# 1,249 questions

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• x
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I'm using the 1.0.1 nRF Sniffer and 1.10.10 Wireshark on Windows 10 64bit. The firmware 1.0.1 is programmed to nRF51822 dongle using Jlink 6.12a. The exe works fine when no device is ... (more)

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Hi,

Central nrf52840

peripheral nrf52840

connection interval (both min and max) 10ms

scan interval 50 ms

scan windows 25ms

scan timeout 0

connection supervision timeout 4s

My question is, when the central or ... (more)

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## Is there a mesh gateway project in mesh SDK?

I got the BLE mesh SDK from: http://www.nordicsemi.com/eng/Products/Bluetooth-low-energy/nRF5-SDK-for-Mesh/(language)/eng-GB

I want to develop a mesh gateway to connect the internet. Is there a example gateway project for mesh?

Thanks.

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## SD Write Problem

Hi Everyone,

I am trying to record data from ADC to a SD card every 500ms using nrf52832. I am following the fatfs example. Before I had a problem whereby every approximately 10s I would lose a few samples from ... (more)

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## 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)

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## Wrong board in nRF5 SDK for Mesh v0.10.0

Hello,

I am having troubles to run the light_switch example from the nrf5_SDK_for_Mesh_v0.10.0.

I am using PCA10028 boards with nRF51822. I didn't modify anything in the SDK.

I did erase the content on the board, program the ... (more)

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## Transferring data received over ble to sd card

Hi All,

I am working on pca10040, nrf52832 and s132. I am using ble_app_uart and sd card, where i want to transmit data received over ble to the sd card.

Can you help me with how can i do so ... (more)

45
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## 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)

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## Help to create mesh network!

Hi! I need your help! I need to create some mesh network consists of simple devices (A) which could collect mac addresses of all visible Bluetooth devices (C) and send it through similar devices to the main device (B). So ... (more)

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## Nordic's Bluetooth Mesh Mobile Applications Available?

Hi, I noticed that Silicon Labs announced their Mobile Mesh application for Android and showed a demo video.

I searched Nordic's GitHub page. However, I couldn't find a project related to Bluetooth Mesh mobile app.

Will there be ... (more)

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## nRF52832 BLE Maximum Throughput

For programming the nrf52832's BLE capabilities the only option that can be used is the s132 soft device right?

According to the latest specification, the maximum throughput that can be achieved is 803 kbps @1Mbps which is the maximum ... (more)

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## How do I calculate throughput for a BLE Mesh?

Good day!

How can I calculate the maximum throughput for BLE Mesh running on the nRF52832 and the S132 without packet loss in ideal conditions?

I have tested throughput in BLE Mesh SDK v0.9.1 between two nodes and ... (more)

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## How to achieve higher throughput in Piconet using Nordic UART Service?

I have created a Piconet using nrf52840(s140). The 'Central' application was built on ble_app_uart_c example, which is now successfully connecting up to 7 peripherals. The Peripherals are also using NUS service to send data with(ble_nus_string_send) to Central.

I ... (more)

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## Using hvx_params to send string data?

Have been following the nordic tutorial to update characteristic value using hvx_params. Currently the structure for hvx_params is as follows:

    /**@brief GATT HVx parameters. */
typedef struct
{
uint16_t          handle;             /**< Characteristic Value Handle. */
uint8_t           type;               /**< Indication or Notification, see @ref BLE_GATT_HVX_TYPES. */
uint16_t ...
(more)

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## Function of ScanStart in Mesh SDK

How does scanstart serial command work in the Mesh SDK?

According to the documentation, it appears that the command lists out unprovisioned beacons. I get a success response but nothing seems to happen in my interactive terminal.

I am trying ... (more)

44
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## Parsing of Advertising Data in Android and IOS.

Hi,

We are integrating a 3rd party device with our application and while we were parsing advertising data, we found the same data received in Android at 3rd and 4th index of the advertising packet, while in IOS it is ... (more)

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## BLE_NUS RX strcmp [closed]

Hey all,

I'm trying to get the Nordic UART service with the nRF Toolbox App (Android). But always when I send "Hello" from the nRF Toolbox App, for example, I don't only get "Hello". In putty I can ... (more)

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## Can BLE beacons act as receivers?

