Arduino Code - Control LED with smartphone App via Bluetooth. The below Arduino example code accepts two commands (“ON” and “OFF”) from Bluetooth Serial Monitor App to turn on/off a built-in LED.

Aug 4, 2020 · once you have uploaded the code you need to go to play store and download arduino bluetooth controller app . Please follow the below instructions. after you have downloaded it you need to open the app and it will start searching for HC-05 bluetooth module. .Once you see it click on it and then select switch mode.

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.

Jul 3, 2021 · This project is the adaptation of several other projects I have been reading on recently while looking for a simple way to establish a Bluetooth connection to my Arduino board and simply send a few commands like enable/disable an output and read the status of the output.

May 1, 2020 · So, the main way to do this is by using the bluetooth module and the MIT app inventor too. You have to create an app in order to control the LED using bluetooth. I will demonstrate the app making process. First, the connections are important. There are 6 pins on the bluetooth module. For this project, we will only need to use the middle 4 pins.

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.

In this step-by-step tutorial, we’re going to show you how to wirelessly program your Arduino using Bluetooth. It gives you more flexibility when working on your projects.

The code also sends a "SUBSCRIBE" message to the phone when first connected, which updates the app's display. All the Bluetooth complexity is handled by the RYB2340, so our Arduino code stays simple - just reading serial messages and controlling one pin accordingly. The full code is …

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.

Apr 23, 2025 · Writing and Uploading Code to Arduino. Your bluetooth module project's software brings the hardware connections to life. After connecting the HC-05 module to your Arduino board, writing code that makes shared communication possible becomes a vital step. Let's explore the code writing process for bluetooth communication and understand serial ...