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

The Reyax BLE Connect app (modified for this demo) handles the Bluetooth communication with the RYB2340 module. When I open the app, it scans for nearby Bluetooth devices and shows the RYB2340 in the list. Tapping it establishes a connection. I customized the app's interface by adding two simple buttons—"Relay On" and "Relay Off"—that send the corresponding text commands to the module when ...

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.

In this project, we'll learn how to interface an HC-05 Bluetooth Module with an Arduino Uno. We'll establish a communication link between an Android smartphone and the Arduino, using HC-05 for wireless control. What is the HC-05 Bluetooth Module? The HC-05 is a Bluetooth module designed for wireless communication.

Aug 4, 2020 · In this project, I am going to show you how to control an led using a bluetooth.It is a very simple project the connections are as follows : led cathod : ground pin. led anode : digital pin 13. RXD : arduino pin tx. tXD : arduino pin rx. vcc : 5 volts. gnd :gnd.

May 4, 2022 · Adding Bluetooth to your Arduino is the simplest way to give your Arduino projects the power of wireless possibilities. You can get rid of messy wires between the Arduino and the moisture sensor, or even better, you can read the moisture value on your phone directly.

Mar 7, 2025 · Below is a basic code to establish communication with the module HM-10: This code allows data to be sent and received between the computer and the Bluetooth module through the Arduino serial monitor. AT: Check if the module is responding (it should respond “OK”). AT+VERSION: Check the firmware version of the module.

Mar 3, 2025 · In this complete guide, I’ll show you how to connect HC-05 with Arduino UNO, write code to send and receive data, and even enter AT command mode to change settings like device name and password. What is HC-05 Bluetooth Module? HC-05 is a classic Bluetooth module that supports both Master and Slave modes.

Apr 26, 2024 · In this project, we will learn about HC-05 Bluetooth Module, how to interface this Bluetooth Module with Arduino and how the HC-05 Bluetooth Module can be used for controlling the Arduino Board over Wireless Communication (Bluetooth). Bluetooth Communication is a 2.4GHz frequency based RF Communication with a range of approximately 10 meters.

First, make sure you are looking at the back of your nRF24L01 while attaching wires, or else you may input the connections opposite to their intended place. Refer to the supplied diagram for the location of each pin on the nRF24 module. secondly, the CN and CSN pins can be on any digital pins on your Arduino other than the 4 SPI pins on your board.