18 05, 2017

Getting started with Bluetooth Low Energy: Five action steps

By | 2018-05-09T22:27:31+00:00 May 18th, 2017|Categories: BLE technology|Tags: , , , , , , |2 Comments

If you're just getting started with Bluetooth Low Energy (BLE), just looking to learn more about it, or exploring different ways to stay up-to-date then read on. Here are a few steps to get you started: Sign up for my FREE 7-day BLE email crash course: most books out there on the topic of Bluetooth Low Energy are pretty dated! Before committing to a book, I recommend signing up for my free email course. First of all, it's 100% FREE, and it will get teach you all the basics of Bluetooth Low Energy that you'd spend hours to find elsewhere [...]

19 10, 2016

How do I choose a UUID for my custom services and characteristics?

By | 2017-06-19T17:23:13+00:00 October 19th, 2016|Categories: BLE technology|Tags: , , , |0 Comments

First, a few things to know:"A UUID is a universally unique identifier that is guaranteed to be unique across all space and all time" (Bluetooth 4.2 spec, Vol 3, Part B, section 2.5.1 UUID)A UUID is a 128-bit value.There are reserved UUIDs by the Bluetooth SIG that are generally represented by their 16-bit aliases. These aliases are used for convenience and represent a 128-bit value computed as follows:128-bit value = 16-bit-value * 2^96 + BluetoothBaseUUIDwhere the BluetoothBaseUUID is 00000000-0000-1000-8000-00805F9B34FBExamples include: 0x180F -> Battery Service UUID (128-bit UUID: 0000180F-0000-1000-8000-00805F9B34FB) 0x2A00 -> Device Name Characteristic UUID (128-bit UUID: 00002A00-0000-1000-8000-00805F9B34FB)The reserved UUIDs cannot be used for [...]

4 05, 2016

The basics of Bluetooth Low Energy (BLE)

By | 2017-06-16T03:14:23+00:00 May 4th, 2016|Categories: BLE technology|Tags: , , , , |3 Comments

Basics of Bluetooth Low Energy (BLE): the ultimate guide Introduction BLE (Bluetooth low energy) was introduced by the Bluetooth SIG in the 4.0 spec of Bluetooth. As the name suggests, BLE focuses on low energy consumption. Low energy focus comes with some sacrifices particularly around data transfer rates and the range of operation. But that's not a bad thing, in fact BLE is very suitable for many applications. With all the hype around IoT (Internet of Things) and the slew of technologies and devices out in the market, BLE is attempting to position itself as a leader for the future of IoT. [...]