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fix(bme280): fix bme280_read_altitude variable and unit bugs (AEGHB-1440) #677

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fix(bme280): fix bme280_read_altitude variable and unit bugs (AEGHB-1440) #677

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6 changes: 2 additions & 4 deletions components/sensors/pressure/bme280/bme280.c
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Original file line number Diff line number Diff line change
Expand Up @@ -355,12 +355,10 @@ esp_err_t bme280_read_humidity(bme280_handle_t sensor, float *humidity)
esp_err_t bme280_read_altitude(bme280_handle_t sensor, float seaLevel, float *altitude)
{
float pressure = 0.0;
float temp = 0.0;
if (bme280_read_pressure(sensor, &temp) != ESP_OK) {
if (bme280_read_pressure(sensor, &pressure) != ESP_OK) {
return ESP_FAIL;
}
float atmospheric = pressure / 100.0F;
*altitude = 44330.0 * (1.0 - pow(atmospheric / seaLevel, 0.1903));
*altitude = 44330.0 * (1.0 - pow(pressure / seaLevel, 0.1903));
return ESP_OK;
}

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