_measurement: "W" accuracy_decimals: 0 device_class: power state_class: measurement binary_sensor: - platform: template name: "Kona lädt" id: sensor_charging device_class: battery_charging