Bluetooth Low Energy (BLE): A Complete Guide
What is Bluetooth Low Energy? A complete developer guide covering the protocol stack, GAP, GATT, advertising, connections, and how to start building Bluetooth LE applications.
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Tutorials, guides, and insights on Bluetooth Low Energy development, from protocol fundamentals to advanced implementation techniques.
Latest
How to Choose a Bluetooth LE Module for Your Project
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.
The Ultimate Guide to Getting Started with Android Bluetooth LE Development
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.
Tutorial: How To Design A Bluetooth LE GATT Server For Your Application
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.
Bluetooth ATT and GATT Explained (Connection-Oriented Communication)
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.
The Bluetooth Low Energy Protocol Stack: Understanding the Layers
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.
What is a Protocol Stack? And Why is it Layered?
Protocol stacks are important for a variety of reasons. But what are they, exactly?
Communications Protocols And Why We Need Them
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
Chipset vs Module Bluetooth LE Solutions: The Ultimate Guide
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.
Bluetooth 5 Speed: How to Achieve Maximum Throughput for Your Bluetooth LE Application
How fast is Bluetooth 5? Real throughput depends on PHY selection, DLE, ATT MTU, and connection intervals. This guide explains each factor with actual nRF52 measurements.
17 Most Popular Bluetooth Low Energy Chipsets Compared
Choosing a Bluetooth LE chipset? Compare 17 popular SoCs from Nordic, Texas Instruments, Silicon Labs, NXP, and more — with detailed specs, features, and pricing to help you decide.
Security
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How a Group of Researchers Hacked Tesla's Passive Keyless Entry System
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.