Introduced in 2010, Bluetooth LE provides wireless connectivity for IoT's most critical applications. This guide covers the basics of Bluetooth LE, protocol architecture, GATT, GAP, and how to get started with development.
A practical guide to selecting the right Bluetooth LE module for your embedded project, covering key criteria like features, power consumption, antenna types, and popular modules from 9 leading vendors.
Learn how to set up an Android app for Bluetooth LE scanning. Covers permissions, scan configuration, callback and PendingIntent scanning, and logging scan results using Kotlin.
Learn how to design a Bluetooth LE GATT server in 4 steps. Covers attributes, services, characteristics, UUIDs, and a weather station example using Silicon Labs' GATT Configurator.
A deep dive into the ATT protocol and GATT profile layers that enable connection-oriented data transfer between Bluetooth LE devices, covering attributes, services, characteristics, and profiles.
A beginner-friendly guide to the Bluetooth Low Energy protocol stack, covering the three subsystems (application, host, controller), GAP roles, Link Layer states, and the Physical Layer.
Protocol stacks are important for a variety of reasons. But what are they, exactly?
A communications protocol is a "set of rules that must be obeyed by all users in a device network." This is a very grand definition, but it is also very dr
A practical guide to choosing between a Bluetooth LE SoC chipset and a SiP module for your product — covering cost, RF design, certifications, and break-even analysis.
Understand the factors that determine Bluetooth LE data throughput — PHY selection, DLE, ATT MTU, connection intervals — and learn how to calculate and maximize your application's speed with real nRF52 test results.
Compare 17 of the most popular Bluetooth LE SoCs from Nordic Semiconductor, Dialog, Texas Instruments, STMicroelectronics, Silicon Labs, NXP, and Qualcomm — including specs, features, and pricing.
NCC Group demonstrated a Bluetooth LE relay attack that bypasses encryption and latency checks to unlock a Tesla Model 3 without the owner's phone nearby.
