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IWR6843AOPEVM: High Accuracy Demo

TI-CSC
Genius 13215 points
Part Number: IWR6843AOPEVM


Tool/software:

Hello E2E experts,

Good day.

I was able to get the demo working and  below are my queries:

1. Would you be willing to give me pointers on how I can be sure this is accurate?

2. Or run the lab once so I don't have a continuous reading?

3. How can I interface this so I can have an esp32 microcontroller reading the data and calculating a percent fill level based on the readings? For interfacing the esp32 to the iwr6843aopevm so that it can read the data I was planning on using the I2C pins which is located on the radar module itself. Just tough to know where to start sometimes as I am still in the learning process.

4. Also, I would love to be able to see if I am able to add more than just 3-point readings as it describes.

Regards,

TICSC

  • 0
    TI__Genius 11990 points

    Hi

    Thanks for your query. Please allow us a couple of days to respond

    Regards

  • 0
    TI__Expert 4330 points

    Hi,

    TI-CSC said:
    Would you be willing to give me pointers on how I can be sure this is accurate?

    The level sensing demo uses a technique called zoomFFT which is basically interpolating around the FFT peaks to achieve a finer resolution in terms of the actual object distance.

    To validate it, you can test the device in a proper environment with a strong reflector to understand the accuracy and the calculated distance.

    TI-CSC said:
    Or run the lab once so I don't have a continuous reading

    can you elaborate further on this?

    TI-CSC said:
    How can I interface this so I can have an esp32 microcontroller

    You can check the device datasheet to first understand the supported communication interfaces. Then you can proceed with the appropriate connections along with the program to communicate from esp32. You can look at UART maybe as it's pretty straightforward.

    TI-CSC said:
    Also, I would love to be able to see if I am able to add more than just 3-point readings as it describes.

    Yes, it is possible. You need to modify the source code where the peak finding is happening and ensure you store more number of peaks and trigger the zoom fft accordingly.

    Regards,

    Sharan

  • 0 in reply to Sharan S S
    TI__Genius 13215 points

    Hello Sharan,

    Sharan S S said:
    Yes, it is possible. You need to modify the source code where the peak finding is happening and ensure you store more number of peaks and trigger the zoom fft accordingly.

    For the source code which file is that based on the high accuracy visualizer, as well as what should i be using to get the raw data to be able to possible send that.

    Regards,

    TICSC

  • 0 in reply to TI-CSC
    TI__Expert 4330 points

    Hi,

    Please look at RADARDEMO_highAccuRangeProc_priv.c and other related files from the source code.

    Regards,

    Sharan