Examples with YunmaiLib com.health.openscale.core.bluetooth.lib.YunmaiLib used on opensource projects

Example 1 with YunmaiLib

use of com.health.openscale.core.bluetooth.lib.YunmaiLib in project openScale by oliexdev.

the class BluetoothYunmaiSE_Mini method parseBytes.

private void parseBytes(byte[] weightBytes) {
    final ScaleUser scaleUser = OpenScale.getInstance().getSelectedScaleUser();
    ScaleMeasurement scaleBtData = new ScaleMeasurement();
    long timestamp = Converters.fromUnsignedInt32Be(weightBytes, 5) * 1000;
    scaleBtData.setDateTime(new Date(timestamp));
    float weight = Converters.fromUnsignedInt16Be(weightBytes, 13) / 100.0f;
    scaleBtData.setWeight(weight);
    if (isMini) {
        int sex;
        if (scaleUser.getGender() == Converters.Gender.MALE) {
            sex = 1;
        } else {
            sex = 0;
        }
        YunmaiLib yunmaiLib = new YunmaiLib(sex, scaleUser.getBodyHeight(), scaleUser.getActivityLevel());
        float bodyFat;
        int resistance = Converters.fromUnsignedInt16Be(weightBytes, 15);
        if (weightBytes[1] >= (byte) 0x1E) {
            Timber.d("Extract the fat value from received bytes");
            bodyFat = Converters.fromUnsignedInt16Be(weightBytes, 17) / 100.0f;
        } else {
            Timber.d("Calculate the fat value using the Yunmai lib");
            bodyFat = yunmaiLib.getFat(scaleUser.getAge(), weight, resistance);
        }
        if (bodyFat != 0) {
            scaleBtData.setFat(bodyFat);
            scaleBtData.setMuscle(yunmaiLib.getMuscle(bodyFat));
            scaleBtData.setWater(yunmaiLib.getWater(bodyFat));
            scaleBtData.setBone(yunmaiLib.getBoneMass(scaleBtData.getMuscle(), weight));
            scaleBtData.setLbm(yunmaiLib.getLeanBodyMass(weight, bodyFat));
            scaleBtData.setVisceralFat(yunmaiLib.getVisceralFat(bodyFat, scaleUser.getAge()));
        } else {
            Timber.e("body fat is zero");
        }
        Timber.d("received bytes [%s]", byteInHex(weightBytes));
        Timber.d("received decrypted bytes [weight: %.2f, fat: %.2f, resistance: %d]", weight, bodyFat, resistance);
        Timber.d("user [%s]", scaleUser);
        Timber.d("scale measurement [%s]", scaleBtData);
    }
    addScaleMeasurement(scaleBtData);
}