NRF5340DK can use as beacon sensor transmitter?

[Thamil]

Hi connection,

I am trying to build indoor position system, Find the location, Find the direction and Distances project. can you suggest it is possible in NRF5340DK ?

1. NRF5340DK can use as beacon sensor transmitter?

2. NRF5340DK can use as beacon sensor Receiver?

3. Please suggest beacon sensor (TX) low cost part number for interfacing with nrf5340dk (RX).

or Please suggest procedure how to develop indoor position asset tracking (navigate) project.

any example available? any document ?

[Simonr]

Hi

Yes, all the use cases you mention are possible to do with an nRF5340 (and nRF5340 DK). In Bluetooth 5.1, the Direction Finding using Angle of Arrival was introduced, which is designed specifically for indoor locating applications. We have sample projects of this available here:

• Direction Finding connectionless beacon
• Direction Finding connectionless locator

Please note that the locator device here will require an antenna array to do the antenna switching. Insight SiP's AoA Demo Kit for example uses an antenna array designed by us that you can use for this. Just so you know, the Direction Finding will require you to develop an AoA algorithm that Nordic Semiconductor won't provide as it's necessary to convert the received IQ data into vector form to be reviewed and used properly. We don't have have any specific sample code showing this, but you can check out this page for information on the various formulas used to translate IQ data between polar and rectangular form.Users are expected to implement this themselves, or get help from a third party. We have third party partners that deliver the full package of beacon, antenna array, software as well as the direction finding algorithm like what U-Blox does with the XPLR AOA kits: https://www.u-blox.com/en/product/xplr-aoa-3-kit 

Best regards,

Simon