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Last activity 2017-08-17 17:03:22 +0200 by Esteban Gutiérrez

Notifying characteristic value with 80 bytes each 20 ms gives me a BLE_HCI_CONNECTION_TIMEOUT in nRF-Connect

Hello,

I have a project in witch I want to send the data received from an Arduino by UART, this data has a size of a little bit less than 80 bytes, this data is received each 20 ms (a ... (more)

16
views
no
votes
1
answer
Last activity 2017-08-17 12:59:42 +0200 by Hung Bui

DFU buttonless with SDK11

Hi all,

I have a custom board with a nRF51 and a DSP connected to eachother (SPI, UART and I2C) and since I have no connection to the nRF directly or any buttons I need to make upgrades on the ... (more)

7
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no
votes
no
answers
Last activity 2017-08-17 10:15:30 +0200 by Markus

Android devices lose bonding

Hi,

we've developed a custom board with nrf51 and use bonding and white listing.

Everything works fine when connecting and bonding iOS phones with this devices but with Android things are a bit more difficult.

Somehow after bonding certain ... (more)

417
views
1
vote
3
answers
Last activity 2017-08-16 14:22:23 +0200 by strengthstrong

Multiple notify characteristics

Hi

I'm trying to create a custom ble service with 4 notify characteristics. Everything works with one characteristic, but when i add the other the DK hangs.

I'm using SDK11 with S130.

I made it work with two ... (more)

30
views
no
votes
1
answer
Last activity 2017-08-16 08:46:29 +0200 by ChaitanyaP

Sending multiple characters using single keystroke in HID keyboard example

Hi experts I am trying to play a little with BLE HID keyboard example supplied by nordic I see that there is an array of 5 characters "hello" + "enterkey press" which is sent when button 1 is pressed. On every ... (more)

49
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no
votes
2
answers
Last activity 2017-08-14 11:13:30 +0200 by khosla

How to capture the screenshot of the data collected on the J-link RTT viewer V5.10n

ru.txtra.txtCan someone help out in this. There is no option to capture the data in RTT. Somehow I am not able to take a screenshot directly from the Windows on my MAC.

478
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no
votes
2
answers
Last activity 2017-08-10 11:52:24 +0200 by anv

Problem in twi/i2c communication receiving data

Hi<br> I'm trying to communicate between nrf51-DK and arduino using twi. I was able to send data from nrf51-DK to arduino using nrf_drv_twi_tx but when I'm trying to send the data from arduino to DK, I'm ... (more)

60
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no
votes
no
answers
Last activity 2017-08-09 09:16:19 +0200 by Mang Usman flag of Indonesia

NRF51 Vs NRF52

Hello Nordics Developer I'm from indonesia, i'm electronics designer, i have develop new products using BLE, first develop i'm using nrf51 series but And my boss ask is there any better than nrf51? In indonesia enough difficulty ... (more)

110
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no
votes
1
answer
Last activity 2017-08-08 13:55:27 +0200 by khosla

Sniffer not functioning.

ppi.zipHi, I am using radio with ppi to advertize packets as shown in the mainc file attached. Even after allocating the access address of Bluetooth on line 196 as set_address0(0x8E89BED6); and advertizing channel selected as 37 as ... (more)

194
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no
votes
1
answer
Last activity 2017-08-07 15:29:30 +0200 by Vladimir

do nrf51 and nrf52 series firmware and software can be protected from overriding, cloning, copying,erasing?

Hi, I am mobile developer and very new to mcu programming. Due to our new product's requirements, I have to write program with new bluetooth chip. So if nrf51 and nrf52 series firmware and software can be protected from ... (more)

34
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1
vote
1
answer
Last activity 2017-08-06 14:59:21 +0200 by Turbo J

Debugging with nrf51 dongle

I'm trying to see debugging info with nrf51 dongle. As far as I can tell I just need to use:

#define NRF_LOG_MODULE_NAME "APP"
#include "nrf_log.h"
#include "nrf_log_ctrl.h" 
#define ENABLE_DEBUG_LOG_SUPPORT 1

in setup and then the code:

ret_code_t ...
(more)

37
views
1
vote
1
answer
Last activity 2017-08-04 17:32:46 +0200 by Nicolas Brunner flag of Switzerland

nrf51 dongle sniffer not working

Hello,

I'm trying to use a nrf51 dongle (PCA10031) as a BLE sniffer. I'm following the ble-sniffer_win_1.2_User Guide.pdf. On the required software, i need to install "nRF tools downloaded from www.nordicsemi.com." but when i ... (more)

15
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no
votes
no
answers
Last activity 2017-08-02 16:47:57 +0200 by Mabbas

Unable to connect noridic nrf51 with andriod 5.x

Hello everyone,

I tried to connect with nrf51 with andriod 5.x .On connection indication the Master (android ) shows the following values of connection parameter (taken from sniffer):

  connInterval: 37,50  ms
  connSlaveLatency: 0
  connSupervisionTimeout: 20000,00  ms

The nrf52 ... (more)

35
views
no
votes
1
answer
Last activity 2017-08-02 10:58:55 +0200 by Bjørn Spockeli flag of Norway

Sending receiving UDP Data wit nrf51 Dongle

Hi,

I want to use nrf51 Dongle for sendig received UDP data to my nrf51822.

How can I send receiving UDP data with nrf51 Dongle?

91
views
1
vote
1
answer
Last activity 2017-08-01 15:22:08 +0200 by Bjørn Spockeli flag of Norway

nrf_mesh_init/nrf_mesh_node_config causing MESH ASSERT

I am testing out the Bluetooth Mesh SDK 0.9.1 Alpha using the light control client/server example. The examples have not been modified.

