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Tutorial

ESP32 Text-to-Speech with wit.ai and OpenAI TTS

Learn about the evolution of text-to-speech systems and see how we can use services like wit.ai and OpenAI TTS to make our ESP32 projects talk.

We will see how to program and ESP32 for both of these services, and we wil compare the quality of the voice.

DBWS Admin July 12, 2026 ESP32, Tutorial No Comments Read more

ESP32 Online Tools

ESP32 Online Tools

Today we will look at some useful and unique tools for the ESP32 microcontroller. All of these tools run online in your web browser, no software installation required.

We will explore Diagnostic tools, Firmware Installers, Software Installers and even a few Online IDEs. Come check them out!

DBWS Admin April 5, 2026 ESP32, Software, Tutorial 1 Comment Read more

MicroPythonOS – Android-like OS for Microcontrollers

MicroPythonOS – Android-like OS for Microcontrollers

Today we are taking a look at an operating system for the ESP32 – yes, an operating system for a microcontroller!

MicroPythonOS is an Android-like operating system for the ESP32. Today I’ll show you how to install it, use it, and build your own apps for it.

DBWS Admin March 22, 2026March 22, 2026 ESP32, Featured, Tutorial 7 Comments Read more

Working with the Adafruit I2C Rotary Encoder

Working with the Adafruit I2C Rotary Encoder

Rotary Encoders are so useful, but they can be hard to work with. Enter the Adafruit I2C Seesaw Rotary Encoder! This encoder uses an I2C bus, making interfacing it with a microcontroller very simple.

We will learn how the encoder works, then we’ll use it to build a Menu System and a fun toy – an Etch-a-Sketch!

DBWS Admin February 15, 2026February 15, 2026 Arduino, Electronics, ESP32, Tutorial 3 Comments Read more

Seeeduino XIAO ESP32-C5

Seeeduino XIAO ESP32-C5

Today we wil examine the exciting new Seeeduino XIAO ESP32-C5 board, the first XIAO board that supports 5 GHz Wi-Fi!

We wil see how the board works,and how to use it for communications and in low-power mode. We wil also build a Dual-Channel WiFi Analyzer with a Liquid Crystal Display!

DBWS Admin January 27, 2026 Electronics, ESP32, Featured, Tutorial 2 Comments Read more

Arduino Uno Q – Getting Started

Arduino Uno Q – Getting Started

Today we are looking at the new Arduino Uno Q, a unique board that contains both a microcomputer and microcontroller.

We wil take a look at this unique piece of hardware, then we wil learn about Apps, which are programs that use both Python and C++

DBWS Admin December 21, 2025 Arduino, Tutorial 2 Comments Read more

Find Your Way with the LSM303AGR Multifunction Sensor

Find Your Way with the LSM303AGR Multifunction Sensor

Want to build n electronic compass or a guidance system for a robot? Adafruit’s LSM303AGR module is the perfect component for you.

Today we wil look at this versatile module and perform experiments with it. We wil also see how to calibrate it, and we wil indeed build a simple compass with an OLED display.

DBWS Admin November 23, 2025November 23, 2025 ESP32, General, Tutorial 1 Comment Read more

Meet the Seeeduino XIAO Family

Meet the Seeeduino XIAO Family

Come meet the XIAO family! Today we wil take a look at all of the members of the Seeeduino XIAO microcontroller family. And there are over a dozen of them!

We wil check out their specs and then create three very different projects that use the same circuit (but different XIAO boards).

DBWS Admin November 2, 2025 Arduino, ESP32, Tutorial 2 Comments Read more

Measuring Air Pressure with Microcontrollers

Measuring Air Pressure with Microcontrollers

Air Pressure is literally all around you! Today we wil be testing three inexpensive yet accurate air pressure sensors – the MS8607, BME280 and LPS25.

All of these sensors are on similar Adafruit modules. We will l try them out with a variety of microcontrollers, and we’ll code in C++ and MicroPython.

DBWS Admin October 12, 2025October 12, 2025 Electronics, Tutorial No Comments Read more

WLED – Getting Started with ESP32

WLED – Getting Started with ESP32

Learn to setup and use WLED, the amazing ESP32-based product for controlling every type of LED strip. We will see how WLED works, how to choose LED strip lights and how to safely wire everything up.

We wil also hookup a microphone and use Audio Reactive, to control our LEDs with sound.

DBWS Admin September 28, 2025 ESP32, Project, Tutorial 3 Comments Read more
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Latest Articles

  • ESP32 Text-to-Speech with wit.ai and OpenAI TTS
  • ESP32 OTA (Over The Air) Updates
  • ESP32 Low-Power Modes
  • WireClaw – OpenClaw for the ESP32
  • Arduino Modulino Modules – Getting Started
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Table of Contents

  • 1 Introduction
  • 2 Text-To-Speech
  • 3 Types of Text-to-Speech Systems
    • 3.1 How the ESP32 Fits In
    • 3.2 Other Text-to-Speech Services for the ESP32
  • 4 wit.ai
    • 4.1 Logging In and Creating an API Key
    • 4.2 The WitAITTS Library
    • 4.3 Hooking Up the Hardware
    • 4.4 The Library Example Sketch
    • 4.5 The wit-ai-tts-esp32.ino Sketch
    • 4.6 Testing wit.ai
  • 5 OpenAI TTS
    • 5.1 Logging In and Creating a Secret Key
    • 5.2 Setting Up a Funding Source
    • 5.3 The openai-tts-esp32.ino Sketch
    • 5.4 Testing OpenAI TTS
  • 6 Conclusion
    • 6.1 Parts List
    • 6.2 Resources

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What's New?

  • ESP32 Text-to-Speech with wit.ai and OpenAI TTS
  • ESP32 OTA (Over The Air) Updates
  • ESP32 Low-Power Modes
  • WireClaw – OpenClaw for the ESP32
  • Arduino Modulino Modules – Getting Started
  • Using Ethernet with ESP32
  • ESP32 Online Tools
  • Experimenters Guide to Rapid Prototyping Systems
  • MicroPythonOS – Android-like OS for Microcontrollers
  • ESP32 Selection Guide – 2026
  • Working with the Adafruit I2C Rotary Encoder
  • Seeeduino XIAO ESP32-C5
  • Arduino App Lab – Build Your First App
  • Arduino Uno Q – Getting Started
  • Find Your Way with the LSM303AGR Multifunction Sensor

What’s Popular

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  • ESP32 Selection Guide - 2026
  • ESP32 Text-to-Speech with wit.ai and OpenAI TTS
  • Getting started with ESP32
  • ESP32 Online Tools

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