Other Parts Discussed in Thread: IWR6843AOP, IWR1642, IWRL6432, IWR6843, DCA1000EVM
I've been asked by a friend to help select parts for a small commercial people-counting application. I have some hardware experience, but not enough to confidently assess the options. He'd like to track people's movements through a set of three outdoor structures that are about 6' long, 8' wide and 10' high, arranged about 2' apart, such that together they form a tunnel, 8' wide, 10' high and 22' long. There's a good chance there will be several people within each of the three structures at once, and he'd like to be able to count them and eventually get an idea of where they pause and where they just walk through.
To me it looks like the IWR6843AOP is ideal, based on the 3D people counting for entryways video found here: https://training.ti.com/3d-people-counting-entryways?keyMatch=3D%20PEOPLE%20COUNTING%20ENTRYWATS, and the design guide here: https://www.ti.com/lit/ug/tidue71d/tidue71d.pdf?ts=1675616480413
However, I've also had other modules recommended to me, including IWRL6432, and seen the IWR1642 demo video here: https://training.ti.com/mmwave-sensors-people-counting-demo-english?keyMatch=PEOPLE%20COUNTING. These both seem to have similar capabilities to the IWR6843, but again, I don't have the technical knowledge to make a confident call.
My questions:
- Am I correct to understand that 6843 is a good candidate?
- Are there advantages or disadvantages compared to other options?
- If we're trying to reproduce what we see in the 3d people counting video, do we need the DCA1000EVM? Is this needed for other EVMs?
Once we've settled on a chip he will be engaging an engineer local to him to design a hardware package.
Thanks in advance for any advice you can offer.
