nRF52833 DK address and RSSI

[Siddharth Venkatesh]

Hi 

I am currently working on calculating the AoA. I have 4 nRF52833 DKs and I am using three DKs as transmitters and one as the receiver and the receiver is connected to an antenna array.

I have three questions regarding it. 

1. I am trying to use three different nRF52833 DK's as transmitters. I wanted to know how to differentiate the I/Q samples of each of them. Is there some way to separate the I/Q sample data obtained by the antenna array? Is there a unique address for each of these transmitters I can use? 

2. How do I find the RSSI value of these transmitters (nRF52833 DK). I am not using BLE.

3. I am trying to make a custom board with the nRF52833 SoC and I just wanted to know if all the example programs in the SDK function are on the micro on the DK (PCA10100) or the bluetooth SoC itself. Will I lose functionality if I separate the SoC from the Development Kit? Can I still program the SoC the same way I program the DK?

Thanks in advance

[Dmitry]

Hi,

Siddharth Venkatesh said:

Is there a unique address for each of these transmitters I can use? 

There is a 64-bit DeviceID and 48-bit device MAC address, both stored in FICR, that you can use to differentiate your boards.

Siddharth Venkatesh said:

How do I find the RSSI value of these transmitters (nRF52833 DK). I am not using BLE.

Start an RSSI_START task and then read RSSISAMPLE register on your receiver.

Siddharth Venkatesh said:

Will I lose functionality if I separate the SoC from the Development Kit?

No, the DK contains a debug interface and some external peripherals (LEDs, buttons, QSIP flash etc). If you don't need any of them, you will not loose anything. Take a particular attention to board layout, especially antenna path and grounding, and provide a good power source - it's crucial for direction finding applications.

Siddharth Venkatesh said:

Can I still program the SoC the same way I program the DK?

Yes, you need to put 4 wires to an external connector, look at this topic.