How to get AoA with nrf 5340 dk? Choice of antenna array, and Code...

[AI-Sen]

Hello,
I would like to make a follower robot.
For this, I wanted to use the AoA to locate my phone and thus determine the direction in which the robot should go.

I'm really a beginner with Nordic Semi-Conductor tools (I was using Arduino but I can't use it for this project). I bought an nrf 5340 dk, because I saw that it supports it.

I need:
1) To find the antenna module I need.
2) To know how to make the connections with the nrf5340 dk
3) To know how to do the code that goes with it

Any help is welcome, if you have documentation or if people have done a project like this before.

[Kenneth]

Please see my reply here:
https://devzone.nordicsemi.com/f/nordic-q-a/79814/aoa-aod-using-nrf52833/330276#330276 

I am not sure of the phone support for AOA, and the antenna array is quite large.

Kenneth

[PaKa]

Have you checked if your phone supports AoA or AoD? I have not seen any doing so up until now.

[AI-Sen]

No, I don't.

How do you know?

[PaKa]

It's not supported in Android and it is not supported in iOS so if it is running any of these OSes it's not supported. If it is running another OS then you will need to check that OS. I would be really surprised if you have a phone that supports this as we have not seen any so far.

[AI-Sen]

I saw a tutorial on your site for the aoa. Where does the signal from which the nrf5340 calculates the angle of arrival come from? 

This tutoriel: developer.nordicsemi.com/.../README.html

[PaKa]

That one uses a nRF52833-DK as the transmitter and a nRF52833-DK or nRF5340-DK as a receiver. Note: you need an antenna array for one end and that is not something we sell. You can buy one from InsightSiP if you don't plan to develop your own.

[AI-Sen]

Thank you for your reply.
So I have an nRF5340-DK that I'm going to use as a receiver and I'm going to buy an nRF52833-DK.

Thanks to your advice, I looked for an antenna array and I found this one: ISP1907-LL-RS
Do you think she might be suitable?