I have set up a nRF52 development kit as the client, and a nRF51 development ... (more)

24
views
1
vote
1
answer
Last activity 2017-08-01 12:52:41 +0200 by Krzysztof Zaraska

Where is characteristic value data kept?

Hello,

Is the characteristic value data supplied to sd_ble_gatts_characteristic_add() and sd_ble_gatts_value_set() copied into the softdevice RAM, or does the softdevice refer to application RAM whenever client requests a characteristic read? I cannot find this information in the SDK docs.

Consider ... (more)

70
views
no
votes
no
answers
Last activity 2017-08-01 06:41:39 +0200 by kren

HARDFAULT on nRF51 DK(PCA10028) when I run lightcontrol of mesh SDK

Hi there, I'm trying to deploy mesh v0.9.1 alpha on my board, I've already run lightcontrol server and client on my nRF 52 DK, they work well. Then I flash S130 v2.0.1 and lightcontrol ... (more)

30
views
no
votes
no
answers
Last activity 2017-07-30 07:56:47 +0200 by Vijyendra

Device disconnected and not going connecting again

I was writing 3 character to ble device .but I got below error and ble device got disconnected. LED lights got off...

[CoreBluetooth] API MISUSE: <CBPeripheral: 0x1572b660, identifier = 82616B5B-3759-43F2-82DF-61573C2BDCD0, name = AP-09-9999 \^B, state = disconnected> can only accept commands while in ... (more)

43
views
no
votes
1
answer
Last activity 2017-07-27 09:40:01 +0200 by Jørgen Holmefjord flag of Norway

c++ Instead of nRF Connect

Hi,

I can send and receive commands from nRF51 Dongle to nRF51822 via using nRF Connect UART over BLE Service.

My question is : Is there another way to reach nRF51 Dongle for connecting my nRF51822 via C++?

42
views
1
vote
1
answer
Last activity 2017-07-25 08:50:26 +0200 by Jørgen Kvalvaag

How can I make only bonded devices can write to my characteristic on nRF_5 chip?

I am developing an application with a single service that has a single characteristic with read and write operations.

I want to give the ability to writing to this characteristic to only bonded devices and not just any connected device ... (more)

91
views
no
votes
2
answers
Last activity 2017-07-24 16:22:37 +0200 by Iliyan Iliev flag of Bulgaria

HID Mouse Example - Can't Pair with Windows 10

I want to run the HID Mouse and Keyboard examples on nRF51 Dongle. How I can configure it first, to connect with my PC via Bluetooth and second, to configure the GPIOs act like buttons, since the dongle doesn't ... (more)

59
views
no
votes
1
answer
Last activity 2017-07-14 08:55:21 +0200 by Tom

Problem with Apple

Hello, I'm new with the nRF51-DK-Board . At the moment I test the hid keyboard example. The connection with Android and Windows works fine, but with my MacBook it don't: The connection connects and disconnects very fast and repeats ... (more)

49
views
1
vote
1
answer
Last activity 2017-07-13 16:38:12 +0200 by Hung Bui

Does s332 compatible with nRF51

Hi everyone,

For my project I'm currently using the sdk 10.0.0 (S310 on a nRF51422) and I would like to use the Secure DFU provide by the sdk 12.0.x.

Working on a nRF51422 chip, I ... (more)

34
views
no
votes
1
answer
Last activity 2017-07-10 07:49:10 +0200 by PabloGC

External pin interrupt

I'm implementing an I2C communication and I need to set an interruption every time the sensor sets the interrupt pin to 0. I've been checking some other posts from devzone and arrived at the conclusion that the code ... (more)

142
views
no
votes
1
answer
Last activity 2017-07-06 02:57:44 +0200 by DragonAnger

nrf51822 uart question

First of all, Because of my poor English, and I'm newbie this kind of work.

I'm not sure you can understand my question. But I'll try

Currently, To see my borad's log datas, I use debug ... (more)

47
views
no
votes
no
answers
Last activity 2017-07-06 01:36:02 +0200 by DragonAnger

nrf51822 wired UART and USB to UART

Hi, I have some question about wiredUART and USB to UART

I'm using nrf51822+BLE400.

Is there any difference UART communication between using USB to UART

and wiring on the UART pins?

I'm using ble_app_uart(SDK 12).

I ... (more)

65
views
no
votes
1
answer
Last activity 2017-06-29 13:33:05 +0200 by khosla

Using RTT viewer in SDK 12.2 SES

sdkconfig.txtmainc.txt(/attachment/6fb97103178e9eb2c30302351e63ce8f)Can you please tell whether i follow the the entire tutorial as in the link or just the first step for SDK 12.2 SES. Even if i use the first step, i need ... (more)

24
views
no
votes
no
answers
Last activity 2017-06-29 12:08:41 +0200 by khosla

Sniffer not showing up my device.

Hi, I am using radio with ppi to advertize packets as shown in the mainc file attached.mainc.txt Even after allocating the access address of Bluetooth on line 196 as set_address0(0x8E89BED6); and advertizing channel selected as 37 as ... (more)

44
views
no
votes
1
answer
Last activity 2017-06-22 21:40:20 +0200 by endnode

S130 central disconnected immediately after connection to iOS peripheral

Dear developers, I am developing a scheme where the nRF51 (central role) connects to iOS device (peripheral roles). The nRF51 connects, performs the discovery procedure and interacts with desired characteristics.

However, this only works for some iOS peers (some phones ... (more)

60
views
no
votes
1
answer
Last activity 2017-06-16 13:31:04 +0200 by Torbjørn Øvrebekk

How to enable radio interrupts using SDK?

mainc.txt

we can use INTENSET to enable certain events on the radio as in line 460 in mainc file attached. But how to enable this on the radio as a whole. I basically need a couple of events like ... (more)

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