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Check DHT sensor exists before publishing (#850)

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Fixes https://github.com/esphome/issues/issues/841
This commit is contained in:
Otto Winter 2019-11-12 19:04:11 +01:00
parent 74878276fc
commit 7c0d777173
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GPG key ID: DB66C0BE6013F97E
1 changed files with 8 additions and 4 deletions
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12
esphome/components/dht/dht.cpp
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@ -47,8 +47,10 @@ void DHT::update() {
if (error) {
ESP_LOGD(TAG, "Got Temperature=%.1f°C Humidity=%.1f%%", temperature, humidity);
this->temperature_sensor_->publish_state(temperature);
this->humidity_sensor_->publish_state(humidity);
if (this->temperature_sensor_ != nullptr)
this->temperature_sensor_->publish_state(temperature);
if (this->humidity_sensor_ != nullptr)
this->humidity_sensor_->publish_state(humidity);
this->status_clear_warning();
} else {
const char *str = "";
@ -56,8 +58,10 @@ void DHT::update() {
str = " and consider manually specifying the DHT model using the model option";
}
ESP_LOGW(TAG, "Invalid readings! Please check your wiring (pull-up resistor, pin number)%s.", str);
this->temperature_sensor_->publish_state(NAN);
this->humidity_sensor_->publish_state(NAN);
if (this->temperature_sensor_ != nullptr)
this->temperature_sensor_->publish_state(NAN);
if (this->humidity_sensor_ != nullptr)
this->humidity_sensor_->publish_state(NAN);
this->status_set_warning();
}
}