# 47 questions

Tagged
• x
31
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1
vote
1

## central and peripheral communication

hi support team, my nrf52840 is acting as peripheral and my mobile with nrf connect is acting as central. after the connection i am able to read and write my device name, link loss alert, battery notification alerts, immediate alert ... (more)

73
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1
vote
1

## NRF52840 PDK BLE Secure DFU Bootloader

files.rar

Hello, I am using nRF5 SDK14.1.0 and soft device s140_nrf52840_5.0.0-2.alph.I can program the board witt the bootloader(both pca10056 and pca10056_debug) successfully and its advertising. I generated firmware package from the application ... (more)

21
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no
1

## USB BULK Example of nRF52840 & S140 (v6.0.0-6) & SDK14.1

Hi,

Are there any examples of SDK examples that work with USB BULK communication?

Which example should I use to make usbd_hid_generic example work with BULK communication?

Context flow may not be smooth using Google Translate. Thank you.

26
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no
no

## USB & BLE Project of nRF52840 & S140 (v6.0.0-6) & SDK14.0

Hi,

We are currently working on one project.

Initially, the nRF52840 & S140 (v5.0.0-2) & SDK14.0

examples \ ble_central \ ble_app_multilink_central Based on the example examples \ peripheral \ usbd_hid_generic example.

But it does not work at the same time, The usb_start () function ... (more)

121
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1
vote
2

## Current measurements on nrf52840 pdk with PPK

ble_app_gls_pca10056_s140.hex

Hi, I am new in this field and i am trying to do current measurement on the nrf52840 PDK using PPK, in sleep mode(sd_power_system_off) i get average 40 micro amp which suppose to be 0,6! while ... (more)

69
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no
1

## central and peripheral nrf52840

hi, i am having a doubt. now my nrf 52840 is acting as a peripheral. it is advertising some packets and my mobile is acting as a central and receiving the advertising packets. after the connection is made i want ... (more)

21
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no
2

## No RTT Viewer output if no call to nrf_pwr_mgmt_run()

Hi!

I've based a new project for the nRF52840/S140/Preview-DK on ble_central/ble_app_uart_c.

I use the NRF_LOG_XXXX macros for debug and they print fine in RTT Viewer.

However, I do not need any powersave in my app but ... (more)

49
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no
no

## SD140 6.0.0-6-alpha BLE issues

Greetings -

I recently downloaded the latest SD140 images, 6.0.0-6-alpha, and began having issues with BLE communication.

I'm developing a custom device, based on the nRF52840, and we require both BLE and USB communication. The USB peripheral seems ... (more)

29
views
1
vote
1

## undefined symbol error

hi, i want to add uart function to my application. so i added necessary .c files to my project. if i compile the program i am getting these errors.

when i change the values sdk.config.h file

#ifndef APP_UART_ENABLED ...
(more)

27
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no
1

## advertising nrf52840 unlimitedly using ble_app_beacon

hi, i made my nrf 52840 dk advertise unlimitedly using ble_app_uart example. connected and disconnected several times using nrfconnect app. it really works fine. with this necessary changes.

i want to do ... (more)

50
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2
1

## Scanning with selective channel(s)

Hi,

I know that this question has been asked before but it seems like the answers are pretty old.

I have a need to scan on one channel only to receive advertisements, just like described here:

69
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no
1

## s140 nrf52840 6.0.0-6.a [closed]

Hi Nordic Engineers!

I read the description of new SD s140 v6 and find a lot of good features.

A question 1, is this the next version that will be supported in the future ? May I try to use it ... (more)

44
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no
1

## uart nrf52840

hi,

is it possible to set major and minor values in ble_app_uart example in sdk14.1. and advertise it. now it is advertising rssi, uuid, mac id and device name. i want to advertise major and minor values too.

97
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no
no

## Adding Sensor Model to bluetooth 5 mesh

Hi Support Team,

I am trying to create the custom model - as far as I know there are two types of models possible in bluetooth 5 mesh - SIG defined and vendor specific.

Example given is for simple on-off model - nrf5_SDK_for_Mesh_v0 ... (more)

25
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2
no

## BLE beacon callback

Is there any callback interface of sent-beacon activity that I can use in BLE s140?

