Learn how to use Bluetooth with Arduino, how to connect HC-05 Bluetooth module to Arduino, how to connect smartphone to Arduino via Bluetooth, how to exchange data between Arduino and smartphone, how to control Arduino from smartphone, how to control Arduino via Bluetooth

In this Arduino Bluetooth Tutorial we will learn how use the HC-05 module for controlling Arduino via Bluetooth communication. You can watch the following video or read the written tutorial below for more details.

May 4, 2022 · Step-By-Step Instructions To Connect HC-05 Bluetooth Module To An Arduino. I will show you how to connect your HC-05 module to an Arduino UNO in a few simple steps. HC05 module comes with a 2.54 mm bergstick connector. You can use a male-to-female Dupont cable to connect HC-05 and the Arduino UNO.

How to Set Up and Test Arduino Bluetooth Connection: This works with android phones and the HC-05 and HC-06 bluetooth modules, as well as pretty much any arduino or arduino clone.

Mar 30, 2024 · Among the most cost-effective and commonly utilized Bluetooth modules is the HC-05, available online for approximately $5. It presents an economical solution for incorporating Bluetooth connectivity into projects, eliminating the hassle of tangled cables and cluttered wires. This tutorial aims to introduce you to the HC-05.

Jan 27, 2025 · Wireless communication between an Arduino and a Bluetooth module opens up endless possibilities for DIY electronics enthusiasts. By following this guide, you’ll not only set up communication but also gain the skills to enhance your projects.

Apr 29, 2025 · Connect Arduino's TX pin (pin 3) to the 1kΩ resistor's end. The junction between resistors goes to HC-05's RX pin. The 2kΩ resistor's other end connects to ground. This setup safely reduces Arduino's 5V signal to about 3.3V. ... An LED control sketch provides an excellent starting point for bluetooth module arduino projects. Here's a simple ...

Mar 7, 2025 · Requires proper connection to Arduino with VCC, GND, TX and RX pins. AT commands allow you to change the name, role, and other parameters of the module. It can be connected to a mobile app to send and receive data in real time.

In this instructable, we’ll demonstrate how to configure two HC-05 Bluetooth modules as master and slave and establish communication between two Arduino boards. This tutorial includes: 2 x Arduino UNO boards. 2 x HC-05 Bluetooth modules. 2 x Breadboards. Jumper wires. 4 x1k and 2k resistors. 12V Supply Adapter. DC Fan. 3 Push Buttons.

Mar 3, 2025 · HC-05 is a classic Bluetooth module that supports both Master and Slave modes. This makes it more flexible than some other modules, like HC-06 (which only works in Slave mode). It communicates with Arduino using Serial Communication (UART), making it easy to connect with Arduino’s TX and RX pins.