Building a Web Bluetooth Serial Monitor for Raspberry Pico Wireless

In recent years, the Web Bluetooth API has gained popularity as a powerful tool for building web applications that can communicate with Bluetooth devices. In this blog post, we will explore how to create a web-based serial monitor using Web Bluetooth for Raspberry Pico. This serial monitor can connect to a Raspberry Pico, send and receive messages, and display the received data in real-time. Let’s dive in!

Prerequisites

To follow along with this tutorial, you will need the following:

• A web browser that supports the Web Bluetooth API (e.g., Chrome or Edge).
• A Raspberry Pico Wireless.

Setting up the HTML Structure

First, let’s set up the HTML structure for our serial monitor web page. We will have a few buttons for connecting, disconnecting, and sending messages, a text field for entering messages, and a log area for displaying received data. Here’s a basic HTML structure to get started: