Citation :première erreur:

Enregistreur: homeassistant.components.mqtt.client
Source: components/mqtt/client.py:1183
intégration: MQTT (documentation, problèmes)
S'est produit pour la première fois: 05:15:21 (8 occurrences)
Dernier enregistrement: 05:30:20

Can't decode payload b'{"name": "Tension M","uniq_id": "routeur_rms_Tension_M","stat_t": "homeassistant/routeur_rms_state","device_class": "voltage","unit_of_meas": "V","unit_class":"voltage",oF\xfc?\xa2E\xfc?larouteur_rms_RTE_Demain"val_tpl": "{{ value_json.Tension_M|default(0)|round(2)}}","device": {"ids":"31abe342a8","name":"Routeur - ECS","mdl":"ESP32 - 31abe342a8","mf":"F1ATB - https://f1atb.fr","hw":"ESP32-D0WD-V3 rev.301","sw":"17.08","cu":"http://192.168.1.45"}, "availability_topic": "homeassistant/routeur_rms/Available"}' on homeassistant/sensor/routeur_rms_Tension_M/config with encoding utf-8 (for <Job None HassJobType.Callback <function async_start.<locals>.async_discovery_message_received at 0x7fdd7a3a47d0>>)

Can't decode payload b'{"name": "Intensit\xc3\xa9 M","uniq_id": "routeur_rms_Intensite_M","stat_t": "homeassistant/routeur_rms_state","device_class": "current","unit_of_meas": "A","unit_class":"current",oF\xfc?\xa2E\xfc?larouteur_rms_RTE_Demain"val_tpl": "{{ value_json.Intensite_M|default(0)|round(2)}}","device": {"ids":"31abe342a8","name":"Routeur - ECS","mdl":"ESP32 - 31abe342a8","mf":"F1ATB - https://f1atb.fr","hw":"ESP32-D0WD-V3 rev.301","sw":"17.08","cu":"http://192.168.1.45"}, "availability_topic": "homeassistant/routeur_rms/Available"}' on homeassistant/sensor/routeur_rms_Intensite_M/config with encoding utf-8 (for <Job None HassJobType.Callback <function async_start.<locals>.async_discovery_message_received at 0x7fdd7a3a47d0>>)

deuxième erreur :

Enregistreur: homeassistant.components.sensor.recorder
Source: components/sensor/recorder.py:416
intégration: Capteur (documentation, problèmes)
S'est produit pour la première fois: 05:15:10 (2 occurrences)
Dernier enregistrement: 05:15:10

Entity sensor.routeur_ecs_routeur_rms_frequence from integration mqtt has state class total_increasing, but its state is not strictly increasing. Triggered by state 49.98 (previous state: 50.01) with last_updated set to 2026-03-07T04:10:32.027492+00:00. Please create a bug report at https://github.com/home-assistant/core/issues?q=is%3Aopen+is%3Aissue+label%3A%22integration%3A+mqtt%22

Entity sensor.routeur_ecs_temperature_du_triac from integration mqtt has state class total_increasing, but its state is not strictly increasing. Triggered by state 16.9 (previous state: 17.0) with last_updated set to 2026-03-07T04:11:44.530511+00:00. Please create a bug report at https://github.com/home-assistant/core/issues?q=is%3Aopen+is%3Aissue+label%3A%22integration%3A+mqtt%22

(07-03-2026, 10:33 PM)michy a écrit : Bonjour,

 mise à part les accents qui sont convertis, en caractères échappés avec \x suivi d'un code hexa sur 2 caractères [situation normale : "Intensit\xc3\xa9 M"  pour "Intensité T"]

dans la partie de code :

Code :

  char state_class[60];
  snprintf(DiscoveryTopic, sizeof(DiscoveryTopic), "%s%s/%s_%s/%s", PrefixMQTT, SSR, MQTTdeviceName.c_str(), VarName.c_str(), "config");
  snprintf(UniqueID, sizeof(UniqueID), "%s_%s", MQTTdeviceName.c_str(), VarName.c_str());
  snprintf(ValTpl, sizeof(ValTpl), "{{ value_json.%s|default(0)|round(%s)}}", VarName.c_str(), Round.c_str()); // le compilateur estime 24 caractères par string
  if (Unit == "Wh" || Unit == "kWh")
    snprintf(state_class, sizeof(state_class), "\"state_class\":\"total_increasing\",");
  else if (Unit == "W" || Unit == "kW")
    snprintf(state_class, sizeof(state_class), "\"state_class\":\"measurement\",");
  // Ajout de unit_class pour HA Core
  snprintf(value, sizeof(value), "{\"name\": \"%s\",\"uniq_id\": \"%s\",\"stat_t\": \"%s\",\"device_class\": \"%s\",\"unit_of_meas\": \"%s\",\"unit_class\":\"%s\",%s\"val_tpl\": \"%s\",\"device\": %s, \"availability_topic\": \"%s\"}", TitleName.c_str(), UniqueID, StateTopic, Class.c_str(), Unit.c_str(), Class.c_str(), state_class, ValTpl, DEVICE, AvailableTopic);

si on n'est pas sur un cas Unit en Wh, kWh, W ou kW, la variable  "state_class" n'est pas initialisée, (les cas qui posent problèmes sont des unités V, A et Hz)

juste changer pour initialiser la chaine comme étant vide:

Code :

  char state_class[60] = {0};

  dans la 17.06, c'était traité par   sprintf(state_class, "%s", "");

ça colle avec l'IA : Un buffer mal initialisé avant construction du JSON