What is web bluetooth 2021? Is it best or not?

What is web bluetooth
What is web bluetooth

As we all know technology is growing rapidly and it’s making new things everyday. So today we’ll going to talk about web bluetooth. It’s interesting to know about web bluetooth in detail.

In this article, we will learn about Web Bluetooth, how it works, its advantages and disadvantages.

Reason of web bluetooth introduction

The web is excellent for talking to servers but not for talking to devices. For example, Let us say that you are trying to set up a router in your network.

Chances are you had to enter an IP address to access the Router Configuration and use a buggy web interface over a plain HTTP connection without any security whatsoever.

Reason of web bluetooth introduction

That is just a poor experience and bad security. For many devices, especially IoT devices, we need native apps to configure and set the devices up and use them because native apps are not bound to the web platform’s limitations and can offer a pleasant experience for its users.

While we solve the user experience problem, However, we would not want to download a 500 MB native app to do that. What if the device is already a few years old, and the device manufacturer never updates the software.

Also what if you want to use a desktop or laptop to interact with the device, but the manufacturer only built a mobile app. Also not an ideal experience. Web Bluetooth is the solution for this.

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What is web bluetooth?

So what is web Bluetooth? When Web Bluetooth was introduced by Google in 2014, it was provided as a JavaScript API that allows developers to develop websites that interact directly with Bluetooth low-energy devices.

This is done by the browser gaining access to the Bluetooth low-energy chipset that’s embedded in the device that the browser is running on.

This could be a smartphone, a PC, a tablet, or whatever device that’s capable of running a web browser that supports web Bluetooth.

How web bluetooth works in detail?

Let’s look at how Web Bluetooth works in much detail. It exposes JavaScript APIs that allow the user to interface with the Bluetooth low-energy chipset that’s embedded in the device through the browser on their device.

How web bluetooth works?

This relies heavily on the JavaScript concept called promises, which you can learn from the link in the description of this video.

The APIs mentioned before provide the most common functionalities that you would expect for interacting with a Bluetooth low-energy device like, Device discovery, Connections, Services, and Characteristic operations.

Basic process of web bluetooth

Let’s now look at the basic process of a Web Bluetooth application. The basic steps of typical web Bluetooth applications are very similar to embedded or mobile ble applications.

They are Scan for Target Device Connect to the device Find the GATT Service of Interest Get the Characteristic of Interest in that GATT Service Perform operation or operations on the Characteristic. This can involve Read, Write, Enable Notifications etc.

Benefits of web bluetooth

Benefits of web bluetooth

Now let’s look at some of the benefits of Web Bluetooth. Some of these include eliminating the need for multiple native applications to talk to different Bluetooth low-energy devices.

Instead, one web application can be developed to talk to multiple ble devices. Rapid and easy development Multiple platform and multiple browser support Automatic functionality updates Security and privacy measures which require HTTPS and user permission as well as user interaction for interacting with ble devices.

Limitations of web bluetooth

Now let’s look at some of the limitations of Web Bluetooth.

  • Support for the central role only and no peripheral role.
  • No support for automatic discovery and connectivity.
  • Lack of API’s for other functionality and newer Bluetooth Low Energy features.
  • Not suitable for complex applications

Now we have covered an overview of Web Bluetooth, how it works, its advantages and disadvantages.


In this article, we have talked about web bluetooth. Web Bluetooth is a javascript API developed for special purpose. So we have discussed about how web bluetooth works, its advantages and disadvantages and everything about it.

If you found this article helpful then please share this with your friends and family. If you have any queries related to this topic then please let us know in the comment section below.

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