About FAE_CA1

FAE_CA1 · ‎06-24-2022

Hi, Please see the attached "BNO055 axis remapping.pdf" for more information. After BNO055 axis remapping the only visible axes will become device body X/Y/Z axes (not BNO055 sensor x/y/z axes) and the pitch/roll/heading definition can be found on page 4 of BNO055 quick start guide document at https://www.bosch-sensortec.com/media/boschsensortec/downloads/application_notes_1/bst-bno055-an007.pdf. Thanks.

FAE_CA1 · ‎06-23-2022

Hi, Thanks for your inquiry. BMI088 time stamp is 24-bit with 39.0625us each digit. It has three bytes 0x1A|0x19|0x18 to get max 16,777,216 LSBs and then it will roll over from 0 again. It is a free runner clock after BMI088 is powered on and it is not related to ODR setting. This is similar to Arduino millis() function. Therefore, after you get delta from the two time stamp values, you can simply multiply the delta by 39.0625us to get the timing. Thanks.

FAE_CA1 · ‎06-23-2022

Hi, Thanks for your inquiry. Please see the attached "Comparison chart between BMI055-BMI088 and BMI160-BMI270.pdf" for more information. For your application, gyro sensitivity needs to be calibrated to obtain accurate pitch and roll angles with your Kalman filtering. If you will calibrate your device one by one on a single-axis or tri-axis turn table, then you should use BMI088. Otherwise, you should use BMI270 because BMI270 has built-in gyro sensitivity calibration which is called CRT (component re-trim) feature. Thanks.

FAE_CA1 · ‎06-23-2022

Hi, BME280 thermal resistance values are as below, Junction to case: θ~JC =46 C/W Junction to ambient: θ~JA =136 C/W Thanks.

FAE_CA1 · ‎06-10-2022

Hi, Yes, please create a pull request. Thanks.

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About FAE_CA1

Re: BNO055 mounted vertically

Re: BMI088 Streaming timestamps are counting slow.

Re: BMI088 vs BMI270; which has the best long-term...

Re: what is the thermal resistance of BME280?

Re: BMI088 accelerometer noise too high

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