There are multiple IMU samples in each frame data, but there is only one time_stamp. Can I get accurate time_stamp for each IMU sample?

Thanks,

For example, In the following example, there are 3/4 IMU samples in each frame data:
———————————————————————————
DUO Frame Timestamp:  18203.1 ms
Sample #1
  Accelerometer: [ 0.03320, -0.06665, -0.54492]
  Gyro:      [ 0.48065,  1.05286,  0.26703]
  Temperature:  31.026472 C
Sample #2
  Accelerometer: [ 0.03564, -0.07397, -0.55005]
  Gyro:      [-0.03052,  1.02234,  0.44250]
  Temperature:  31.120588 C
Sample #3
  Accelerometer: [ 0.04443, -0.06958, -0.54248]
  Gyro:      [ 0.07629,  1.12915,  0.32043]
  Temperature:  31.214706 C
Sample #4
  Accelerometer: [ 0.03833, -0.07227, -0.54810]
  Gyro:      [ 0.36621,  1.15204,  0.48065]
  Temperature:  31.214706 C
———————————————————————————
DUO Frame Timestamp:  18235.8 ms
Sample #1
  Accelerometer: [ 0.03345, -0.07324, -0.54199]
  Gyro:      [ 0.41199,  1.35803,  0.29755]
  Temperature:  30.979412 C
Sample #2
  Accelerometer: [ 0.03882, -0.07129, -0.53784]
  Gyro:      [ 0.25177,  1.25885,  0.37384]
  Temperature:  31.167648 C
Sample #3
  Accelerometer: [ 0.04102, -0.06934, -0.54785]
  Gyro:      [ 0.22888,  1.32751,  0.50354]
  Temperature:  31.167648 C
———————————————————————————

     

Hello,

You are probably not using the latest software release.
In v1.0.80.20 of DUO SDK, each IMU sample is individually time-stamped:

// DUO IMU data sample
typedef struct
{
  uint32_t timeStamp;        // DUO IMU time stamp in 100us increments
  float tempData;            // DUO temperature data in degrees Centigrade
  float accelData[3];        // DUO accelerometer data (x,y,z) in g units
  float gyroData[3];      // DUO gyroscope data (x,y,z) id degrees/s
}DUOIMUSample;

     

Thanks. Problem solved