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Last activity 2017-08-17 22:17:47 +0200 by gorazd

advertising manufacturing specific data without company id?

Hello, we would like to release our product to the market.

Our device is a (BLE) beacon based on nrf52 which is advertising some data encoded as manufacturing specific data but with a company id of 0xFFFF which is for ... (more)

17
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no
votes
1
answer
Last activity 2017-08-17 22:16:39 +0200 by endnode

HCI command sequence for BLE

Hi,

I am new in BLE and working on existing product. i am adding BLE functionality in the existing product hence having one host MCU on my board. My product will be in central mode and will communicate with the ... (more)

6
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answers
Last activity 2017-08-17 17:26:41 +0200 by vit bernatik

nRF Connect adds by mistake Alert Notification Service

Hello, I'm having latest nRF connect for Android v4.13.1. I'm running it on Samsung S6 (model SM-G920F) Android 7.0 nougat; build version (NRD90M.G920FXXS5EQG); Kernel from Jul 4 2017. I'm using phone as GAP ... (more)

7
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Last activity 2017-08-17 17:17:23 +0200 by Alex

TWI blocks after send receive sequences

Hello

I am using a custom board, based on nRF52832 CIAAB0. I have also S132 installed, and I am using SDK 13.1.0. TWI pins are P0.16 - SCL & P0.18 - SDA. The code is based on twi_sensor example ... (more)

30
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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)

14
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answers
Last activity 2017-08-16 07:57:36 +0200 by awef

Possible reasons for BLE suddenly not working?

I have a custom board that is running the NRF52832 from the Redbear MB-N2 Module.

Suddenly the board will not BLE advertise. I loaded the HRM example and that won't advertise either.

Then I loaded the same files on ... (more)

31
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answers
Last activity 2017-08-15 09:37:48 +0200 by Kuo

Mesh light_control example could not work on PCA10028

Hi,

I've test the light_control example with the PCA10028 & PCA10040 recently. The PCA10040 was test and it works normally, but the PCA10028 does not.

I have also checked the version of SoftDevice and the configuration of project(the SoftDevice ... (more)

47
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no
votes
1
answer
Last activity 2017-08-14 20:45:04 +0200 by John DeWitt flag of United States

pc-ble-driver dll dependencies?

Hello,

We have a C# program we use in production to test and certify up to 90 of our devices at a time. We were using the nRF51 dongle and the MasterEmulator DLL, however due to the large amount of ... (more)

41
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votes
2
answers
Last activity 2017-08-14 11:01:33 +0200 by madblue

applications to plot ecg through BLE

Is there any applications which can plot ecg from data send through BLE ?

101
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2
votes
1
answer
Last activity 2017-08-11 21:55:12 +0200 by Thomas Stenersen flag of Norway

Mesh SDK Beaconing Instructions

After some effort, I have managed to build the beaconing example that's missing from the examples.emProject of the ble_mesh_v0.9.1-Alpha SDK. I have this running on the PCA10028 and it's advertising. How do I now use ... (more)

31
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Last activity 2017-08-11 15:25:33 +0200 by q

sd_ble_gattc_primary_services_discover return NRF_ERROR_BUSY [closed]

Hi

sd_ble_gattc_primary_services_discover() is being called from ble_db_discovery_start() within ble_db_discovery.c. I'm trying to get the ble_cts_c service working. It works ok the first time after erasing and flashing the device, but every subsequent debugger run gives me NRF_ERROR_BUSY from ... (more)

114
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answers
Last activity 2017-08-11 08:02:53 +0200 by DragonAnger

BLE connection problem

Hi,

I'm using sdk12.3.0 ble_app_uart.

My problem is BLE connection.

Sometimes(almost 50%)I tried to connect BLE but fail and I have to connect again.

I don't know why.

This image is messages that I ... (more)

73
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1
vote
2
answers
Last activity 2017-08-09 20:03:26 +0200 by Nguyen Hoan Hoang flag of Canada

how can i send int16_t data type via ble!

Hi, im using nrf 52 DK. Im currently working on BLE UART example. I need to send int16_t data type to my smartphone's nordic uart app. But i cant. I was using the function ble_nus_string_send(). But it can only ... (more)

340
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4
votes
3
answers
Last activity 2017-08-08 13:32:39 +0200 by Torsten Robitzki

BLE 4.2 sniffer

I am hoping to get solid verification that nordic offers a solution for sniffing BLE 4.2 packets.

The application I need to sniff is maxing out the MTU (250B payload) so I need support for long packets.

The blogs ... (more)

42
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no
votes
1
answer
Last activity 2017-08-08 12:03:18 +0200 by endnode

Reason behind CRC error

Hi!

I am sorry if I had repeated questions in this forum. I would like to understand few things.

Test scenario

Central - nRF52840 Peripheral - nRF52840 Bluetooth 5.0 Connection interval - 10 ms Data - 10 samples/10ms as notifications Sniffer - nRF52 ... (more)

100
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2
votes
2
answers
Last activity 2017-08-08 11:17:28 +0200 by Joakim Jakobsen flag of Norway

nRF52 DK as BLE sniffer

Can nRF52 DK be used as a BLE sniffer?

