Sensors Forum Discussions

Hi everyone,

I have two Demoposition2Go boards and I would like to trigger the ramp from an external pulse (clock) signal. Is it possible?

Thank's in advance

Elia V.

Hello everyone.

I want to use mm-wave radar for vital signs detection. But I have a few questions.

1. I want to know which radar you recommend. I noticed BGT60TR13C is advertised for this application. But, I am afraid it does not work well due to not having an IQ demodulation.

2. Is there any package, code, or GUI available for this application? I saw videos, but I had a hard time finding the mentioned directories, and it was not clear if anything existed for vital sign detection.

Thanks in advance.

Hi all

I am asking a question about running the D2GL_Basics app on a debian linux device (specifically prototyping on a raspberry pi 4)

I downloaded all the files from the infineon site, used cmake, then made small changes to the d2gl_basics.c file to allow it to run on linux. specifically, this involved:

1) removing "#include <windows.h>

2)adding both "#include <string.h>" and "#include <unistd.h>"

3) changing instances of the word "boolean" to "bool"

4) changing instances of "Sleep" to "sleep" (lower case "s")

from there i was able to execute "make"

however, whenever I run ./d2gl_basics in the command line, the output seems to stop after "---fmcw: get parameter definition".

The output is stuck as if in an infinite loop. I've attached a screen shot of where it gets stuck (although this screen shot was reproduced on a windows machine)

LED's D9 shows green blue and red (indicating correct sensor readings) and LED D5 is solid yellow 

Is anyone familiar with using the d2gl on linux and know about this issue?

SIDE NOTE: I am getting low voltage warnings from the raspberry pi when i plug in the sensor, and am wondering if this may be an issue

Many thanks 

Taylor

Here is where it would get stuck...

I am using BGT60TR13C Radar. Is developing a presence detection application other than Infinion or cypress MCU possible? They are providing an application on Infineon or cypress MCU platform.. I went through their project but those are compiled code and can not port in other MCU. am I missing something or is there another way to do this? I want to use ESP32 as MCU. 

I found one git repo for this but can not able to compile on my PC. https://github.com/nepaldigitalsystems/sensor-xensiv-bgt60trxx_esp32.git

I was able to record the PDM from the IM69D130 I am wondering does infineon provide the a reference coefficient for the decimation filter? I am unable to get the noise floor to match of the EVAL AHNB IM69D130V01. What filter was used to make the acoustic specification in data sheet? How can I meet that specification? what filter design approach was used?

Hello,

I was not able to find some parameters regarding the product BGT60TR13C.

• What is the pulse repetition frequency? (the time to perform one up chirp and one down chirp).
• Is the pulse repetition frequency fixed or configurable?
• What is the transmitted RF power?
• Are the transmitted and the received RF signals mixed before sampling?
• I have read that the sampling rate is about 2 MHz and that the bandwidth is 5.5 GHz. Wouldn't it lead to aliasing?

Best regards,

Victor

I have 2 S2GO RADAR BGT60LTR11 modules. They are both in autonomous mode and just connected to a 3v3 psu. Both have the blue motion detect led on all the time.  The red direction led works. As you move towards the sensors the led goes off. No matter what I try I cannot get the sensors to stop detecting motion. The TD pin on both the sensors is permanently low (at R13). What am I doing wrong?

Hello everyone,

We are developing a product using Infineon BGT60TR13C radar sensor. We are able to use the SDK to get the range, velocity and presence detection from the sensor and even Azimuth angle. However, when trying to get the angle in vertical plane, we are facing variations in the data and it cannot be used in a real application.

Upon study, we discovered that there is a phase shift between Rx2 and Rx3 pair that causes this inaccuracy and can be adjusted by applying calibration matrix.

1. We did not find any references in the code on how and where to apply the calibration matrix. We would appreciate if we can be directed to the right example / algorithm.

2. Does this calibration matrix needs to be applied every time to the radar sensor or is it a one-time operation? Should this calibration be part of application firmware or only a single time?

We already studied these posts below but unfortunately these don't indicate what is a calibration matrix and where and how to apply it.

https://community.infineon.com/t5/Radar-sensor/BGT60TR13C-RX-phase-shift/td-p/383375
https://community.infineon.com/t5/Radar-sensor/BGT60TR13C-RX-phase-shift/td-p/355533

I downloaded the sample apps and am able to confirm that connection to the USB port works.
However, when I try the python code at Infineon/magnetic-3d-mini-controller (github.com)
the processing stops at the file magnetic-3d-mini-controller/m97_sensorCom.py at master · Infineon/magnetic-3d-mini-controller (github.com)

line 49 which is: msg_b = serial.read(8)

I followed the steps in the Readme.md file and I am stuck at this line.

Hello,

I'm looking for dev kits and reference design kits. Is there a page or link to a page where one can browse available kits?

The pages I've found so far are focused on product selection and do not help locate kits unless the part number is already known. In one case (a ref design for a keyboard) I had what looked like kit part number but it was a circular dead end.

Specifically, I'd like ref designs for a Bluetooth keyboard and a Bluetooth mouse to use as I learn the Modus Tool Box.

#PSoC4#,#PSoC6# and Bluetooth Low Energy and maybe even USB are where my head is at right now. I did see some material about 2GoSensors (and kits) that is of interest to me. However, again, it is not clear how to browse these kits.

Thank you

Tim Miner