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Last activity 2017-12-13 16:49:45 +0200 by flip-flop flag of Croatia

nrf52 ble + pwm huge power consumption

Hi guys, we are developing firmware for nrf52832 SoC based on the mbed platform. The firmware uses BLE and few peripherals (timers and pwms). Since our goal is to build ultra low power consumption device, our focus is to turn ... (more)

76
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2
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2
answers
Last activity 2017-12-13 14:04:47 +0200 by Vidar Berg

Secure DFU Bootloader debugging for nRF51822_xxAA

I am using example DFU project (bootloader_secure) from SDK (12.3). Chip 51822QFAA. My problem is that I cannot start to debug session in Keil5. Use JLink. I can program target(through J-Link interface) and start the application, but I ... (more)

17
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Last activity 2017-12-13 11:52:04 +0200 by karthikeyan

mpu 6050 with nrf52840

hi, i have downloaded nrf5-mpu-example sdk 13 from github. made necessary changes to work with sdk 14.2 for nrf52840. i have done it and the program is compiling without error. when i flash it in my dk. my LED1 ... (more)

22
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Last activity 2017-12-13 05:20:08 +0200 by coolboy

gyroscope services

hi team, i am using nrf52840. is there any hidden services placed in nrf connect app android for gyroscope or we want to create our own services. and also one doubt wat is the twi_scl and twi_sda pin for pca ... (more)

20
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1
answer
Last activity 2017-12-12 18:54:15 +0200 by Torbjørn Øvrebekk

esb and ble multiprotocol switch manually

Rather than using previous timeslot examples for esb and ble multiprotcol, can we manaully switch between both protocol, what kind of process need to switch from ble to esb and switch from esb back to ble

229
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4
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4
answers
Last activity 2017-12-12 13:13:36 +0200 by Hung Bui

change phy in mesh

I'm working with the nRF52840 PDK and I'm wondering how to change the PHY (preferably to CODED) in a Mesh. Has that been implemented yet? Or when can we expect this feature?

32
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Last activity 2017-12-12 12:34:15 +0200 by nar0909

How to write an iOS app for a simple BLE - UART in swift?

Hi I'm trying to solve a problem as well as provide as a key reference to people who are looking to build their own custom made iOS applications using swift. I know there is plenty of references available for ... (more)

52
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2
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1
answer
Last activity 2017-12-11 14:35:50 +0200 by Ketil

BLE MESH and Proximity Monitor

Imagine I have developed a MESH made up of 50 Relay Nodes and I say only Relay Nodes because any of them must be able to relay and also able to initiate a message. In my application environment I need ... (more)

26
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1
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1
answer
Last activity 2017-12-11 13:21:42 +0200 by karthikeyan

having problem in services

hi team, i am using nrf52840. i have given permission to tx power read and write and also wrote on_write() in BLE_GATTS_EVT_WRITE. to control the bluetooth range everything works fine in tx power services. when i try to write all ... (more)

158
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1
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3
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Last activity 2017-12-11 12:08:30 +0200 by Dopler

Windows 10, Thingy 52 BLE

I'm attempting to write a plugin/dll to pull data from the Nordic Thingy52. I can scan all devices that are paired with windows 10, and load up the services, etc.

I can also read from descriptors that have ... (more)

33
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no
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1
answer
Last activity 2017-12-11 04:36:09 +0200 by coolboy

cant able to broadcast [closed]

hi, i am using nrf52840. with sdk 14.1. i am trying to broadcast my dk as beacon. with your neccessary examples. i have created my own services and started advertising. when i search my beacon through mobile app using ... (more)

30
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1
answer
Last activity 2017-12-09 04:18:36 +0200 by AlexB

Dont see "Nordic_UART" on my cell phone scan

I have nRF52840 dev kit and using SDK13. I flashed the ble_app_uart app from ble_peripherial directory, LED1 is slowly blinking when I do reset. I downloaded nRF toolbox to my android device, when I scan thru the app, I cannot ... (more)

89
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1
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2
answers
Last activity 2017-12-09 03:32:26 +0200 by embedded717

Not able to connect nrf52 dk board with mobile app

Hi, I flashed softdevice and ble_app_UART_c code. But after searching bt device, i could not find bt nrf52 device in mobile. Do i need to something more..

43
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no
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1
answer
Last activity 2017-12-08 11:01:33 +0200 by eyalasko

JLink fails to program PCA100028

Hi,

All of a sudden (isn't it always the case :) the JLink debugger fails to flash the app code to the dev kit (PCA100028) The Project's softdevice is flashing well without any problem and so does sample projects ... (more)

20
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Last activity 2017-12-08 07:43:28 +0100 by Sorrow91

Using FDS with BLE and Scheduler

Hey guys,

I'm trying to make the FDS work with BLE and the scheduler. But something doesn't right when I use the Softdevice and scheduler with the FDS.

Must I register something in my ble_stack_init(), I read something ... (more)

26
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no
votes
1
answer
Last activity 2017-12-08 03:36:42 +0200 by Justas

Error invalid parameter on charateristic add

Hello !

I'm struggling with my Bluetooth configuration on the NRF52832. I'm running with the latest SDK (14) and the S132 SoftDevice.

