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ESP32 Bluetooth Season 01
Rating: 4.4 out of 5(7 ratings)
58 students

ESP32 Bluetooth Season 01

BLE on bluedriod
Created byHUI HU
Last updated 11/2023
English

What you'll learn

  • Basic concept for GAP and GATT
  • ESP32 BLE GATT server work flow
  • ESP32 BLE GATT server advertising flow and data format
  • ESP32 BLE GATT client work flow
  • ESP32 BLE read data for server and client on bluedroid
  • ESP32 BLE write data for server and client on bluedroid
  • ESP32 BLE notification for server and client on bluedroid
  • ESP32 BLE indication on bluedroid

Course content

2 sections • 15 lectures • 4h 18m total length

  • Introduction10:29

    Explore Bluetooth fundamentals and evolution, comparing Bluetooth classic and Bluetooth low energy, including topology, positioning features, and the rise of Bluetooth low energy audio and Bluetooth 5.x specifications.

  • Bluetooth Stack16:04

    Explore the ESP32 Bluetooth stack architecture, including controller and host layers, two host stacks bluejoy and limbo (nimble), and where to find related examples and source code.

  • GAP10:10

    Explore how the generic access profile enables Bluetooth low energy communication by defining four roles—broadcast, observer, peripheral, and central—and guiding device collaboration from advertising to data exchange.

  • GATT16:36

    An introduction to Bluetooth GATT, a generic attribute profile that defines a client–server model of services and characteristics, with UUID-based declarations and presentation format.

Requirements

  • Basic ESP32 IDF SDK knowledge

Description

This course is for ESP32 bluetooth beginner.  it focuses on ESP32 bluetooth low energy (BLE) data communication on bluedriod stack. It analyses all the flow for how esp32 read data, write data, notification and indication between the client and server.


All the code has been tested on ESP32_idf_sdk_ver 5.0. In the videos,  we use the command line compile environment to compile and test the code.


For the tested board, we use two ESP32C3 boards and one lightblue mobilephone app. You also can use other boards, such as ESP32S3 boards, or other apps to test.


(1) For the introduction part, it briefly introduces the bluetooth history and the bluetooh stack for ESP32. For the GAP and GATT part, it talks about the GAP and GATT "key" knowledge for our BLE software development.


(2) For the ESP32 BLE on bluedriod,  it explains the GATT server and GATT client work flow, GATT server advertising flow, advertising data format, read data, write data, notification and indication. It gives examples not only from server side, but also from client side in order to help people to clearly understand the whole detail BLE data communication flow, such as, we will blink one led on the client board by the notification data, or we will control the led on the server board by writing different data to the server through the BLE GATT.

Who this course is for:

  • ESP32 Bluetooth Beginner

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