I want to change the content of the beacon every time I send one. So I want to use a callback function after every beacon ... (more)

28
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no
1

## Configuration problem of BLE scan

I am using nRF52480 and s140. The example is ble_app_uart_c. The program works fine with: Scan interval x00A0 and Scan window x0050

However, when I set the Scan window to 140. or something bigger. The program keeps restarting and the ... (more)

48
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no
1

## Being able to connect multiple smartphones to a BLE peripheral

We are designing a product that allows multiple users to connect their phones to the same peripheral device. I wanted to check it out with this example:

https://infocenter.nordicsemi.com/ind...

I compiled and flashed the example on my ... (more)

85
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2
1

## BLE L2CAP Test with PTS

Hi, I have used nRF52840-PDK. And I want to test profile and protocol with PTS. I succeeded in GATT-based service test and GATT test with PTS.

But when I try to L2CAP test, PTS makes message and doesn't conduct ... (more)

68
views
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)

49
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no
1

## S140 BLE config

I need some parameters of the BLE s140 stack for my project. Including duration of an advertisement event (beacon) and the maximum random slack for an advertisement.

I am not sure where can I find those things.

I am using ... (more)

96
views
no
1

## hi, i am using nrf52840, i need to get a rssi value from the near by mobile phones. is there any example for that. where can i get the example

i am using ble_app_multilink_central example. is this enough to get rssi value.

70
views
1
vote
1

## Flash program nRF52840 DK

I have trouble programming the PDK using nrfjprog. I can flash the program fine using Segger Embedded Studio but it doesn't appear to be working using nrfjprog.

Here are the steps I followed:

1) Flash s140 softdevice using make ... (more)

77
views
1
vote
1

## Cannot build nRF5 SDK Mesh

I am having errors building the examples in the latest SDK for Mesh (nrf5_SDK_for_Mesh_v0.10.0-Alpha_src). I ran cmake -DTOOLCHAIN=gccarmemb -DPLATFORM=nrf52840_xxAA .. in my build directory which appears to be working just fine. However when I do make I ... (more)

45
views
1
vote
1

## nrf52840 and s140, using sdk14, UART Example Problem .. [closed]

Hello,

I am trying to communicate urart with nrf52840 and other devices.

But there was a problem. You can transfer data from the nrf52840 to another device, but if you transfer data to the nrf52840 from another device, it will ... (more)

39
views
1
vote
1

## Softdevice example doesn't start when powered by other source than MCU interface.

Hi,

Recently I receive the "nRF52840-Preview-DK" and I download the "nRF5 SDK v14.0.0". I try some example with Keil and all of them works well when I use the MCU interface. But when I try to powered the ... (more)

55
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no
no

## Advertising not starting after disconnection -s140

Hi,

I have a problem with advertising, application starts advertising and makes connection normally, but after disconnection advertising is not starting. sd_ble_gap_adv_start() returns no errors. It's a program based on ATT_MTU throughput example with openthread added.

270
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no
1

## Some Query regarding implemention nrf52840?

Hello,

1.We have to implement multi pal peripherals and one central.I have to send data(some sensor data) between it periodically....using NUS sample it is possible?? 2.For sending data periodically....How timer is implemented for nrf52840??

81
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no
1

## I build mesh sdk for nrf52840 it give error I not able to understand meaning ??

Hello, I try to build mesh sdk for nrf52840 it gives me error on RTT

0> <t:          0>, main.c,  318, ----- BLE Mesh Light Control Client Demo -----
0> <t:          0>, main.c,  108, Initializing softdevice
0> <t:          0>, nrf_mesh_sdk.c ...
(more)

69
views
1
vote
1

## Which features are already implemented on nRF52840?

Hi everyone,

I would like to test the capabilities of nRF52840. I understand that it should be capable of higher throughput (x2), increased broadcast capacity (x8), and long range advertisements.

But are these features already implemented or only expected to ... (more)

115
views
1
vote
1

## SDK9 to SDK14, NRF52840

Hi, I use it as a translator for Google, so it may be strange in context. please understand.

I was in big trouble. I used the nRF51822, S110, and SDK9 in my previous project.

I received a new board, nRF52840 ... (more)

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