Wi-Fi Positioning with DECT NR+ modem firmware

RE: Wi-Fi Positioning with DECT NR+ modem firmware

Michal — Fri, 07 Feb 2025 19:02:26 GMT

[quote user="yali"]1. Can I introduce a Wi-Fi device (based on a nrf70 & a nrf91x1 running DECT NR+ modem firmware) to nRF Cloud as an IP device directly? Or would I need a separate Gateway device (for example a Raspberry Pi with a SIM card and IP address) in the middle that ensure connecting to the cloud? [/quote]

You should be able to connect directly, yes. nRF Cloud uses standard REST and MQTT APIs with libraries for our nRF91 and nRF70-series' devices. There is also CoAP, but that requires the usage of our library.

[quote user="yali"]2. In this alternative scenario, my question is whether I can use Thingy 91X or nRF9161dk as the 2nd device? I know that both have a nRF53 on board.[/quote]

nRF5340 on the nRF9160 DK is used as a J-Link debugger and the whole design is based around that. It's not easily accessible for development.

Thingy:91 X may be a better choice, although you will still require an external programmer for development (or should at least make it easier). By default the nRF5340 there runs connectivity bridge I think.

Best regards,

Michal

RE: Wi-Fi Positioning with DECT NR+ modem firmware

yali — Fri, 31 Jan 2025 09:49:48 GMT

Hi,

I mentioned above that I was planning to use Wi-Fi to connect my 2nd device to nRF Cloud. Now I have a couple more questions about connection to the cloud.

1. Can I introduce a Wi-Fi device (based on a nrf70 & a nrf91x1 running DECT NR+ modem firmware) to nRF Cloud as an IP device directly? Or would I need a separate Gateway device (for example a Raspberry Pi with a SIM card and IP address) in the middle that ensure connecting to the cloud?

Alternatively, I can use BLE on the 2nd device instead of Wi-Fi for cloud comms, as this would allow me to use the nRF Cloud gateway application on my phone.

2. In this alternative scenario, my question is whether I can use Thingy 91X or nRF9161dk as the 2nd device? I know that both have a nRF53 on board.

I would be transferring data received over DECT NR+ on the nrf91, over to the nrf53, which communicates with the "nRF Cloud Gateway" app on my phone over BLE.

I know that both have a nRF53 chip on board, but from documentation if seems like only the one in Thingy 91X is programmable, but I wasn't sure if it would be able to host this kind of implementation.

RE: Wi-Fi Positioning with DECT NR+ modem firmware

Michal — Fri, 22 Nov 2024 13:24:42 GMT

You're welcome.

Consulted with the others and it should work fine, but may require some work from your side to serialize the information and then send the serialized info instead of locally gathered.

Best regards,

Michal

RE: Wi-Fi Positioning with DECT NR+ modem firmware

yali — Thu, 21 Nov 2024 19:52:55 GMT

Thank you for the insights, much appreciated.

RE: Wi-Fi Positioning with DECT NR+ modem firmware

Michal — Thu, 21 Nov 2024 15:54:12 GMT

[quote user="yali"]Could you please elaborate on why you think device identification can be an issue? [/quote]

Just a shot in the dark about any possibility why it wouldn't work.

But I don't think that's an issue.

I have asked about it internally and will let you know when I'll have more information, but if you are able to just try it then that's a good idea.

You can maybe send the data to the PC and then use Postman, CURL or some other tool to test it against nRF Cloud.

Best regards,

Michal

RE: Wi-Fi Positioning with DECT NR+ modem firmware

yali — Wed, 20 Nov 2024 10:08:24 GMT

Locating the first device without cellular connection is my primary goal. Otherwise I think using the Location library and Wi-Fi Location Services in nRF Cloud would be the best option.

I will then use the Wi-Fi: Scan example to retrieve scan results on the first device. Transmit them over to the second device over DECT NR+. Then on the 2nd device, send over the Wi-Fi Scan data from the 1st device to nRF Cloud to retrieve the location of the 1st device.

Could you please elaborate on why you think device identification can be an issue?

RE: Wi-Fi Positioning with DECT NR+ modem firmware

Michal — Tue, 19 Nov 2024 19:05:01 GMT

The easiest way would be of course to get the first device's location with help of Wi-Fi location services in nRF Cloud and then get the first one's location on the second device from nRF Cloud, if that is a possibility by chance.

Best regards,

Michal

RE: Wi-Fi Positioning with DECT NR+ modem firmware

Michal — Tue, 19 Nov 2024 18:57:08 GMT

I think it should be doable, as long as you can provide the same input on the second device, but I would have to check that internally to be sure.

The only possible issue I can see is in how the devices get identified maybe.

Best regards,

Michal

RE: Wi-Fi Positioning with DECT NR+ modem firmware

yali — Tue, 19 Nov 2024 07:33:22 GMT

Hi Michal, yes that is the plan.

RE: Wi-Fi Positioning with DECT NR+ modem firmware

Michal — Tue, 19 Nov 2024 02:48:30 GMT

How are you going to have the second device connected to the nRF Cloud for location services? Via Wi-Fi as well?