26
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1
vote
1
answer
Last activity 2017-08-08 09:08:55 +0200 by Roger Clark

Flags in nrf connect app

while i am trying to scan my ble device i have seen the following screen on my nrfconnect app. so i have a doubt in the screen , please let me know what is mean by the "BrEdrNotSupported", which is highlighted ... (more)

68
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no
votes
2
answers
Last activity 2017-08-07 15:55:04 +0200 by Andrzej Kuroś

Speed up DB Discovery

Hi,

I have a device in the central role that connects to a device with a specific name. I then do a db_discovery_start to get the handles of two of the characteristics. However, it takes a while for the BLE_DB_DISCOVERY_COMPLETE ... (more)

36
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no
votes
1
answer
Last activity 2017-08-05 12:04:43 +0200 by endnode

Star Topology Duplex Commuication

Are they any units capable of a 4 way network where every message is broadcast to the whole network? Preferably, with UART.

114
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1
vote
2
answers
Last activity 2017-08-04 21:09:51 +0200 by jsheaney

BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST vs BLE_GATTS_EVT_WRITE

My goal is to have a writeable characteristic that I can reject on my peripheral, based on the state of the application.

In my test application, based on the nus uart service example, I initially received the BLE_GATTS_EVT_WRITE event and ... (more)

56
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no
votes
1
answer
Last activity 2017-08-04 20:12:45 +0200 by Mehrdad

BLE Disconnect Detect

Hi all, I am not very proficient in NORDIC and BLE. I was wondering if you could answer me. I am developing a module using NRF52. I have a redundant wireless communication channel: (1) a BLE connection (2) an RF ... (more)

40
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1
vote
1
answer
Last activity 2017-08-04 10:49:25 +0200 by Sigurd flag of Norway

Linking MPU 6050 and BLE UART example.

Hi, im using nRF 52 DK. I interfaced mpu 6050 by using the example found here(BLE example found here is not working properly, dosent connect with uart app). I'm particularly using the example linked below, which uses twi ... (more)

60
views
1
vote
1
answer
Last activity 2017-08-04 09:51:27 +0200 by Jorge flag of Austria

How to add bootloader to device

Hi all,

I am started my project using the softdevice S130 v2.0.1 and the ble_app_uart example(SDK11) on a custom board with the nRF51822. I had to made some changes for the clock source because of the custom ... (more)

25
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no
votes
1
answer
Last activity 2017-08-03 13:01:02 +0200 by Sigurd flag of Norway

Are there examples for using battery & HTS service at the central?

I have set up the peripheral to transmit some dummy data, device information service, battery service and HTS service. I am getting started with the "central" now. Can some one tell me how to use these services in the central ... (more)

30
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no
votes
1
answer
Last activity 2017-08-03 11:05:51 +0200 by Hung Bui

The packet transmission interval is incorrect

SDK: nRF5_SDK_11.0.0 Softdevice: s132_nrf52_2.0.0_softdevice
project:\examples\ble_peripheral\ble_app_uart\pca10040\s132\arm4\ble_app_uart_s132_pca10040.uvproj

II would like to use nRF52832 get the maximum throughput, I set the minimum connection interval to 50ms, the following is my modified ... (more)

46
views
1
vote
1
answer
Last activity 2017-08-02 21:34:56 +0200 by endnode

Enable pins 9 and 10 as GPIO on NRF52

Hi All,

I am developing a ble applications and am unable to get pins 9 or 10 to work as gpio. I understand that this is because, by default they are used by the NFC.

I have tried the following ... (more)

24
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no
votes
no
answers
Last activity 2017-08-02 16:45:53 +0200 by phob

two NRF51822 communication fails sometimes

Hi, I am using 2 nrf51822 devices. one is central and other one is peripheral. I am using s130 softdevice. When i was trying to connect NRF51822 to other nrf51822. i tried for 1st time then communication happens. But later ... (more)

69
views
2
votes
1
answer
Last activity 2017-08-02 12:51:15 +0200 by Sigurd flag of Norway

Minimum connection interval

Hi all,

Does in any chip with some constellation (different SD) the device allows less than 7.5ms for the connection interval? Or is this value the absolute minimum?

30
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no
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no
answers
Last activity 2017-08-02 11:55:09 +0200 by Michalowic

nRF52832 DFU + Main application [closed]

Hi. I'm trying to flash Secure DFU bootloader together with my application. I tried to flash bootloader and then main application, but the device stays in bootloader instead of starting main application. I also tried to combine .hex files ... (more)

26
views
2
votes
1
answer
Last activity 2017-08-01 19:29:29 +0200 by endnode

nrf52832 Radio Rx operation on sfotdevice

Hello all, Accordingly with nrf52832 product especitifation when radio Rx is active there's a additional 5.4mA consumption. My doubt is how softdevice s132 handles the Rx channel activation/deactivation. By simply setting adv parameters struct to BLE_GAP_ADV_TYPE_ADV_IND or ... (more)

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