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...

Bluz is a brand new development kit that brings Bluetooth LE to the internet. We have paired up with Spark and ported their FW to the nrf51822, allowing Bluz to be controlled and programmed over the air from anywhere in the world. We will release s...

The following is the estimated nRF51 current consumption during advertising with the DCDC disabled. Advertising 1: TX power: +4dBm adv interval: 20ms (minimum advertising interval in normal adversising mode) payload: 10 bytes application proces...

Building kernel for RPi2 with bluetooth_6lowpan In this guide, you will have two choices: Cross-compilation build Native build Choose the one that fits your needs. Cross-compilation is the fastest choice. Dependencies: In addition t...

In SDK 12.0.0 or later, logging/debugging over RTT is built in to the logger module NRF_LOG. To enable logging over RTT, "check" the NRF_LOG_BACKEND_SERIAL_USES_RTT option in sdk_config.h in the configuration wizard. This tutorial is there...

Hello. I was spending the last few days to implement an interface to access the BLE mesh via the Internet. The mesh consists of devices with LEDs, which then could be turned on and off in my browser. The entry point for my local devices is a Partic...

As many have noticed, Keil 5 does not have native support for Keil 4 projects (project files ending with uvproj), it only has native support for Keil 5 projects (project files ending with uvprojx). However, many of the examples provided in older vers...

Overview The UriBeacon design allows a Bluetooth Low Energy (BLE) device to periodically transmit an ADV packet that contains a URI. This technology enables any device, place or thing to become a beacon through physical association. As a consequence...

Since nRF51 SDK version 8.0.0 SoftDevices binary files have become a part of the release. In order to make it easier to flash proper type and version of SoftDevice a new feature was added: each project that is using SoftDevice contains additional tar...

OpenWRT is one of the most popular open source Linux-based router firmware alternatives for commodity routers. From kernel 3.17, Linux has supported 6LoWPAN for Bluetooth low energy (BLE) through the new kernel module bluetooth_6lowpan. The trunk v...

Believe it or not, the day has come when your coffee machine could know what exactly what kind of coffee you like to drink depending on the cup you’re using, the time of day, and a multitude of other factors. Earlier this year, the Nordic Semicondu...