Bluetooth low energy

How to update advertising data dynamically using BLE Advertising library

Karl Ylvisaker — Wed, 06 Jan 2021 12:41:00 GMT

Introduction The question of how to update advertising data dynamically using the BLE Advertising library has been raised many times by our forum-goers, especially after the release of nRF5 SDK v15.2.0, in which the ble_advertising_advdata_update fun...(read more)

Mocking CoreBluetooth

Aleksander Nowakowski — Mon, 09 Mar 2020 10:06:00 GMT

CoreBluetooth is the native iOS framework to communicate with Bluetooth-enabled Low Power (LE) devices, except iBeacons (which require CoreLocation) and HomeKit devices. It is easy to start with, if one is familiar with Bluetooth LE and GATT. However...(read more)

Concurrent Advertising

Håvard — Mon, 09 Sep 2019 10:43:00 GMT

I have been asked several times about variations of the following advertising scenario, so I decided to make a blog post that I can refer to, and hope it might prove useful for others out there that are looking to do similar things. I recommend ...(read more)

MIDI over Bluetooth LE

Håvard — Sun, 30 Jun 2019 17:55:00 GMT

I implemented parts of the BLE-MIDI service along with a small example application. I wanted to share it here on the blog, in case someone would find it useful. The intended audience is primarily someone looking to send MIDI data over Bluetooth ...(read more)

Merging two BLE examples together

Håvard — Thu, 06 Sep 2018 19:17:00 GMT

This is a follow-up to my previous blog post; adding custom commands to a BLE example. I hope it was interesting to see an example of adding the vendor specific Nordic UART service (NUS) into another project. For completeness, I wanted to share step...(read more)

Wireless timer synchronization among nRF5 devices

Audun — Tue, 12 Jul 2016 23:23:10 GMT

Introduction In a variety of use cases there is a need to share a common clock among multiple devices. Such a common clock can be used for many purposes, for example by having each node in a network perform an action at exactly the same time, or acc...(read more)

Bluetooth low energy Characteristics, a beginner's tutorial

MartinBL — Fri, 18 Mar 2016 14:52:00 GMT

Before we begin Table of content Topics that will be covered include: Before we begin Basic theory Attribute tables in nRFConnect Bluetooth Low Energy application Description of the example Adding a characteristic Updating the characteristic and s...(read more)

Bluetooth Smart and the Nordic's Softdevices - Part 2 Connection

Hung Bui — Mon, 01 Feb 2016 15:21:31 GMT

This blog series was created as an attempt to fill in the gap between how Bluetooth Smart is described in the spec and how you can use our APIs and event from our softdevice to do what defined in the spec. [UPDATE]We had quite a lot of new features ...(read more)

Bluetooth Smart and the Nordic's Softdevices - Part 1 GAP Advertising

Hung Bui — Thu, 10 Dec 2015 14:45:00 GMT

This blog series was created as an attempt to fill in the gap between how Bluetooth Smart is defined in the spec and how you can use our APIs and event from our softdevice to do what defined in the spec. It should be a good place to begin with if you...(read more)

Bluetooth low energy central tutorial

Anders Strand — Wed, 04 Nov 2015 13:00:00 GMT

Scope Topics that will be covered include: Before we begin Necessary equipment and software Necessary prior knowledge Setting up the example projects Background theory Central and peripheral roles Server and client roles Connections in BLE T...(read more)

Bluetooth low energy Services, a beginner's tutorial

MartinBL — Wed, 26 Aug 2015 12:37:00 GMT

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 Characteristics Universally Unique ID (UUID) ...(read more)

Bluetooth low energy Advertising, a beginner's tutorial

MartinBL — Tue, 31 Mar 2015 14:27:00 GMT

Before we begin Table of context Before we begin The "Hello world" example Advertising RSSI Addresses Address types Advertising types Bonding Advertising data Scan response data Change Log 2018.08.24: Updated tutorial to suit SDK V15..0...(read more)