Nordic Blog

Obligatory Disclaimer Security is hard. If a product handles sensitive information then it is the engineer's responsibility to his customers to consult a security professional. However, experimenting with security should be encouraged whenever possi...

Communicating with Ultrasonic Distance Sensor HC-SR04 using nRF51-DK (nRF51822/nRF51422), and transmitting measured distance over BLE UART. http://electronut.in/nrf51-hcsr04/

The nrf52832 is quite a competent System on Chip. Even with the long list of errata for the preview release this chip packs a punch. I've been playing around with this chip for sometime now and have made Github repository for anyone looking to get s...

Recently, there are a few queries from Japanese customers on nRF51 production. Basically the expectations are - Program the flash as a whole, including bootloader, application and soft device - Target starts up as application not bootloader I ...

Introduction This blog will aim to give you an understanding of the zip package required to perform a Device Firmware Upgrade of your device. This blog will apply to the newest tools available to do this, including the SDK, the mobile app, or the ma...

A simple example of using PWM with softdevice S110 using the Nordic nRF51-DK. I have tried to remove all unnecessary layers (like the Nordic BSP support) to make this example simple to understand. http://electronut.in/nrf51-pwm-test/ UPDATE: I hav...

What, How and Why? The aim of this project was to create the system facilitating the management of big conferences. The first step was to think what a potential end user would like to achieve by using this kind of system. As the result of this ...

The role of this device is remote measurement environment parameters. It could be accessed anywhere where access to the internet is possible. It uses 6LoWPAN because it's modern IoT technology and have big capability. It is satisfying to create ow...

I've written up a note on programming external nRF51822 boards (like the RedBearLab Nano) using the SWD interface of the nRF51-DK. http://electronut.in/nrf51-dk-external-programming/

I've written up a simple project that uses the nRF51-DK to send LDR light levels over BLE using the Nordic UART Service (NUS). In the process, I have set up a cross-platform toolchain (OS X, Windows) using GCC. Hopefully this will help some like me i...

Hello everyone, I've started an nRF52832 library for those devs who are interested in creating their PCB's in Eagle. Its the QFN chip right now. I read somewhere that a BGA version is planned also, so I'll try to add that in the future. It's locat...

Last week I attended what was my first Startup event, but after experiencing the energy there, I can safely say it will not be my last. 3 days of seminars, networking and lots of fun kicked off in Bergen last Wednesday. It was an eclectic mix of en...

The purpose of this blog is to provide a step by step guide to help a developer, starting off with the Nordic Semiconductor nRF51 DK, get the tools installed and get the software (SW) development environment setup so that the user can start developin...

This post started as a question, but got the suggestion to post this as a blog post. Here it is. I have been trying to get QtCreator configured such that I can use it as my IDE for the nrf51822 on Mac OSX. I use the NRF51DK as hardware, but also had...

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We have been receiving quite a few questions about the compatibility issue between the bootloaders from different SDK versions and the DFU master such as nRF Master Control Panel, nRFToolbox, etc. In this post, we will try to explain and give you in...

The first version of Nordic IoT SDK has been released over 6 months. Till now, there have been no well-known router solutions supporting Bluetooth Low Energy over IPv6. This made us the BLE application developers holding back from considering IPv6 in...

We are now releasing the S110 7.3 (s110_nrf51822_7.3.0). This is a new production release in the S110 7.x series. (It will be uploaded today or early next week.) This is a bugfix release - as the release notes say, it fixes an issue where the Soft...

Hi, I attached here some slides that we used in our technical seminar for Device Firmware Update. Download the presentation here: DFU_SDKv8.0_Pub.pdf The presentation covers: What DFU is and what bootloader does Two types of DFU, single bank a...

Wireshark (version 1.12.5 at the time of writting) lists MQTT as supported protocol but could not parse it from the TCP payload by default. We can add some plugins to enable it. Download the Wireshark Generic Dissector (WSGD) for Windows or Linux, w...

The RADVD deamon in Raspberry pool is version 1.8.5 (up to Raspberry 2015-02-16). root@raspberrypi:~/radvd# apt-cache policy radvd radvd: Installed: 1:1.8.5-1 Candidate: 1:1.8.5-1 Version table: *** 1:1.8.5-1 0 500 http://mirror...

In SDK v8.1 we added the TWI driver (nrf_drv_twi.c). Unfortunately the nrf_drv_config.h file wasn't updated correctly with the new driver. The symptom is the error with "TWI_COUNT is missing". Here is what should be added to nrf_drv_conf...

If you are looking for a place to get started with DFU, please have a look at this presentation here and the tutorial here. In this post, we cover some in depth Q&A topics regarding Device Firmware Update. Questions: A. What happens if som...

One way to program the nRF51822 Bluetooth Smart Beacon Kit is to use the nRF51 DK. This gives you a full scale development platform (the nRF51 DK). This blog will go thru the steps needed to program the softdevice and upload the application. If...