Radar sensor Forum Discussions

Problem description:OSError: /usr/..libradar_sdk.so: cannot open shared object file: No such file or directory  (PS:full context in the end)

Problem generated from: I try to config this radar to collect data by running python script on a Raspberry Pi 4B,  but this error came out, I tried solutions all failed including:
1.add working path or lib path folder to ~/.bashrc or LD_LIBRARY_PATH or /etc/profile or /etc/ld.so.conf; even just copy the lib file to PATH like /usr/lib etc; meanwhlie I am pretty sure this .so file is in right path and it does exists. And the error is always the same: No such file or directory.
2.change newer verison raspberry pi operating system; use the libradar_sdk.so in linux_raspi(32bit) in official sdk and cmd info says error ELF32bit meaning the .so file was not correponding to the OS bits. 
3.change libradar_sdk.so to libsdk_avian.so, use the latest sdk's counterparts(linux_x64)
4.I previously used the same python scripts on windows 10, and it can work very well even can work in win11 on raspberry4B. The only difference is in Avian.py it depends on libradar_sdk.dll instead of libradar_sdk.so. And as the problem mentioned before, it just can not find this .so file.

Here's my develop situation:
Radar device:BGT60ATR24C
radar_sdk version:3.3.0 (latest 3.5.1)
firstly pip installed: ifxAvian-3.3.0-py3-none-any.whl
related sdk python scripts: main.py(just init_radar and get_frame very simple codes)  Avian.py   Common.py
the OS version: linux raspberry pi 5.10.63 aarch64(python 3.9.2 built-in) 

FULL Cmd Error description:

Traceback (most recent call last):
File "/home/pi/Desktop/PPG/ifxAvian/data_collect_V31.py", line 31, in <module>
from ifxAvian import Avian
File "/usr/local/lib/python3.9/dist-packages/ifxAvian/Avian.py", line 101, in <module>
class Device():
File "/usr/local/lib/python3.9/dist-packages/ifxAvian/Avian.py", line 136, in Device
@handle_errors(dll())
File "/usr/local/lib/python3.9/dist-packages/ifxAvian/Common.py", line 53, in inner
cache[func] = func(*args, **kwargs)
File "/usr/local/lib/python3.9/dist-packages/ifxAvian/Avian.py", line 55, in dll
lib = load_library("radar_sdk")
File "/usr/local/lib/python3.9/dist-packages/ifxAvian/Common.py", line 289, in load_library
dll = CDLL(find_library(libname))
File "/usr/lib/python3.9/ctypes/__init__.py", line 374, in __init__
self._handle = _dlopen(self._name, mode)
OSError: /usr/local/lib/python3.9/dist-packages/ifxAvian/libradar_sdk.so: cannot open shared object file: No such file or directory------------------
(program exited with code: 1)
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I have Distance2GoL XENSIV™ 24 GHz low-power radar shield BGT24LTR11 

In Radar GUI I am getting output and also converting it to .txt file while recording.

but how to get data directly from the serial port.

I am trying to take data without using radar GUI instead I need data directly from the Serial port 

and another question is :

can I use this Distance2GoL XENSIV™ 24 GHz low-power radar shield BGT24LTR11 with Arduino IDE

Greetings,

Could you please explain the function of the high-pass and low-pass filters in the Radar Fusion GUI tool? Are they designed for filtering the incoming receiver signal? Furthermore, how would altering these values affect the range spectrum?

Is there some link to load infineon radar sdk python  examples????

like here  - https://youtu.be/JQ3VK6Hcc7w

he uses infineon/radar/radar_sdk/sdk/py...   where to load this? only what i can see on your site - is some radar_develompent_kit .exe - but its a windows app - is there some linux python code like in this video? why you have no links and zero information about this?  maybe you have git repository for this?

Greetings,

I'm interested in connecting two BGT60LTR11AIP radars through a single SPI peripheral, with radar selection accomplished via the CS pin. Can this hardware setup support configuration and data acquisition? If so, could you provide guidance on the necessary considerations and perhaps some code examples?

Thank you!

Hi Infineon,

I found the recent demo of using  BGT60TR13C  with ESP32 for presence detection. Is it possible to share the source code of this demo?

Thank you!

BGT60TR13C   

Hi,

In the REF_BGT60LTR11AIP_MO Dave project the config.h file allows for the customisation of the sampling frequency, however this value is not used in any other function that motion_detector_init, so I was wondering how adjusting this value affects the performance. I understand it used to define the Doppler_Hz_per_bin variable but this also is only called in the motion_detector_init function.

Also, the frame interval is used in setting the RTC tick, however could you please explain why the following equation is used when setting the RTC tick:

rtc_tick_for_frame_interval =((motion_detector-> frame_interval /RTC_CLOCK_INTERVAL_MS) -1)

Thanks for your help!

Hi there,

I recently ordered the DEMO BGT60UTR11AIP and decided to test its associated RDK. However, I've encountered installation challenges with version v3.5.1. While I was able to install version 3.4.0 without any issues, the latest version indicates that I lack the necessary permissions for download. How can I successfully install the most up-to-date version?