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# 1,802 questions

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## Eclipse CDT debug and NVIC registers

I'm using Eclipse CDT for debugging according to the tutorial on this site. I've installed the device pack and I do see the nRF52 peripherals in the debug view. However all the general ARM Cortex-M4 peripherals are missing ... (more)

31
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1
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## csr 4.0 dongle on windows

using mbed uartservice on micro:bit. connects fine to nordic toolbox uart on ipad is it possible to connect to puTTY or similar on windows using csr 4.0 ble dongle.? win7, win10 (or ubuntu) available. tried a lot of ... (more)

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## zigbee and BLE in the same board

Hello,

I want to make a device that use a Zigbee SoC and a nRF51822 for BLE, and I want to make it in the same board, that imply to have two antennas in the board.

I was wondering if ... (more)

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## How i can get sensor values in tera term without connecting to any mobile app ? [closed]

Hi,i'm using the nRF51822 with the IMU 9150 sensor, i'm using the https://github.com/Martinsbl/nrf5-mpu... git repo for my sensor. while i try to read the values of sensor in Tera Term it will shows ... (more)

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## Need help with openocd and stlink

Hi,

I configured openOCD and gcc compiler. But i got following error. i gave following command on terminal.

i created one file that is manual.cfg and contain in that file as follows.

 #nRF52832 Target
source [find interface/stlink-v2.cfg ...
(more)

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## Pstorage and flash crash

Hi Nordic team,

This problem bothers me for a very long time. I cannot find the root cause. I used nRF51822 IC. It uses SDK11 with softdevice S130 and bootloader (but I use it as a peropheral). I used pstorage ... (more)

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## Scan and identify BLE Beacon using UUID

Hello! I'm a new user to NordicSemi and I'm currently working on a project where one nRF52 DK is a beacon and another nRF52 DK is an observer. The observer is supposed to listen for advertisements and recognize ... (more)

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## Nordic Blinky Profile to broadcast temperature sensor data

Hello, I'm a beginner with the BLE technology and nRF52 is a good tool to start with it.

Currently, I have a setup that allows a Raspberry Pi and an nRF52 to communicate with one another via BLE protocol ... (more)

71
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## camera lib for nrf52 dk

Does any one have any library connect the nrf52 DK to a camera with GPIO?

Many thanks

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## Digital input pin voltage drop while using no pull config

Hi I'm using nrf51822 with soft device 11.0 & want to read a 12 volt digital signal for this I'm converting 12v to 3v3 (4.5 & 1.5 Kohm Resistor) using voltage divider ckt but my voltage level ... (more)

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## Assertion in SoftDevice (NRF_FAULT_ID_SD_ASSERT)

Hi

I'm using a nRF52832 togehter with the SoftDevice SD132 and the SDK V12.2.0. I encounter the problem, that the SoftDevice runs into the softdevice_fault_handler(). The reported error is as stated an SD assertion. Is there a ... (more)

21
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1
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1

## packet loss after disconnection?

Hi All! I use nrf51822 with sd s110 to send data to android phone with sd_ble_gatts_hvx. If sd_ble_gatts_hvx returns NRF_SUCCESS then that packet get to TX buffer. I didn't find in the documentation what happens after connection lost. Are ... (more)

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## Cannot connect to NORDIC_BLINKY Profile

I am using nRF52 and Raspberry Pi 3 (with BLE).

In the Raspberry Pi, I am using bluez. I was attempting to connect with the NORDIC_BLINKY app but the message below was shown:

Attempting to connect to CE:BB:87 ...
(more)

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## DFU application doesn't seems to be updated

Hi,

I am currently trying to perform DFU update over BLE, I am working on SDK v11.0, and Softdevice S130 v2.0.0. My traget is an nRF51822-QFACA1.

When I enter in bootloader mode, everything works fine until I ... (more)

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## Is the NRF51822 board ready for programming?

Hi,

I would like to know if the NRF51822 (Just the NRF board, not the BLE Nano) comes already prepared to be programmed or if it needs some modification. I want to program in OTA to use it with Bluetooth low energy.

178
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Is there a tool to simulate hundreds of BLE nodes advertising at the same time?

61
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1
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1

## Using ble_MPU_Simple Example programme we are getting only accelerometer sensor vallues.How to get the Gyro,magneto Values? [closed]

Hi I am presently working on MPU92/65 sensor interfacing with TWI/I2C.

i am using nRF51822 EK with soft device s130_nRF51_2.0.0(id:0x0080) and nRF5 SDK v11.0.0 and keil u vision5.

