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Last activity 2017-11-14 13:38:41 +0200 by Bjørn Kvaale

How to measure battery life time

Hi,

We have devloped PCB based on nrf52832 as beacon.

We have also developed firmware for that and it will advertise for some and than go to sleep mode and after some time it again advertise(To save battery consumption ... (more)

36
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no
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1
answer
Last activity 2017-11-13 14:03:25 +0200 by Petter Myhre flag of Norway

PIN access on app for BLE device

I would like to know how to create a prompt that asks for a PIN before a user gets access to pairing to a BLE peripheral. Currently I'm using a CurieBot and once it's found via the app ... (more)

553
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1
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1
answer
Last activity 2017-11-02 11:29:28 +0200 by Jørgen Holmefjord flag of Norway

Ble_app_beacon and nrf52840

Hi,

I have downloaded the latest nrf52 v13 sdk. And i am using nrf52840 PDK.

And i would like to use the beaco_n example. But i am seeing that the ble_App_beacon folder does not contain the hex files for pca10056 ... (more)

86
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no
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1
answer
Last activity 2017-10-24 09:23:28 +0200 by Bjørn Kvaale

Sending data to Arduino 101

I would like to start off by saying I am not a very experienced programmer and I only have base knowledge of Java and Android Studio. Furthermore, I have no experience in Bluetooth communication or BLE. I've done a ... (more)

106
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1
vote
2
answers
Last activity 2017-09-07 19:00:23 +0100 by Al

Whats the minimal time required to advertise, connect and transfer the smallest packet using BLE Beacons?

Thanks for your help עוטד. I want to use BLE / beacon technology in order to track items that pass-by in high-speed and close proximity (0.5m). This means I only have a few ms (1-100) in order to track the ... (more)

44
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Last activity 2017-08-30 17:55:01 +0200 by gkitteridge

Attaching Interrupt increases power to 200uA [closed]

I have a very simple test script which enables a BLE service (only the Generic Access and Attribute), advertises and waits for connection. It also sets four pins to input pins. I am using the Arduino environment and a MDBT40 ... (more)

63
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3
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1
answer
Last activity 2017-07-26 15:37:41 +0100 by Hung Bui

Can a BLE Peripheral cancel its own notification before a transmission event?

I'm having trouble with my UWP Central/Client application, and I want to see how it responds to modified Peripheral/Server behavior.

How my large (several kB) reads are done is by having notifications enabled, then repeatedly calling sd_ble_gatts_hvx ... (more)

41
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1
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1
answer
Last activity 2017-06-26 12:59:47 +0200 by Hung Bui

NRF8001 set Service data in advertisment packets

Hi, I need to set dynamic advertisement data with nRF8001. To achieve this with nRFgo Studio my idea was to set "Service Data" in "Selected fields to advertise" (ACI Bond for example) within GAP settings, create characteristic with property "Set ... (more)

65
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Last activity 2017-04-24 12:30:14 +0100 by Vivek

Source code needed for ble Connection, RX and TX services.? [closed]

I have used following sources for my application:

  1. profile: -BleManager, -BleManagerCallbacks, -BleProfileService
  2. uart: -UARTService -UARTManager, -UARTManagerCallbacks, -UARTInterface

The above source code i have taken from nRF-Toolbox . So i wanted to know is these source are enough for ble Connection, RX ... (more)

140
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no
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2
answers
Last activity 2017-04-08 16:52:57 +0200 by Zhiqun Zhang

Ble ECG program and configuration using nrf52832

is there a tutorial for Ble ECG program and configuration using nrf52832? I want to make integration from heartbeat sensor to nrf52832, make nrf52832 connect to computer using Bluetooth and make simulation using Matlab and get signal ECG

216
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no
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2
answers
Last activity 2017-03-20 09:58:47 +0200 by etienne

GATT CONN TIMEOUT after rejecting connection parameters update

Hi folks,

We got a weird behaviour with our nrf51822(SDK 12.2.0, s130) device. we have built a low power application with following parameters: 1. MIN_CONN_INTERVAL 200ms 2. MAX_CONN_INTERVAL 400ms 3. SLAVE_LATENCY 3 4. CONN_SUP_TIMEOUT 6s

One of ... (more)

61
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no
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1
answer
Last activity 2017-01-05 16:36:13 +0100 by Sigurd flag of Norway

Sony Xperia Z5 Compact RSSI is null if setReportDelay() is used

Hi together,

I'm trying to scan for BLE Beacons and I got the problem that if I set setReportDelay() to a value unlike zero, the onBatchScanResults() method is called and all RSSI values are null.

If if set setReportDelay ... (more)

518
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8
votes
1
answer
Last activity 2016-12-06 18:40:49 +0200 by davman

First BLE product

My company is in the final stages of prototyping and we want to release our first product in the coming year (focusing on European and American markets). The next steps are to get all necessary certifications to sell the device ... (more)

121
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no
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no
answers
Last activity 2016-11-23 17:22:06 +0200 by Badred

Extracting the nRF chip on PCB

Hello,

We would like to extract the SoC to be used in our customized PCB design to communicate with a phone app via BLE. I wonder if there is a module that can be integrated automatically to a PCB with ... (more)

75
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no
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no
answers
Last activity 2016-11-09 11:11:31 +0200 by Nik

I am using NRF51822 BLE and sdk version is 11.0. But my BLE gets disconnected from my Central iOS app when app goes into background ?

