Chapters

Bluetooth and BLE Module Guide

Follow Radio Remi as a discovered room sensor is tested for one current value.

  1. Radio Remi holds a phone showing the nearby room sensor while the physical sensor remains on the table.

    A room sensor appears in the phone scan.

  2. An old temperature symbol moves from the reconnected room sensor toward the phone with an earlier time marker.

    It reconnects and sends an old temperature.

  3. Radio Remi inspects a phone trace linking the room-sensor identity, temperature level, and change-time symbol.

    The app checks what changed and when.

  4. A deliberate sensor change produces a newly timed phone value while a separate unexpected write is blocked.

    Only then can it show that the value is current.

Discovery becomes useful only when the app can explain which value changed and when.

Start With the Module

This section: Start With the Module — This guide maps the current learning path for Bluetooth & BLE.

This guide maps the current learning path for Bluetooth & BLE. The module contains 20 chapters, linked below in the order learners can study them.

Chapters by Part

This section: Chapters by Part

Bluetooth Fundamentals

Network Architecture

Security

Implementation & Labs

Applications & Review

Choose a Starting Point

This section: Choose a Starting Point — If this subject is new, follow the parts and chapters in the order shown above.

If this subject is new, follow the parts and chapters in the order shown above. If you already have a specific design or troubleshooting question, use the relevant part heading and open the direct chapter link whose title matches that question.

Use the sidebar and site search for supporting material; use this chapter map as your main route through the module.

How to Use This Material

This section: How to Use This Material

  • Start with the first chapter in the relevant part when the topic is unfamiliar.
  • Use direct chapter links for study plans, lab preparation, and review evidence.

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Find help

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Where should I start in a module?

Open the module page from the sidebar to see its chapters in order. Use the module map to return to a topic you need.

Modules and paths

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What can I try when a project does not work?

Check the symptom, then work through the diagnostic steps. Keep the error message and the smallest example that reproduces it.

When you are stuck

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How do interactive examples work?

Use the interactive guide to check how examples and simulations work before changing your project.

Interactive examples guide

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