I was taken nrf5-ble-mpu-simple ... (more)

35
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1
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1

## nRF51822: Current draw when scanning for devices

Hi all,

Does anyone know how much current is meant to be drawn to discover nearby devices? I guess, in other words, how much current is drawn to put the nRF51822 in discovery mode?

Thanks

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## scanning and connection establishment parameters

Hi,

I have a question about scan window and interval [I'm using nrf51822aa with s130 2.0.1... I performing some tests and I find a use case: If I set both of them (scan interval and window) to ... (more)

41
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## Central beacon device with multiple peripherals

Hello.

I need to create multiple btle apps with support for the following network topology:

• 1 btle sensor node; it implements hrs and bas services

• 1 btle sensor node; it implements bps and bas services

• 1 btle sensor node; it ...

(more)

44
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## Service client and beaconing

I must create an application for nrf5 dk with s132 v3.0.0 sd. In this application a device must implement heart rate service client, while continously trasmitting a reference advertising beacon packet. Is it possible ?

30
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## I2C pins used in ISP130301

I plan on using the ISP130301 and would like to ask the following: 1) I would like to start my schematic and layout using the ISP130310 from Insight Sip and would like to know the preferred I2C pins for a ... (more)

841
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## Setting a Passkey to my Device

I'm working on a project & I followed the procedure found here in the answer, it works with me when I tested it when pairing from the bluetooth devices shown, when I tested it with Nordic Master Control Panel, I ... (more)

39
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## Problem in getting the values of sensor [closed]

Hi I am presently working on MPU92/65 sensor interfacing with TWI/I2C.

i am using nRF51822 EK with soft device s130_nRF51_2.0.0(id:0x0080) and nRF5 SDK v12.2.0 and keil u vision5.

i am using termite ... (more)

1k
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## Trying to set BLE device on DFU mode - Get error status 253 on onCharacteristicWrite function

Hello,

I'm trying to set my device on DFU mode by an android mobile application without success. I'm working with nrf51822, sdk10, softdevice 8.0.

I subcribe to the DFU Control Point characteristic (Activate Notification). But when I ... (more)

29
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## UART over BLE: A few of first 100 bytes getting corrupted [closed]

Hello lovely Nordic Semiconductor staff (and everyone else reading this),

I have recently been working on exploring the use of BLE via Nordic chips in my employer's products. We're hoping to be able to switch to using BLE ... (more)

36
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1
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1

## Device still visible while advertising with whitelist

I've come across the following situation:

We have a device (nrf52) which uses fast advertising with whitelist after it has established a bond with a single phone. When the device restarts it begins directed advertising to the phone in ... (more)

60
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## Need your Help for the Beacon and DK

Hi,

I want to know that how if we have Beacon on one side and Development kit on another side so it is possible to communicate them if they are using different services?

If beacon is slave and DK is ... (more)

62
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## Your product details

Can you tell me what is the main different between nRF52832 and nRF51822 and can you send me following information about these products and nRF51822 Bluetooth Smart Beacon Kit.

Bluetooth supported current consumption Integrated Microcontroller Communication Interface Maximum Transmitting power ... (more)

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## Peripheral disconnects when discovering services from a Windows central

Hi, I'm working on a cross-platform application that needs to communicate with a custom peripheral (nRF51822 with S130 v2.0.1). I've implemented the interface for both Linux and Mac OS X without problem, and am working on ... (more)

#### Statistics

• Total users: 16311
• Latest user: tristanubnt
• Resolved questions: 8512
• Unanswered questions: 2249
• Total questions: 19842

## Recent blog posts

• ### nRF52840 long range demo

Posted 2017-02-14 12:46:03 by Ole Bauck
• ### Setup and Running the OpenMesh DFU on the nRF52 DK v2.0

Posted 2017-02-06 22:33:25 by martindavidb
• ### New NFC feature on nRF52 Series: Read/write capable Type 4 Tag NFC library in nRF5 SDK.

Posted 2017-02-02 10:31:31 by Pär H
• ### Simple Application-level Authentication

Posted 2017-01-30 12:34:01 by Daniel Veilleux
• ### WIZnet's BLE to TCP Gateway

Posted 2017-02-01 01:12:03 by Mason Lee

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• ### nRF52840 USB power ???

Posted 2017-02-19 11:20:18 by Roger Clark