When I'm trying to add a characteristic to my service, I'm getting an error 7 ... (more)

80
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no
votes
2
answers
Last activity 2017-12-07 14:59:59 +0200 by David Edwin

nRF Sniffer wireshark bad interval connection

Hi all,

I'm using nRF Sniffer (2.0.0-1.beta), i didn't have any problem for follow connection between master and slave but now, I have a problem with time displayed in wireshark. My interval connection max is ... (more)

28
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1
vote
1
answer
Last activity 2017-12-07 08:12:08 +0200 by Petter Myhre flag of Norway

Can a BLE Peripheral Conditionally Reject Connection Request from BLE Central?

Without making use of white list approach, can a BLE peripheral reject connection request sent by a BLE central? I want my application layer to be notified when the BLE peripheral receives a request and let the user tap on ... (more)

68
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no
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1
answer
Last activity 2017-12-06 18:05:57 +0200 by Petter Myhre flag of Norway

Nordic Thingy 52 (ble6lowpan): unexpected interface down event while sending MQTT messages

Hi all,

We've tried to port IoT SDK features (IPv6 over Bluetooth low energy) to Nordic Thingy 52. As base, we use FW for Nordic Thingy 52 from GitHub We need to send MQTT messages from device to local ... (more)

49
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1
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1
answer
Last activity 2017-12-06 17:44:57 +0200 by Petter Myhre flag of Norway

Why is S132 BLE GATT Notification bandwidth spec'd as 16kbps not 24kbps?

The last table on the S132 Specification BLE "data throughput" web page lists the maximum GATT Notification send/receive rates as 16kbps when using an event length of 2.5ms and C.I. of 20mS.

A quick calculation suggests that ... (more)

28
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no
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Last activity 2017-12-06 04:08:29 +0200 by carlche

SDK 12.3.0 - why I must flash mbed build first to make SDK build work on nRF51 DK?

Hi there,

I wonder why I have to flash my nRF51 DK using mbed build first to make the SDK build work?

I received my 2 nRF51 DK today and I tried the first one in the following step using ... (more)

39
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1
vote
1
answer
Last activity 2017-12-05 15:02:24 +0200 by Petter Myhre flag of Norway

The function "sd_ble_uuid_vs_add()" gives error 4==NRF_ERROR_NO_MEM // No Memory for operation

Hi,

We need to develop the BLE project that works as master and slave (both roles together). For this purpose we took the “BLE_APP_HRS_RSCS_RELAY_PCA10040_S132 “ example project. This project works correctly, but it contains only the manufacturer defined services.

So we ... (more)

49
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no
votes
2
answers
Last activity 2017-12-05 13:46:46 +0200 by MPS

NRf Sniffer stops after Connect_Req

Hi,

I try to use sniffer (PCA10031 - V1.0.1_1111) between 1 NRF52 DK (PCA10040) with ble_app_blinky and 1 NRF52 DK (PCA10040) with ble_app_blinky_c. After choose "Nordic_Blinky", I start Wireshark with "W". I can see advertising but when I try ... (more)

73
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5
votes
2
answers
Last activity 2017-12-05 11:42:03 +0200 by Mathias

Get physical source of intermediate relay messages

Hi!

I have a question about the Mesh SDK. Is it currently possible to get the physical source of a relayed message (thus the relay that send it) out of it? I only seem to able to get out the ... (more)

68
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no
votes
1
answer
Last activity 2017-12-05 10:01:51 +0200 by adrisecmotic

Low power problem with GPIO, I2C and SPI in nrf52

Hi all, we have a problem with a project based in nrf52832 and a custom board. The project is based in "ble_app_uart" example, and also we have the following sensors:

Accelerometer gyroscope and magnetometer (BMX055 from Bosch: datasheet) Ultraviolet sensor ... (more)

53
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no
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no
answers
Last activity 2017-12-05 08:12:11 +0100 by Boris

Current Date Time caracteristics

Hi, everyone, I develope the project with BLE support. In my project I need to define the time server. For this purpose I tried to find any example reffered to it, but no example was found neither in your project ... (more)

64
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no
votes
1
answer
Last activity 2017-12-04 14:08:18 +0200 by Torbjørn Øvrebekk

Direct Advertising with Arduino IDE

Hello,

i would like to connect two Redbearlabs Nano v2 just with eachother. The central one connects just to the peripheral, but the peripheral is still open for every device. So i want to use direct advertising and give the ... (more)

32
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no
votes
1
answer
Last activity 2017-12-04 13:12:04 +0100 by Martin Børs-Lind flag of Norway

BLE connection handle value scope

I would like to use connection handle value as index to an array which store some per connection specific data. Some questions about connection handle:

  1. is connection handle value allocated by SD continuous?

  2. Suppose 6 connections has been established, and ...

(more)

16
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no
votes
1
answer
Last activity 2017-12-04 11:02:40 +0100 by Martin Børs-Lind flag of Norway

find_adv_name() errors

The function find_adv_name() found multiple time in BLE central examples is using the global variable m_target_periph_name instead of the parameter name_to_find. There is also some instance of the function checking the size of the name but some other are missing the check.

64
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no
votes
1
answer
Last activity 2017-11-30 14:40:11 +0100 by Ketil

Adding Server to Light Control Mesh Example

How do we go about adding servers to the light control example i.e. I would like to control 50 servers via one client. What needs to change in the code besides SERVER_COUNT below:

#define SERVER_COUNT (3)
#define CLIENT_COUNT (SERVER_COUNT + 1)

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