I am working on a project which involves sending data from many beacons to many other beacons. To be more specific, I have two groups of beacons:

The first group consists of senders (or advertisers) which regularly (i.e. 500ms ... (more)

31
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1
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1

## Error Listing symbols

Hi All,

I am working on BLE+SD card.I am getting following error:-

*** Using Compiler 'V5.06 update 4 (build 422)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'
Build target 'nrf52832_xxaa'
compiling main.c...
.\_build\nrf52832_xxaa.axf: Error: L6218E ...
(more)

56
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## It is possible to program mesh gateway in SDK for Mesh Alpha?

Hi all,

I am using PCA10040 (nRF52832) and I want to create a ble mesh network. I know that this SDK contains some examples for mesh, but I am not able to find something like gateway. I would like to ... (more)

22
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## How I can connect with password witn my nrf52832 via Android phone?

I want connect with password with my nrf52832 via Android phone. How I can do it? I do not want to do pairing how in example project "ble_app_gls". I used Android 6, SDK14, SoftDevice S132.

69
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## 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)

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## How to bring micro controller out of sleep mode after a certain amount of ticks on a crystal?

I am writing code that runs on a NRF51822 (to be less specific it runs on a Red Bear Lab BLE Nano). The board has a 32.768khz crystal on it that I want to use to wake up the ... (more)

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## NRF52 reboots constantly when I add UART

I am using the ble_app_uart example from SDK13 and something strange is happening. The code without UART part works nice and I can see in RTT that it can discover every beacon in the room and it seems it works ... (more)

84
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## NRF52 scan request notification with Zephyr

Hello guys,

I would like to execute code once a scan request from any other BLE device is received by the NRF52 using Zephyr.

Unfortunately, I am not able to receive such an event. I am using the current kernel ... (more)

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## When I send 512 Byte from my Android phone I received only 20 Byte. How I can received more than 20 Byte?

When I send 512 Byte from my Android phone I received only 20 Byte. How I can received more than 20 Byte? I used example project "ble_app_uart", SDK 14, SoftDdevice s132, nrf52832.

37
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## nrf52832 Central-Peripheral Connection

Hello,

I am using ndk52 (nrf52832) as peripheral and central in my system. I did some changes on ble-app-uart example for both. Now i can send my packets continiously. I am trying to change it little bit more. I want ... (more)

117
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## Best example to automatically pair to BLE devices?

Hello,

I was wondering what is the best example to take as reference in case I want to pair two BLE devices automatically, I mean, I would like to make my devices to start scanning and pairing themselves once they ... (more)

22
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1

## Compiling for nrF51422 and running on nRF51822

Hi all,

I installed Nordic examples for Keil MDK, and I am able to compile the examples for the PCA10028 board, which is based on the nRF51422. But I intend to take the same code, and run it on a ... (more)

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## NRF51822 sometimes not working

Hi, I am using NRF51822 and sdk12.2. I am using Softdevice s130 with peripheral experiment_ble_blinky example. I have merge UART example in this and it is working fine.

Yesterday i flashed and it was working perfectly. Even i connected ... (more)

#### Statistics

• Total users: 24904
• Latest user: Kristal Fielder
• Resolved questions: 10659
• Total questions: 26081

## Recent blog posts

• ### How to build continuous integration and delivery process for embedded SW development

Posted 2017-10-03 11:01:29 by Yaniv Nis
• ### Multiple channels in RTT

Posted 2017-09-29 11:51:52 by Krzysztof Zaraska
• ### 6 Things to Know about Bluetooth Beacons

Posted 2017-09-22 08:27:00 by Rose Martin
• ### Creating a Keil project for a Bluetooth Mesh example (Updated for 0.10.0)

Posted 2017-09-19 12:08:11 by Kristian Skordal
• ### Using millis() like in Arduino.

Posted 2017-09-18 11:58:04 by schef

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