Description: I am developing iOS app which will connect BLE and keep the connection till user don't want to disconnect. i.e we want to autoconnect BLE when BLE is in range and when BLE is out of range ... (more)

1k
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no
votes
1
answer
Last activity 2016-10-25 13:27:30 +0200 by Kristin flag of Norway

NRF52832 BLE Certification

NRF52832 is bluetooth pre approved SoC. So still need to pay Buetooth SIG to sell my Bluetooth based product in INDIA ??? Can i Sell non Certified product Without FCC CE in india and non certified Bluetooth ? Is there any RisK ??

369
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no
votes
1
answer
Last activity 2016-10-06 17:19:44 +0200 by Stefan Birnir Sverrisson flag of Iceland

Current peak on nRF52

Hi, I make some tests on power consumption of nRF52 with evaluation board and I remark some peak on the current. it's appeared that this peak is generate by DEC4 output (see picture below. current in pink and Vdec4 ... (more)

326
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1
vote
1
answer
Last activity 2016-09-26 20:32:45 +0200 by Sigurd flag of Norway

Configurable Bandwidth and Packet Count

Hi

With the introduction of softdevice v2.0.1, the connection bandwidth has become configurable to be low, medium, or high; and can be specified independently for TX And RX. What is the maximum number of full length packets for each configuration?

562
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no
votes
1
answer
Last activity 2016-08-15 10:56:50 +0200 by Petter Myhre flag of Norway

Change the advertising data of Beacon using raspberry pi.

Hello, I'm trying to do something like ibeacon where data is pushed to any device listening, but I want to update the advertising data from raspberry pi 3 since it supports BLE. Is there a script that I can ... (more)

235
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4
votes
1
answer
Last activity 2016-08-08 14:46:29 +0200 by Petter Myhre flag of Norway

nRF Connect app able to connect without being prompted for passcode

I managed to enable pairing without bonding on ble_app_uart by porting peer manager over from ble_app_gls. I am using SDK11 s130 on nRF51-dk.

I observed some strange behavior on ble_app_uart using different Nordic Android apps.

When I connect nRF UART ... (more)

994
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1
vote
1
answer
Last activity 2016-07-27 17:07:11 +0200 by Ole Bauck flag of Norway

Current consumption in nRF52832

We are a newbie team developing some measurement tests with the nRF52832 DK in order to evaluate the BLE from nRF52832 QFAA80 (s132 and pca10040) for IoT applications.

Using the ble_app_beacon to measure the current consumption while nrf52832 is advertising ... (more)

501
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2
votes
2
answers
Last activity 2016-06-21 12:13:53 +0100 by Kristin flag of Norway

scatternet topology vs ble stack

Hi Team,

image description

Which stack supports operation (c) shown in the diagram (taken from specs)?

Regards, Milan J

42
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no
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no
answers
Last activity 2016-06-06 13:46:02 +0100 by anup gupta

Scanner Delegate is not working

Hi, when i m using only Proximity . when I use - (void) centralManager:(CBCentralManager) manager didPeripheralSelected:(CBPeripheral) peripheral; this method in ProximityViewController it not work. because when this method is calling from ScannerViewController it not redirect to me at ProximityViewController so ... (more)

362
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no
votes
1
answer
Last activity 2016-05-09 18:02:00 +0100 by Torbjørn Øvrebekk

Connection latency between several BLE devices

Hi all,

I would like to setup a system where a single central BLE device (a smartphone) has to talk sequentially to several BLE perihperals (Nordic chips).

I need to send data to all the BLE peripherals, say 8 of ... (more)

347
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no
votes
1
answer
Last activity 2016-05-02 15:44:28 +0200 by Aleksander Nowakowski

How to detect BLE beacons on Android tablet.

Hello, Dear Nordic Development Team.

Recently I made the Android app using nRF nordic SDK to detect BLE beacons(iBeacon and Eddystone). (no.nordicsemi.android.support.v18:scanner:0.1.2) The app works fine on Android phones. But it ... (more)

791
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no
votes
no
answers
Last activity 2016-02-29 13:16:24 +0200 by Javier

problem with gpiote interrupt [closed]

I ´m testing gpiote interrupt, i´m work with nrf51-dk, softdevice S110 and sdk 9.0.0.

I have a pin that receives a signal 0 all time, and it changes to 1 when I have to do some tasks ... (more)

602
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no
votes
1
answer
Last activity 2016-02-22 11:10:05 +0200 by run_ar

what should I provide for DTM tests

Im trying to provide DTM functionality for certifications tests. I can't setup an UART interface, I found the below code which tries to use DTM without UART. it uses channel variable to change the frequency.

 static uint8_t packet[256 ...
(more)

277
views
3
votes
1
answer
Last activity 2016-02-19 14:57:12 +0200 by wolf661

nrf8001 master slave

Hello, i'm working with nrf8001 right now. I know that nrf8001 can work like Peripheral(slave) device. This is working ok. Im wondering if it is possible for nrf8001 to work like master device. My question is. If i ... (more)

516
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no
votes
no
answers
Last activity 2016-01-15 16:06:16 +0200 by George

nrf51-DK fail.txt "TIMEOUT"

I am using my nrf51-DK with mBed for prototyping. I noticed recently, that the DK had stopped broadcasting a BLE service, so I followed instructions to update the firmware in the hope to reset anything that was broken when I ... (more)

360
views
1
vote
1
answer
Last activity 2015-11-18 20:45:01 +0200 by shibshab

Using nRF-Sniffer with BLE MAC Address Randomization

When building a solution that supports Bluetooth MAC address randomization are there any options available in nRF Sniffer to allow packets to be captured. e.g. potentially allowing a range of MACs to be captured or capturing MACs flagged as ... (more)

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