[Open Source DIY] Building Your Personal AI Assistant with Xiaozhi-ESP32

Why This Project Matters?

In the era of AIoT development, Xiaozhi-ESP32 opens new possibilities for smart hardware development with these unique advantages:

• 💡 Low-Cost Entry: Start with just an ESP32 board (~$10)
• 🔒 Privacy First: Local processing keeps voice data secure
• 🛠️ High Extensibility: Supports various sensors and actuators
• 🎓 Learning Platform: Complete open-source code + detailed docs

Core Features Overview

1. Smart Voice Interaction

• Offline voice recognition (Chinese/English)
• TTS voice feedback
• Custom wake words

2. Smart Home Hub

// Example: Voice-controlled LED
void handleCommand(String cmd) {
  if(cmd.indexOf("turn on light") >=0) {
    digitalWrite(LED_PIN, HIGH); 
    speak("Light turned on");
  }
  // ... other commands
}

3. Hardware Expansion Matrix

Quick Start Guide (Hardware)

Components Needed

• ESP32-WROOM board ×1
• INMP441 microphone ×1
• 0.5W speaker ×1
• Jumper wires

Development Setup in 3 Steps

1. Install PlatformIO

   pio pkg install --library "espressif/esp32-wav-player@^1.0.0"

2. Clone Repository

   git clone https://github.com/78/xiaozhi-esp32.git

3. Flash Demo Code

   void setup() {
     initVoiceRecognition();
     registerCommand("turn on light", LEDControl);
     // ... more commands
   }

Application Scenarios

Smart Home Control

• “Xiaozhi, set AC to 25°C”
• “Turn on study room lights”

Voice Memos

• “Remind me about tomorrow’s 3PM meeting”
• “Turn off stove in 10 minutes”

Maker Education

Modify config.h for customization:

// config.h
#define WAKE_WORD "Xiaozhi"  // Custom wake word
#define MAX_COMMANDS 20      // Max command capacity

Feature Comparison

Start Creating!

Perfect for:

• IoT rapid prototyping
• University projects
• Maker workshops
• Home automation

Your smart life starts with “Xiaozhi”!

Project URL: https://github.com/78/xiaozhi-esp32

Next: 《Adding Custom Skills to Xiaozhi-ESP32》