BME680: bugfix pressure value conversion; feature temperature offset
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4da2260852
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@ -8,6 +8,8 @@ static const char TAG[] = "main";
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bmeStatus_t bme_status;
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bmeStatus_t bme_status;
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TaskHandle_t BmeTask;
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TaskHandle_t BmeTask;
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float bme_offset = (float) BME_TEMP_OFFSET;
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// --- Bosch BSEC library configuration ---
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// --- Bosch BSEC library configuration ---
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// 3,3V supply voltage; 3s max time between sensor_control calls; 4 days
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// 3,3V supply voltage; 3s max time between sensor_control calls; 4 days
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// calibration. Change this const if not applicable for your application (see
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// calibration. Change this const if not applicable for your application (see
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@ -55,9 +57,9 @@ int bme_init(void) {
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// Switch on low-power mode and provide no temperature offset
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// Switch on low-power mode and provide no temperature offset
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return_values_init ret =
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return_values_init ret =
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bsec_iot_init(BSEC_SAMPLE_RATE_LP, 0.0f, i2c_write, i2c_read,
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bsec_iot_init(BSEC_SAMPLE_RATE_LP, bme_offset, i2c_write, i2c_read,
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user_delay_ms, state_load, config_load);
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user_delay_ms, state_load, config_load);
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if ((int)ret.bme680_status) {
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if ((int)ret.bme680_status) {
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ESP_LOGE(TAG, "Could not initialize BME680, error %d",
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ESP_LOGE(TAG, "Could not initialize BME680, error %d",
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(int)ret.bme680_status);
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(int)ret.bme680_status);
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@ -79,7 +81,7 @@ void output_ready(int64_t timestamp, float iaq, uint8_t iaq_accuracy,
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bme_status.temperature = temperature;
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bme_status.temperature = temperature;
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bme_status.humidity = humidity;
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bme_status.humidity = humidity;
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bme_status.pressure = pressure;
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bme_status.pressure = (pressure / 100.0); // conversion Pa -> hPa
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bme_status.iaq = iaq;
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bme_status.iaq = iaq;
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}
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}
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@ -11,7 +11,7 @@
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// Payload send cycle and encoding
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// Payload send cycle and encoding
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#define SEND_SECS 30 // payload send cycle [seconds/2] -> 60 sec.
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#define SEND_SECS 30 // payload send cycle [seconds/2] -> 60 sec.
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#define PAYLOAD_ENCODER 2 // payload encoder: 1=Plain, 2=Packed, 3=CayenneLPP dynamic, 4=CayenneLPP packed
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#define PAYLOAD_ENCODER 3 // payload encoder: 1=Plain, 2=Packed, 3=CayenneLPP dynamic, 4=CayenneLPP packed
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// Set this to include BLE counting and vendor filter functions
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// Set this to include BLE counting and vendor filter functions
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#define VENDORFILTER 1 // comment out if you want to count things, not people
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#define VENDORFILTER 1 // comment out if you want to count things, not people
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@ -70,6 +70,9 @@
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#define DISPLAYREFRESH_MS 40 // OLED refresh cycle in ms [default = 40] -> 1000/40 = 25 frames per second
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#define DISPLAYREFRESH_MS 40 // OLED refresh cycle in ms [default = 40] -> 1000/40 = 25 frames per second
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#define HOMECYCLE 30 // house keeping cycle in seconds [default = 30 secs]
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#define HOMECYCLE 30 // house keeping cycle in seconds [default = 30 secs]
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// Settings for BME680 environmental sensor (if present)
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#define BME_TEMP_OFFSET 5.0f // Offset sensor on chip temp <-> ambient temp [default = 5°C]
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// OTA settings
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// OTA settings
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#define USE_OTA 1 // Comment out to disable OTA update
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#define USE_OTA 1 // Comment out to disable OTA update
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#define WIFI_MAX_TRY 5 // maximum number of wifi connect attempts for OTA update [default = 20]
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#define WIFI_MAX_TRY 5 // maximum number of wifi connect attempts for OTA update [default = 20]
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