BMI055 - BOSCH

BMI055 Frequently Asked Questions (FAQs)

• What is the recommended power-on sequence for BMI055?
  The recommended power-on sequence is to first apply VDDIO, then VDD, and finally enable the sensor by setting the EN pin high. This ensures proper initialization and prevents damage to the device.
• How do I configure the BMI055 for low-power mode?
  To configure the BMI055 for low-power mode, set the LP_MODE bit in the CTRL_REG1 register to '1'. This reduces the current consumption, but note that it also reduces the sensor's bandwidth and accuracy.
• What is the purpose of the INT1 and INT2 pins on the BMI055?
  The INT1 and INT2 pins are interrupt pins that can be configured to trigger on specific events, such as data ready, FIFO full, or motion detection. They can be used to wake up a microcontroller from sleep mode or to trigger an interrupt service routine.
• How do I calibrate the BMI055?
  The BMI055 does not require calibration in the classical sense. However, it's recommended to perform a self-test procedure to ensure the sensor is functioning correctly. This involves setting the SELF_TEST bit in the CTRL_REG1 register and verifying the output values.
• What is the maximum sampling rate of the BMI055?
  The maximum sampling rate of the BMI055 depends on the ODR (Output Data Rate) setting. The highest ODR setting allows for a sampling rate of up to 1600 Hz for the accelerometer and 200 Hz for the gyroscope.