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Fix DHT reading timing for SI7021 on ESP32 #6604

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merged 4 commits into from
May 30, 2024
Merged

Fix DHT reading timing for SI7021 on ESP32 #6604

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eff6a15
Fix DHT reading timing for SI7021 on ESP32
erdembey Apr 22, 2024
2ed6ab5
Merge branch 'dev' into dev
jesserockz May 29, 2024
da1cf63
Formatting
jesserockz May 29, 2024
f3a2310
Merge branch 'dev' into dev
erdembey May 29, 2024
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5 changes: 5 additions & 0 deletions esphome/components/dht/dht.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -86,9 +86,14 @@ bool HOT IRAM_ATTR DHT::read_sensor_(float *temperature, float *humidity, bool r
if (this->model_ == DHT_MODEL_DHT11) {
delayMicroseconds(18000);
} else if (this->model_ == DHT_MODEL_SI7021) {
#ifdef USE_ESP8266
delayMicroseconds(500);
this->pin_->digital_write(true);
delayMicroseconds(40);
#else
delayMicroseconds(400);
this->pin_->digital_write(true);
#endif
} else if (this->model_ == DHT_MODEL_DHT22_TYPE2) {
delayMicroseconds(2000);
} else if (this->model_ == DHT_MODEL_AM2120 || this->model_ == DHT_MODEL_AM2302) {
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