nRF52840 Preview DK

RE: nRF52840 Preview DK

Roger Clark — Wed, 25 Jan 2017 08:48:25 GMT

No worries.

RE: nRF52840 Preview DK

ovrebekk — Wed, 25 Jan 2017 07:32:10 GMT

We should have more news later this year, so stay tuned ;)

RE: nRF52840 Preview DK

Roger Clark — Tue, 24 Jan 2017 10:12:48 GMT

Thanks

I attended the nRF52 seminar in Melbourne (Australia) and I remember was some information about future products in the nRF5 series.

RE: nRF52840 Preview DK

ovrebekk — Tue, 24 Jan 2017 09:43:15 GMT

Hi Roger

We don't have any plans to add long range support to the nRF52832, no, but I am sure there will be more devices that support it in the future ;)

RE: nRF52840 Preview DK

Roger Clark — Mon, 23 Jan 2017 21:20:04 GMT

Thanks Torbjörn

I wasn't sure whether the data rate was implemented in the hardware.

BTW. Do you know if the nRF52832 will be updated to include those data rates, or whether the nRF52840 will be the only Nordic device to provide the low data rate facility ?

RE: nRF52840 Preview DK

ovrebekk — Mon, 23 Jan 2017 12:46:03 GMT

Hi Roger

Just to clarify, the Bluetooth specification only require the maximum output power to be within a certain range. For BT4.2 and earlier this was between -20 to 10 dBm, and this was extended to between -20 to 20dBm for BT5.0.

The reason the nRF52832 is not fully compatible (as you hint at) is the lack of the "coded" 125kbps and 500kbps radio modes. These modes required a hardware change, and we didn't have time to get that into the nRF52832.

The 2Mbps mode is present in the nRF52832, so you can achieve high throughput, but for the maximum possible range you want the long range modes and 4dB increased output power available in the nRF52840.

RE: nRF52840 Preview DK

Roger Clark — Sat, 21 Jan 2017 09:41:46 GMT

If you need long range, you must use the nRF52840 as the nRF52832 does not have the high power transmitter needed to meet the full Bluetooth 5 specification.

I think from a technical standpoint the nRF52832 could probably operate at the lower data rate needed for long range operation. But when I asked a Nordic representative about this, they told me that the lower data rate would not get implemented in the nRF52832 - it would only be available on the nRF52840