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Zephyr is not able to advertise and keep central connections after "bt_conn: Unable to allocate TX context" 0

Hi everyone. I catch a terrible issue When I use nrf52840 and NUS Android app and had for a short time a bad rssi (because of long distance between Android and SoC) and...
665 views

0 replies

Started over 2 years ago
by qwertynoon
Not Answered
Using irk to get private mac-address 0

Hello We need to scan for more than 8 devices, so we can't use witelist directly. We have an idea to use presaved IRK and mac-addresses and use scanning without witelist...
551 views

0 replies

Started over 2 years ago
by Vitaliy
Not Answered
Issues with getting custom board to enter DFU mode for flashing with mcumgr 0

Problem solved :)
553 views

0 replies

Started over 2 years ago
by nRF60D
Not Answered
Zephyr keyboard driver 0

Dear Nordic, Do we have ready-to-use keyboard driver with scanning/debouncing? I've not found an example or docs about using KSCAN with gpio-connected keyboard...
- development
- software
- nrf5 sdk
- zephyr
- nrf52840
486 views

0 replies

Started over 2 years ago
by Dmitry Kr
Not Answered
Ztest of bluetooth 0

Hi, i need to run this ztest for bluetooth , kindly guide me . link - Nordic\v1.9.1\zephyr\tests\bluetooth\bluetooth Regards, Shikamaru
368 views

0 replies

Started over 2 years ago
by Shikamaru

Recent in Nordic blog

nRF Connect macros (currently Android only)

Aleksander Nowakowski

Motivation Very often, while working with Bluetooth LE devices, we encountered a problem having to repeat a sequence of operations to test or demonstrate some functionality. Writing a mobile app every…
- 14 Jul 2017
Unique Thread/Bluetooth multiprotocol solution with nRF5 SDK for Thread and nRF52840 SoC by Nordic

Krzysztof Loska

With the nRF52840, we released our first System-on-Chip (SoC) with a radio that is capable of running the IEEE 802.15.4 PHY, additionally to Bluetooth 5 (Bluetooth Low Energy), ANT+, and proprietary 2…
- 14 Jul 2017
Power Optimization — From 3 to 7 Months on a Single Charge

Yaniv Nis

A case study on optimizing battery power consumption for CC2538 but can also apply for nRF52 based device - https://medium.com/jumperiot/power-optimization-from-3-to-7-months-on-a-single-charge-56de0c30f062…
- 10 Jul 2017

Latest guides

Bluetooth low energy: Bluetooth low energy Services, a beginner's tutorial

MartinBL

Before we begin Scope Topics that will be covered include: Before we begin Necessary equipment and software Necessary prior knowledge Some basic theory The Generic Attribute Profile (GATT) Services…
- 26 Aug 2015
Software Development Kit: Setting up the Timeslot API

Hung Bui

Setting up the Timeslot API When you want to use the radio while still maintaining a BLE connection or have a task that you need to do uninterrupted by radio activity, you can set up a timeslot. The timeslot…
- 27 Jul 2015
Software Development Kit: Radio Notification

Øyvind Karlsen

Radio Notification In this tutorial we will set up a beacon example and modify it to use radio notification. Then we will use radio notification to light a LED when the radio is transmitting. While this…
- 17 Jun 2015
Software Development Kit: Board support package (BSP)

Øyvind Karlsen

Board Support Package In this tutorial we will use the Board Support Package to control hardware peripherals on the nRF51 or nRF52 DK. Required tools Keil 5.20 nRF SDK 11 nRFgo Studio 1.21.…
- 8 Jun 2015
nRF5x: nRF51 series current consumption guide

Stefan Birnir Sverrisson

nRF51 Low power modes and power profiles documentation The low power modes for the nRF51 series are System On and System Off. You can read about them in the nRF51 Series Reference Manual v3.0 sections…
- 1 Jun 2015
Software Development Kit: Setting up device firmware update(DFU) on the nRF5 DK

Stian Røed Hafskjold

###Note: This tutorial is for the legacy DFU module included in SDK version 11 and earlier. To get started with the new DFU included in SDK 12 and above, please see the SDK documentation in the Infocenter…
- 1 Jun 2015