Do you have a project that needs wireless short-range data transfer? Or maybe you want to control it wirelessly? Then Bluetooth might be the perfect solution for you!

You can easily add Bluetooth to your projects using the popular HC-05 Bluetooth module. Or the AT-09 module if you want to use BLE (Bluetooth Low Energy).

In this course, you’ll learn how to add Bluetooth to Arduino projects. Specifically, how to send commands from a smartphone to your project, so that you can control it from your smartphone. And how to send data from your Arduino to your smartphone.

Although we use Arduino in the examples, it can easily be used in the same way with other microcontrollers.

First, you’ll learn about AT commands and how to use these to control your module. Then through a mini-project, you’ll learn how to connect your smartphone to Arduino using a Bluetooth module and control an LED from your phone.

Course Prerequisites

Before taking this course you should already have a basic understanding of Arduino and how to create simple projects with it. Recommended course for learning the basics: Getting Started With Arduino

Components

For this course, depending on what smartphone you are using, you will need the following components:

For Android users:

• HC-05 module
• Arduino
• Breadboard
• 3 kΩ resistor
• 1.5 kΩ resistor
• Android smartphone

For iPhone users:

• AT-09 module
• Arduino
• Breadboard
• 3 kΩ resistor
• 1.5 kΩ resistor
• iPhone smartphone