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SGP40 sensor start-up fix (#2178)

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Keith Burzinski 2021-09-08 16:42:35 -05:00 committed by GitHub
parent f09aca4865
commit faf1c8bee8
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2 changed files with 13 additions and 5 deletions
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17
esphome/components/sgp40/sgp40.cpp
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@ -78,27 +78,28 @@ void SGP40Component::setup() {
}
void SGP40Component::self_test_() {
ESP_LOGD(TAG, "selfTest started");
ESP_LOGD(TAG, "Self-test started");
if (!this->write_command_(SGP40_CMD_SELF_TEST)) {
this->error_code_ = COMMUNICATION_FAILED;
ESP_LOGD(TAG, "selfTest communicatin failed");
ESP_LOGD(TAG, "Self-test communication failed");
this->mark_failed();
}
this->set_timeout(250, [this]() {
uint16_t reply[1];
if (!this->read_data_(reply, 1)) {
ESP_LOGD(TAG, "selfTest read_data_ failed");
ESP_LOGD(TAG, "Self-test read_data_ failed");
this->mark_failed();
return;
}
if (reply[0] == 0xD400) {
ESP_LOGD(TAG, "selfTest completed");
this->self_test_complete_ = true;
ESP_LOGD(TAG, "Self-test completed");
return;
}
ESP_LOGD(TAG, "selfTest failed");
ESP_LOGD(TAG, "Self-test failed");
this->mark_failed();
});
}
@ -154,6 +155,12 @@ int32_t SGP40Component::measure_voc_index_() {
*/
uint16_t SGP40Component::measure_raw_() {
float humidity = NAN;
if (!this->self_test_complete_) {
ESP_LOGD(TAG, "Self-test not yet complete");
return UINT16_MAX;
}
if (this->humidity_sensor_ != nullptr) {
humidity = this->humidity_sensor_->state;
}

1
esphome/components/sgp40/sgp40.h
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@ -68,6 +68,7 @@ class SGP40Component : public PollingComponent, public sensor::Sensor, public i2
int32_t seconds_since_last_store_;
SGP40Baselines baselines_storage_;
VocAlgorithmParams voc_algorithm_params_;
bool self_test_complete_;
bool store_baseline_;
int32_t state0_;
int32_t state1_;