Hi balloon-89412, Thanks for your inquiry. First of all BMP388 has been discontinued. Please see the attached PDN for more information. Please switch to BMP390, or the water-resistant version of BMP388 which is so called BMP384, or the new upcoming BMP580. BMP388 has pressure operating range from 300hPa to 1250hPa with full accuracy. Your application with pressure of 48.82hPa is out of BMP388 operating range. So even BMP388 may not get damaged at such high altitude, its performance or accuracy is not guaranteed. Thanks. ... View more

Hi, Thank you for your comment. It is a typo on page 23 of BMP280 datasheet. The register address (MSB/LSB/XLSB) for UT [20bit] should be 0xFA / 0xFB / 0xFC[7:4], not 0xF7 / 0xF8 / 0xF9[7:4].  And the register address (MSB/LSB/XLSB) for UP [20bit] should be 0xF7 / 0xF8 / 0xF9[7:4], not 0xFA / 0xFB / 0xFC[7:4]. Since BMP280 has been discontinued, we are unable to update its datasheet to fix this typo. Thanks. ... View more

Hi, Please send me a private message that includes the following information: 1. Which Bosch sensors are you going to use with the BSXFull library? 2. Legal name and address of your company. 3. The person's name and title in your company who will sign the NDA and SLA. 4. The part number of the processor or MCU that you are going to use to talk to Bosch sensors and the IDE version that you are going to integrate BSXFull library into. Then we will go from there. Thanks. ... View more

Hi, Thanks for your inquiry. BSXLite library is a free package for users to quickly evaluate the basic performance of the sensor fusion algorithm using Bosch sensors. In order to get BSXFull library package users need to go through legal process such as NDA and SLA (software license agreement). Then users may need to pay licensing fee depending on each case. This means that BSXFull library may not be free of charge. However, we have BSXFull already embedded in BNO055 (BSX3) and BHI260AP (BSX4). Users can directly use these smart sensors to benefit the sensor fusion performance without the need of legal process and pricing. It can also reduce users' SW development efforts and time-to-market. Thanks. ... View more

Hi, Thanks for your inquiry. BMM150 is a 3-axis magnetometer. With a few full figure-8 like rotations in 3D space BMM150 data will be sitting on the surface of a sphere or a ellipsoid. Then you can develop or search for an algorithm to do auto-calibration and determine the three offsets of BMM150 x/y/z respectively. Then you can apply these offsets to future BMM150 data which means that this will bring the shifted sphere or ellipsoid to the origin. Then you can obtain the heading angle with respect to earth magnetic north by using atan(y/x) formula. This assumes that BMM150 only rotates on a flat or leveled platform. If BMM150 is tilting during operation, then you need a 3-axis accelerometer to work with BMM150 to get accurate heading. Bosch BNO055 is a 9-axis sensor with sensor fusion algorithm running inside. It has BMM150 inside and it can do auto calibration for BMM150. When you choose eCompass mode or NDOF mode, BNO055 will directly output heading angle at 100Hz sampling rate. More details can be found online at https://www.youtube.com/watch?v=Bw0WuAyGsnY. If you need lower current consumption then you can consider BHI260AP + BMM150 two-chip solution. There is a declination angle between magnetic north and geographic north (or true north). This angle is different at each location on earth. With the help of GPS you should be able to find out this angle at your current location. Then you can add or subtract this angle from the heading angle output of BMM150 with respect to magnetic north to get the heading with respect to true north. Thanks. ... View more