# 25 questions

Tagged
• x
64
views
1
vote
1

## nRF52840 nrf528xx-ble-throughput-demo

Hello, I am trying to compile this demo with Segger Embedded Studio but compilation always fail with the error "Cannot open file C:/nRF5_SDK_14.2.0_17b948a/examples/ble_central_and_peripheral/experimental/nrf528xx-ble-throughput-demo-master/ble_app_att_mtu_throughput/pca10056/s140/arm5_no_packs/Output/ble_app_att_mtu_throughput_pca10040_s132 nrf52832_xxaa/Obj/ble_app_att_mtu_throughput_pca10040_s132.ind ... (more)

59
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2
1

## Is this the current state of support for Bluetooth 5?

I’ve been working in a small group to use the advertising extensions in BT5 to send 12 hours of temperature measurements in one advertising packets. We’ve been developing with the nRF2840 PDK, and trying loads of SDK and ... (more)

152
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1
vote
1

## nRF52840 long range demo

Hello,

I have see this demo

.hex are available witch is already nice, but I would like to get everything needed to reproduce it. Does someone know if it's possible to get the client application, the GPS cabling schema ... (more)

54
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1
vote
1

## How to find the BLE5 distance between two NRF52840 chips?

I stumbled upon Nordics video on facebook where they show how to calculate the distance between two NRF52840 Dev Kits. Link to video and article: https://devzone.nordicsemi.com/blogs/...

I have purchased several Dev Kits in hopes of being ... (more)

65
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no
no

## SDK Lightswitch Demo

I was reading through the documentation and it mentions you need;

• One PCA10028 or PCA10040 development board for the client.
• Three development boards or dongles (PCA10028, PCA10031, or PCA10040) for the servers.

I have nRF52840 that has PCA10056, but for ... (more)

84
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1
vote
1

## S140 & SDK14, bluetooth5 test with nRF52840

Hello,

I succeeded to port s110 & sdk9 to s140 & sdk14 which was a problem before.

What we need to do now is to compare the performance of BLE devices with s110 & sdk9 (nrf51822) and bluetooth 5 devices with s140 & sdk14 ... (more)

401
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no
2

## 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)

114
views
no
no

## 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.

83
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2
2

## 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)

53
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no
1

## 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)

200
views
no
1

## 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)

200
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3
1

## 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?

57
views
1
vote
1

## 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)

204
views
no
1

## 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)

96
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no
1

## 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)

165
views
1
vote
1

## 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)

163
views
1
vote
1

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

Best Wishes

Ati

280
views
4
2

## 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)

128
views
2
1

## 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

85
views
no
1

## 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

141
views
6
1

## 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)

259
views
3
1

## 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)

348
views
1
vote
1

## "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"?

514
views
2
1

## 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)

435
views
2
1

## 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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