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IWR1443BOOST: Fluid level sensing demo,will the code work on IWR1642 boost or IWR6843 EVM

Krishna Kumar4
Expert 1565 points
Part Number: IWR1443BOOST
Other Parts Discussed in Thread: IWR1443, IWR1642, IWR6843, TIDEP-0091

I have a requirement where we need two separate functionalities, one device needs to classify,track and count objects (IWR1642) and the second device needs to measure a liquid level in a container (iwr1443).  When it is implemented it will be in two separate locations using separate PCB's.

However for application development.

I am wondering whether  a single board/chipset can be used  for both these functionalities? or is the level measurement works only with IWR1443? is it because of the antenna design or is it something else specific to the chipset i.e the extra transmitter.

If I need these two functionalities, should I be ordering these two boards separately? or Can the IWR6843 EVM be used to run both these codes?

  • 0
    TI__Guru 50240 points
    Hi Krishna,

    I am trying to understand what you are trying to use the IWR1642 for in this application, would you be able to discuss more about the objects you are trying to count and classify? Are they also in the liquid you are trying to measure?

    IWR1443 is the recommended device for level sensors due to its low power as demonstrated in the TIDEP-0091. There is also a high accuracy lab available on the resource explorer available for both IWR1443 and IWR1642 which is available here: dev.ti.com/.../

    Neither of these are yet compatible with IWR6843.

    The biggest reason IWR1443 is recommended is due to the lower power consumption. The IWR1642 has an on-chip DSP which the IWR1443 does not possess.


    Cheers,
    Akash
  • 0 in reply to Akash Gondalia
    Expert 1565 points

    Hello Akash

    Many thanks for your reply. The requirement is to identify location (X,Y co-ordinates) of multiple objects on ground (elevation is NOT required), the objects have to be classified and tracked. There is also a separate unit in the same vicinity which will be just measuring the liquid level, this unit will not be classifying anything. Low power consumption is NOT a  requirement .

    For ease of hardware development and code development, I am wondering whether a pair of boards of the same chipset can be used for these two scenarios. If possible then which chipset will that be?

    From your answer, I deduct high accuracy range measurement is possible even with iwr1642.

    So using two IWR1642 boards, both the conditions can be satisfied for my use case - is my assumption correct.

    on a separate note

    I noticed that IWR1443 has an extra transmitter and a different antenna position which I assume allows it to provide resolution in the elevation plane? Is my  assumption correct.

    Can you please explicitly confirm whether IWR1443 can or can't, track and classify detected objects on ground?

  • 0 in reply to Krishna Kumar4
    TI__Guru 50240 points
    Hi Krishna,

    IWR1443 does not have a DSP core but does have an FFT accelerator. What this means is that the IWR1443 will be able to generate a point-cloud of object data which includes information about position and velocity for different objects. The DSP in the IWR1642 will be able to take that point-cloud and track and classify it further. This could mean clustering points to tell if an object is a living thing or a static object.

    It sounds like for your application you will want at least one IWR1642 and either IWR1642 or IWR1443 for the level sensing portion.


    Cheers,
    Akash