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Last activity 2017-08-23 14:49:22 +0200 by Meea

Did nrf52840 or nrf52832 support new feature in BLUETOOTH5,like (1)LE Extend ADV?(2)LE Periodic Advertising Create sync? (3)LE Coded PHY support 1M/2M ,coded?(4)Aod??

hi, I want to use BLUETOOTH for Position Service, Did nrf52840 or nrf52832 support new feature in BLUETOOTH5? like (1)LE Extend ADV?(2)LE Periodic Advertising Create sync? (3)LE Coded PHY support 1M/2M ,coded?(4)Aod??

Could ... (more)

93
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no
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no
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Last activity 2017-08-20 21:00:35 +0200 by Ali

Calibration for indoor positioning

Hi

I am using nrf52840 for indoor positioning application based on RSSI. I was wondering if somebody has a tip how to calibrate the nodes before doing the experiment.

78
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2
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2
answers
Last activity 2017-08-11 17:22:39 +0200 by Wojtek flag of Poland

Nordic nRF52840 Thermal Characteristics

Hi Nordic,

I’m H/W engineer, dedicated in development of radio circuit. I ask the question because we’d like propose your Nordice nRF52840 to our customer when replying the request of a BLE radio. So far we check ... (more)

48
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votes
1
answer
Last activity 2017-08-09 10:25:25 +0200 by Hung Bui

mbed 2 to mbed 5 sample code build error

Hi,

I have copied BLE Thermostat code from ARM mbed : https://developer.mbed.org/teams/Blue...

As this code is on mbed 2 platform, i am trying to run it on embed 5.0. Getting below error.

mbed-os\features\FEATURE_BLE ...
(more)

154
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no
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1
answer
Last activity 2017-07-14 10:18:22 +0200 by Sigurd flag of Norway

nRF52840 coded phy sensitivity

Hi,

I get RSSI values like -96 or -97 dBm before the coded PHY connection between two nRF52840 pdks drops. Are these values something expected? TI advertises sensitivity of -103 dBm in their youtube video of CC2640R2F. Are they slightly ... (more)

173
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1
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1
answer
Last activity 2017-07-12 11:46:12 +0200 by dansam

Thingy:52 node.js/Raspberry Pi demos PDK support

I would like to setup the just released RasPI demo using the Nordic-Thingy52-Nodejs repo I don't have a dongle, but 4 PDK 52840 boards and 2 Thingys.

Can I still use 1 PDK attached to the Pi instead of a dongle?

51
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1
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1
answer
Last activity 2017-07-11 13:23:00 +0200 by Bjørn Spockeli flag of Norway

nRF52840 Preview DK not appear as a removable drive.

Dear all,

I was following the "Getting started with the nRF52840 Preview Development Kit" page. But when i connect the board to the computer, the board do not appear as a removable drive, the LED1 is on, and using the ... (more)

150
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1
answer
Last activity 2017-06-13 13:08:14 +0200 by Kristin flag of Norway

Coded PHY testing

Hi,

I get the ble_app_att_mtu_throughput -example working with the coded PHY between two nRF52840 boards. Very nice, although I did not yet get the coded PHY advertising working. Just the coded PHY connection.

To understand how well the actual coded ... (more)

78
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no
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1
answer
Last activity 2017-05-31 08:40:03 +0200 by Kristin flag of Norway

Testing coded PHY with UART?

I have two nRF52840-pdk's and two laptops. I was thinking to send test strings using the following Basic setup:

       laptop1 - usb1 - pdk1 ....(coded PHY transmission)....pdk2 - usb2 - laptop2

Can I use directly some existing example codes for making this ... (more)

127
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1
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1
answer
Last activity 2017-05-29 12:23:16 +0200 by Kristin flag of Norway

nRF52840 & ble_app_att_mtu_throughput

Hi, I am trying test nRF52840-pdk throughput.

-I loaded softdevice s140_nrf52840_5.0.0-3.alpha_softdevice.hex into nRF52840-pdk using nRFgo

-Then I build (using uVision) the file ...\nRF5_SDK_13.0.0_04a0bfd\examples\ble_central_and_peripheral\experimental\ble_app_att_mtu_throughput\pca10056\s140\arm5_no_packs\ble_app_att_mtu_throughput_pca10056_s140.uvprojx

-Finally, I ... (more)

127
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1
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1
answer
Last activity 2017-04-24 15:32:57 +0200 by Sigurd flag of Norway

Nrf52840 Advertising Paket Size

Hello is this possible to send the 255 byte in the Advertising Paket ? if yes then do you have any example ?

Best Wishes

Ati

230
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4
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2
answers
Last activity 2017-04-23 01:32:33 +0200 by Daniel Wang flag of Korea, Republic of

What will the range be with a ble 5 server, but iphone with Bluetooth 4

If I used a nrf52840 bluetooth5 as a server, but customers have iPhones with Bluetooth 4.x on, will the range still be 2x or 4x, as stated by BT SIG?

Did Nordic test the range with Bluetooth 4.x ... (more)

110
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2
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1
answer
Last activity 2017-04-03 08:43:34 +0200 by Torbjørn Øvrebekk

How can I connect two nRF52840 to transfer large data files?

Hello, Would you have application that can support two nRF52840 pairing and transfer arbitrary large data files?

Thanks, Gerry

70
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no
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1
answer
Last activity 2017-02-17 14:48:46 +0200 by Kristin flag of Norway

If you change preferred PHY, does bluetooth connection break?

Let's say I have my android phone connected to the nrf52840 device via bluetooth, and let's say I change preferred phy from 2 Mbps to 125 kbps, would the connection with my phone break?

thanks

132
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4
votes
1
answer
Last activity 2017-02-16 10:41:36 +0200 by Jørn flag of Norway

sd_ble_gatts_hvx() failed: 0x8

Trying the ATT_MTU Thourughput Example with SoftDevice:

nRF5_SDK_13.0.0-1.alpha_055eef3/components/softdevice/s140/hex/s140_nrf52840_5.0.0-1.alpha_softdevice.hex

on two nRF52840 devices, when I get to the 6th step of sending '1' to the tester I get this ... (more)

221
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3
votes
1
answer
Last activity 2017-02-15 09:55:28 +0200 by embo san

Easiest way for two nRF52x devices to ping each other?

Greetings Nords, total noob here, I've got two preview nRF52840 devices (as well as the two normal nRF52 devices), I want my two preview devices to be able to ping each other, what is the easiest way to achieve ... (more)

318
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1
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1
answer
Last activity 2017-01-19 15:22:47 +0200 by Jørgen Holmefjord flag of Norway

"SEGGER_RTT_CONFIG" problem

Hey! I was trying to modify s132 ble_beacon example to s140 for my nRF52840 DK but I couldn't build it in Segger Embeded Studio. What is the problem with "SEGGER_RTT_CONFIG"?

image description

420
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2
votes
1
answer
Last activity 2017-01-19 14:08:51 +0200 by run_ar

Bluetooth 5 throughput

I see on your website that Bluetooth 5 throughput numbers are given in the graph below. And the following disclaimer is given.

"Net data throughput not including overhead such as addressing can be as high as 1.4Mbs"

I see ... (more)

382
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1
vote
1
answer
Last activity 2016-12-16 13:29:18 +0200 by Sigurd flag of Norway

Benchmarking Bluetooth 5 setup with nRF52840

Hi,

I am looking to test the performance (range, data throughput, packet drop rate etc.) of BT5 in application specific setting using nRF52840. Ideally this would be done by establishing BT5 connection between two PCs, which would be used to ... (more)

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