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[mqtt] add missing precision in HA autodiscovery (#14010)

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This commit is contained in:
Rodrigo Martín
2026-02-21 05:20:27 +01:00
committed by GitHub
parent f77da803c9
commit 2eac106f11
3 changed files with 7 additions and 0 deletions
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1
esphome/components/mqtt/mqtt_const.h
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@@ -243,6 +243,7 @@
X(MQTT_STATE_VALUE_TEMPLATE, "stat_val_tpl", "state_value_template") \
X(MQTT_STEP, "step", "step") \
X(MQTT_SUBTYPE, "stype", "subtype") \
X(MQTT_SUGGESTED_DISPLAY_PRECISION, "sug_dsp_prc", "suggested_display_precision") \
X(MQTT_SUPPORTED_COLOR_MODES, "sup_clrm", "supported_color_modes") \
X(MQTT_SUPPORTED_FEATURES, "sup_feat", "supported_features") \
X(MQTT_SWING_MODE_COMMAND_TEMPLATE, "swing_mode_cmd_tpl", "swing_mode_command_template") \

4
esphome/components/mqtt/mqtt_sensor.cpp
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@@ -49,6 +49,10 @@ void MQTTSensorComponent::send_discovery(JsonObject root, mqtt::SendDiscoveryCon
root[MQTT_DEVICE_CLASS] = device_class;
}
if (this->sensor_->has_accuracy_decimals()) {
root[MQTT_SUGGESTED_DISPLAY_PRECISION] = this->sensor_->get_accuracy_decimals();
}
const auto unit_of_measurement = this->sensor_->get_unit_of_measurement_ref();
if (!unit_of_measurement.empty()) {
root[MQTT_UNIT_OF_MEASUREMENT] = unit_of_measurement;

2
esphome/components/sensor/sensor.h
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@@ -48,6 +48,8 @@ class Sensor : public EntityBase, public EntityBase_DeviceClass, public EntityBa
int8_t get_accuracy_decimals();
/// Manually set the accuracy in decimals.
void set_accuracy_decimals(int8_t accuracy_decimals);
/// Check if the accuracy in decimals has been manually set.
bool has_accuracy_decimals() const { return this->sensor_flags_.has_accuracy_override; }
/// Get the state class, using the manual override if set.
StateClass get_state_class();