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133 blog posts in group Nordic employees

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by Pär H

Introducing nRF5 SDK for Mesh

The day after the Bluetooth SIG announced the 1.0 spec of the Bluetooth mesh we are happy to announce the nRF5 SDK for Mesh for our nRF51 and nRF52 Series SoCs. This first (v0.9.1) release is packed with new features and concepts for Bluetooth.

What is Bluetooth mesh? The mesh capability is a significant update and enables a radical new approach to making Bluetooth applications. With this update to Bluetooth, there are significant changes and many new concepts to learn for developers and product makers. From a holistic point of view, mesh enables Bluetooth to expand its...

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by Aleksander Nowakowski

nRF Connect macros (currently Android only)

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 time to show couple of buttons that interact with a device was costly and boring. A more generic and easy to use solution was required.

Automated tests

Our first approach, the automated tests, allowed to prepare an XML script with sets of operations that were automatically performed producing a report as a result. Automated tests appeared in nRF Connect for Android (known back then as nRF Master Control Panel...

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by Krzysztof Loska

Unique Thread/Bluetooth multiprotocol solution with nRF5 SDK for Thread and nRF52840 SoC by Nordic

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 2.4 GHz protocols. In March 2017, we released our first software solution running on top of the IEEE 802.15.4 PHY - nRF5 SDK for Thread in version 0.8.0, supporting the OpenThread stack.

Multiprotocol with nRF5 SDK for Thread

Since nRF52840 supports multiple radio protocols, applications running on this SoC can use several radio protocols. With the release of nRF5 SDK for Thread in...

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by eivinds

Nordic Thingy:52 node.js/Raspberry Pi demos

Our brilliant apps engineers continue to play around with our newly-launched Nordic Thingy:52. This time, Joakim has prepared a few Javascript demos using node.js and a Raspberry Pi.

The Thingy connects to the Raspberry Pi with Bluetooth and uses it as an internet gateway. The Raspberry Pi runs the node.js scripts. The provided examples, which you can download below the video, include:

  • An example where all environmental sensor data is pushed to an online Firebase database.
  • An IFTTT example, where data form the Thingy triggers actions online.
  • An internet radio streaming example, where internet radio is streamed...
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by John Leonard

Nordic Developer Zone celebrates its 4th year of helping developers succeed

Nordic Developer Zone - The Nordic developer’s best friend

The original goal of Nordic Developer zone was to create a resource for our customers that would complement direct Nordic technical support. It should simplify and help them with their design efforts. It should be a place where everyone can contribute, Nordicers and our customers and partners alike. It had a simple mantra – ‘Ask questions, share info, and be inspired’. As Nordic Developer Zone enters its 4th year, we can safely say it is achieving what we set out for it to do.

The ultimate Nordic FAQ resource

As of today...

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by Reidar Martin Svendsen

Introducing Nordic’s new software licensing schemes

We are very excited to inform you that we have introduced our new software licenses with the release of SDK v13.0. The new licenses are based on the well-known BSD license class and give more flexibility and freedom to customers while still protecting Nordic Semiconductor’s intellectual property and brand.

Software licenses are usually not the most riveting of reads and most people tend to click the ‘I Agree’ button without reading what they have agreed to. The licenses we have now introduced are very easy to read and understand, so take a few minutes to read through them...

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by gamnes

Serial Wire Debug Port Interface for nRF52832

1.1 Description

This documentation describes the use and initialization of the Serial Wire Debug Port (SWDP) interface when writing to or reading from Flash and SRAM of the nRF52832 Rev 1. See http://infocenter.nordicsemi.com/ for more information on the IC itself.

DISCLAIMER: Not all content of this document has been verified and hence there might be some errors and flaws in the descriptions/information that follows. Please confer with the official ARM documentation to verify the information as described here. This information is provided in order to help during the implementation of a SWD debugger, but the...

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by vich

nRF52840 GATT Data Throughput with Zephyr RTOS

Nordic has recently contributed support for the 2Mbit/s PHY, part of the Bluetooth 5.0 specification, to the Zephyr Project RTOS.

The video below shows how to configure, build and test GATT data throughput on a nRF52840 SoC running Zephyr RTOS.

The throughput measured may vary depending on the environment, but the maximum throughput observed in this video is around 1398 Kbps. Feel free to try it out yourself and join us with feedback and contributions to the Open Source project.

Our initial blog post about the Zephyr Project, complete with instructions to set up a Zephyr environment to...

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by John Leonard

Bluetooth 5 2Mbps Demo with nRF52 Series and Samsung Galaxy S8

Bluetooth 5 - now arriving in smartphones

As we know, Bluetooth 5 was launched last December by the Bluetooth SIG. The nRF52 Series from Nordic have always had Bluetooth 5 and its arrival in the mix for the nRF52 Series and this family of SoCs was designed early on to be able to meet the exciting new features of Bluetooth 5. Smartphones play such a key role in most Bluetooth products that their adoption of new Bluetooth features is always eagerly anticipated, as this is fundamental to the use of new Bluetooth features.

The Big News: Samsung Galaxy S8 supports Bluetooth...

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by Radosław Koppel

FreeRTOS threads preview with J-Link, GDB/Eclipse

Short note how to make FreeRTOS program debugging with eclipse little simpler.

If you are looking the information how to configure the whole environment see this post: https://devzone.nordicsemi.com/tutorials/7/development-with-gcc-and-eclipse/

What we get out of the box

Most low power applications stays most of the timer in idle. Ideally it would be tickless-idle. The problem begins if our program behaves strangely and we would like to stop it and check what is going on.

Lets get blinky_freertos example. Run it and halt just in random moment. Until you are very lucky you would stop somewhere in...

