LiDAR Lite V3HP retriggering distance measurement needed for proper distance value

Sensors Distance
1

Hi,

I’ve problem with LiDAR Lite V3HP sensor.

Ido need to retrigger measurement on sensor to get proper distance value in cm, once the object has changed position.

Example:

  1. Object is 2,5m away from sensor - sensor is returning proper value

  2. Move object to 20cm away from sensor

  3. Trigger distance measurement - sensor is returning 100cm!

  4. Retrigger measurement - sensor is returning proper value (20 cm).

Did you meet with such a behavior before?

BTW. I tried to clear 0x0F and 0x10 register before triggering distance measurement and it did not help.

2

I suspect the code being used is averaging/bias correcting; try using the “distanceContinuous” portion of the code found here https://github.com/garmin/LIDARLite_Ard … HP_I2C.ino - from there you can alter the code as you need it

Hope this helps, and happy sparking!

3

I’ve had a look into code, which you sent.

It was a good shot, but unfortunately not in my case:)

Code which I’m using is from [here. It’s inside Lidar_Lite.py file.

In the end, get_distance from python lib is doing the same as distanceContinuous from code repository, which you sent.

Might it be that there is some averaging enabled in sensor firmware? I tried to look for it in [documentation, but I didn’t find anything interesting.

Do you think might it be due to connections?

Here is how I connected the LiDAR Lite with Raspberry:

UniPi Lidar connection.jpg](https://static.garmin.com/pumac/LIDAR-Lite%20LED%20v4%20Instructions_EN-US.pdf)](https://files.pythonhosted.org/packages/08/aa/681899b1b5f93cb04d31b190a0b0d60aeed321b95110d8e045e3a0bec8a9/LiDAR_Lite-0.1.0.tar.gz)