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esp32_Adafruit_BME280_Library
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Merge pull request #56 from dirkmueller/master 

Sign-extend Humidity Calibration H4/H5 data (Fixes #44)
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Limor "Ladyada" Fried 2019-12-29 02:34:42 -05:00 committed by GitHub
parent 2a23df09f3 2149447f01
commit 7fa7054122
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1 changed files with 2 additions and 2 deletions
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4
Adafruit_BME280.cpp
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@ -369,9 +369,9 @@ void Adafruit_BME280::readCoefficients(void) {
_bme280_calib.dig_H1 = read8(BME280_REGISTER_DIG_H1);
_bme280_calib.dig_H2 = readS16_LE(BME280_REGISTER_DIG_H2);
_bme280_calib.dig_H3 = read8(BME280_REGISTER_DIG_H3);
_bme280_calib.dig_H4 = (read8(BME280_REGISTER_DIG_H4) << 4) |
_bme280_calib.dig_H4 = ((int8_t)read8(BME280_REGISTER_DIG_H4) << 4) |
(read8(BME280_REGISTER_DIG_H4 + 1) & 0xF);
_bme280_calib.dig_H5 = (read8(BME280_REGISTER_DIG_H5 + 1) << 4) |
_bme280_calib.dig_H5 = ((int8_t)read8(BME280_REGISTER_DIG_H5 + 1) << 4) |
(read8(BME280_REGISTER_DIG_H5) >> 4);
_bme280_calib.dig_H6 = (int8_t)read8(BME280_REGISTER_DIG_H6);
}