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by eivinds

Taking a deeper dive into Bluetooth 5

image description

The first in a series of blogs that will help educate on what is most important about Bluetooth 5 and take you deeper into the details of how it works and how you can benefit most from using it.

Taking Bluetooth further, faster

Bluetooth 5 has been with us for a few months now and is proving to be as exciting in the world of Bluetooth developers we talk to as it was to us when the specification was proposed. With its core additions of considerably longer range (x4), doubled throughput and improved broadcasting bandwidth, it is no exaggeration to...

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by Håvard

Logging enabled by default in SDK Bluetooth examples

Several users have pointed out a sudden flash size increase in some of our Bluetooth examples. We decided to write a quick post here to describe the reason for this and explain how to decrease the size of the examples.

The reason for the size increase is that we added our logging module to the examples in question. Simply disable the module to decrease the size again. Logging can be turned on or off in sdk_config.h. This header file is included in all BLE examples. Remember that you can edit sdk_config using the configuration wizard.

Some examples use logging...

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by Daniel Veilleux

Monitor Mode Debugging with J-Link and GDB/Eclipse

The biggest pain point when debugging an application on the nRF51 series is the inability to set breakpoints while the SoftDevice is active without triggering an assert. Although a workaround exists that allows the debugging process to limp along for a short amount of time after the SoftDevice complains, using breakpoints with the nRF51 is inevitably a disruptive process.

Thankfully, the nRF52 series includes support for a neat feature called Monitor Mode Debugging. When this feature is enabled, the processor will trigger a specific interrupt handler (DebugMon_Handler) instead of halting when a breakpoint is reached. This DebugMon_Handler then spins and...

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by Hung Bui

Getting started with Nordic's Secure DFU bootloader, a step by step guide

Content of this blog based on the documentation of BLE Secure DFU example and Bootloader module library in our SDK. Here we provide you with step by step introduction to make it easier to follow and test Secure DFU.

The Secure DFU is the new DFU bootloader provided from nRF5 SDK v12. The old bootloader in SDKv11 and earlier is now called Legacy DFU. Secure DFU is not backward compatible with Legacy DFU.


What you would need to prepare before we start:

  1. Up to date nRF5 SDK (minimum SDK v12)

  2. Python with pip installed. See here if you don't...

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by Ole Bauck

Throughput and long range demo

The new Bluetooth 5 specification promises twice the speed and 4 times the range. Doubling the speed is achieved by increasing the on-air datarate to 2Mbps, while quadrupling the range is achieved by lowering the bitrate to increase the sensitivity of the receiver. We at Nordic have made a demo showing these features with our newest SoftDevice(s) and specifically our newest chip, the nRF52840. It was showcased at CES 2017 in January.

Here is a more in depth description of the demo.

The demo is based on the ATT_MTU throughput example in SDK 13.0.0-1.alpha, which allows...

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by Ole Bauck

nRF52840 long range demo

In December we published a video showing a long range test with the newly released nRF52840 chip. The video showed that the nRF52840 had excellent range, and is fully compatible with the new Long Range feature of the just released Bluetooth 5 specification. This blogpost will go into more details about how this test was done. Below is the video for those that have not seen it yet.

The setup consisted of two nRF52840 Preview Development kits, one transmitter (TX) and one receiver (RX). Both kits were connected to a GPS module using serial communication (UART). The DK on the...

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by Pär H

New NFC feature on nRF52 Series: Read/write capable Type 4 Tag NFC library in nRF5 SDK.

The nRF52832 and nRF52840 devices have a built-in NFC radio which can be used for exposing data as a dynamic NFC tag (a tag with configurable data). This can be used as a standard tag type for storing a web link or a text, to launch apps on smartphones and tablets as well as for simple and secure BLE pairing (read more here). All these features are provided by the Type 2 Tag library in the nRF5 SDK. Starting from version 12.2 of the nRF5 SDK, we expanded the NFC software to support even more features. The new Type...

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by Daniel Veilleux

Simple Application-level Authentication

Introduction

There is a use case that I've seen several times recently that I find interesting due to the fact that its security requirements aren't directly addressed by the Bluetooth Low Energy (BLE) standard. It goes something like this:

I have a BLE device that multiple users can interact with. Although most of the BLE characteristics should be open, one or more 'admin' characteristics should only be modifiable if the user has permissions to change them.

I will present a simple solution using the nRF52832 with the S132 SoftDevice.

Overview

The 128-bit AES ECB peripheral provides a secure...

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by Carles

nRF5x support within the Zephyr Project RTOS

image description

The Zephyr Project RTOS

The Zephyr Project RTOS is a recent effort by the Linux Foundation to provide the embedded world with a free, secure and fully-featured Real Time Operating System. It is designed from the ground up to be a modern, scalable, secure and responsive RTOS with a clear focus on IoT protocols and foundations. This open source RTOS is Apache 2.0 licensed and has a fully open development model

Recently Nordic contributed ports to all of our Cortex-M based ICs (nRF51, nRF52832 and nRF52840) as well as a fully featured, open source BLE Controller (Link Layer + HCI...

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by Pär H

New power optimization tool called Otii that runs on the Power Profiler Kit.

It´s exciting to see that our friends at Sony Mobile Research and Incubation have released a desktop application called Otii, which supports our Power Profiler Kit. The beta version of the Otii application is cross platform and runs on Windows, Linux, and macOS. It is straight forward to install and use with the Power Profiler Kit connected through a regular USB cable.

With Otii you get a nice tool for finding out what parts of your software that is the cause for certain power consumption related behaviors. Besides all the perks of customizing your PPK measurements as in nRF6707-SW...

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