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140 blog posts in group Nordic employees

by gamnes

How to interface a Nordic Thingy:52 using Amazon Alexa

Interfacing the Nordic Thingy:52 from the Amazon Alexa Voice Service just had to be done! In this blog post I will briefly explain how this demo was set up, but I will direct you to the GitHub page if you need more detailed information than what i provide here.

Please have a look at the following GitHub repository for a thorough explanation on how to set this up, and how it all works:

There is also this youtube clip that shows the system in action:



by Martin Børs-Lind

Difference between nRF52840 Engineering A and B reference designs

After the release of nRF52840 Engineering B we have received several inquiries about the difference between Engineering A (nRF52840-QIAAAA) and Engineering B (nRF52840-QIAABB) reference designs. One reason for the inquiries is that after swapping Engineering A with Engineering B samples customers experienced that the radio stopped working. The symptoms being that everything but the radio seemed to work in their application.

While this is highly unfortunate, it is to be expected because there was a vital design change in Engineering B. In Engineering A the two DEC2 pins (pin E24 and A18) and the DEC6 pin (pin B5) were internally...

by Daniel Veilleux

Show And Tell: Poly - Building an RC Airplane The Hard Way

I've been looking for an excuse to write a low-latency, Enhanced ShockBurst (ESB), radio protocol that I can reuse when building remote control toys. Although Bluetooth is great for a lot of use cases, working with the Nordic radio's proprietary mode offers additional flexibility -- in this case, this means achieving lower latencies and streaming packets in a UDP-like manner (versus BLE's reliable transport). I recently found an opportunity to scratch this item off my list when the girl agreed that it would be fun to surprise my nephew by turning one of his giant, polystyrene gliders into...

by Krzysztof Chruściński

New Command Line Interface and enhanced Logger - part 2.

If you haven't yet get to know command line interface (nrf_cli) module significantly improved in nRF5 SDK 14.0.0 please check this blog post: New command line interface - part 1

Enhanced logger and console

It seems like a natural fit to use the console as a way of presenting logs to the user, as well as configuring which logs should be printed, to avoid flooding the console with logs. There are other natural fits for the logger, like storing logs to non-volatile memory, so logger could not be tightly coupled with the console. On the other hand, it...

by gamnes

Nordic Thingy:52 Raspberry Pi Python Interface

Thingy:52 Python Raspberry Pi Interface

This blog is a follow up to both the Nordic Thingy:52 node.js/Raspberry Pi demos and the blog posts. It will go through how you can set up and develop Python Thingy:52 applications on the Raspberry Pi.

Raspberry Pi Setup

Please follow the setup as explained in Node.js walkthrough to make sure the Raspberry Pi is setup as assumed for this blog post. We will be running the Raspbian operating system.

Running the Example

GitHub Clone

UPDATE: The Thingy:52 Raspberry Pi python...

by gamnes

Walkthrough of Nordic Thingy:52 Node.js Raspberry Pi demos

Thingy:52 Node.js Raspberry Pi Interface

This blog post is a follow up to the Nordic Thingy:52 node.js/Raspberry Pi demos blog post, and will described how you can run and what to expect from each of the Node.js examples that have been provided in the GitHub repository. It will also described an additional example of how you can use the Node.js library to post a tweet based on sensor data.

If you are looking for a Python interface instead of Node.js, please have a look at the following blog post for some more...

by Eirik Midttun

Things you should know about Bluetooth mesh

Bluetooth SIG has recently published a new standard, the Bluetooth mesh. The mesh capability is a significant update and enables radical new applications. This in turn means that there are significant changes, and many new concepts to learn for developers and product makers. Knowing the technology well is key if you want to succeed with mesh, or any technology for that matter.

It is futile to summarize mesh in a blog post, so the aim here is to give you a rough understanding of what Bluetooth mesh is designed for, some of the new concepts, and things that are important...

by Jakub Rzeszutko

New Command Line Interface - part 1.


With nRF5 SDK v14.0.0, we have significantly refactored the Command Line Interface (CLI) module to make it more useful and user friendly.

The new CLI has the following features:

  • Support for multiple instances.
  • Advanced cooperation with the nrf_log.
  • Support for static and dynamic commands.
  • Smart command completion with the Tab key.
  • Built-in commands: clear, colors, history, and resize.
  • Viewing recently executed commands using the Up/Down keys.
  • Text edition using Left/Right/End/Home/Insert keys.
  • Build-in handler to display commands help.
  • Support for multiline commands.
  • Support for ANSI escape codes for cursor control and color printing...
by eivinds

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...

by Aleksander Nowakowski

nRF Connect macros (currently Android only)


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...

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...

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...
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...

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...

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 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...

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...

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...

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:

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...

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...

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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