Making Bluetooth Low Energy Work with JavaScript

📰 Dev.to · Ifedayo Agboola

Learn to work with Bluetooth Low Energy using JavaScript and React Native, and discover how to handle permissions, decode bytes, and measure signal strength.

intermediate Published 24 Apr 2026

Action Steps

Install the React Native Bluetooth Low Energy library using npm or yarn to get started with Bluetooth development.
Configure permissions for Bluetooth Low Energy in your React Native project to ensure proper functionality.
Use the library's API to scan for nearby Bluetooth devices and connect to them.
Decode bytes received from Bluetooth devices using JavaScript to extract meaningful data.
Measure signal strength and handle disconnections to ensure a robust Bluetooth connection.

Who Needs to Know This

This tutorial is beneficial for developers, especially those working with React Native, who want to integrate Bluetooth Low Energy functionality into their applications. It's also useful for IoT developers and teams working on projects that require Bluetooth connectivity.

Key Insight

💡 Handling permissions and decoding bytes are crucial steps in working with Bluetooth Low Energy in JavaScript.