HA-ESP32-S3 KIT

Hearit.AI DevKit ESP32

---

Table of Contents

1. Product Overview
2. Hardware Components
3. Power Management
4. LED Indicators
5. WiFi Configuration
6. Chat Mode (Real-time Voice Interaction)
7. Quick Start Guide
8. Firmware Update
9. Charging
10. FAQ (Frequently Asked Questions)

---

Product Overview

The HA-ESP32-S3 KIT is a DIY development kit for building AI-powered voice interactive devices with real-time ChatGPT integration. This comprehensive kit enables makers and developers to create custom voice conversation systems with advanced AI capabilities.

🎯 Key Features

• Real-time ChatGPT Integration: Direct voice conversation with ChatGPT AI model
• Dual Microphone System: Enhanced voice capture and noise reduction
• WiFi Connectivity: Seamless cloud-based AI processing with ESP32-S3
• RGB LED Indicator: Visual feedback for device status
• DIY-Friendly Design: Easy to assemble and customize
• Auto Power-off: Intelligent power management with 10-minute auto-sleep
• OTA Firmware Updates: Over-the-air updates for continuous improvements
• Dual Button Controls: Power and Chat button for easy operation

---

Hardware Components

The HA-ESP32-S3 KIT features multiple physical components that work together to create a complete voice AI system:

Component Overview

Component	Function
Charging Interface	USB-Type-C charging port for device power
Chat button	Controls real-time voice interaction mode with ChatGPT
Power button	Powers device on/off and triggers WiFi configuration mode
Microphone 1	Primary voice input for audio capture
Microphone 2	Primary voice input for audio capture
Three-color light	LED indicator providing visual feedback on device status

---

Power Management

Power On/Off

State	Trigger	Voice Feedback	LED Status
Power On	Long-press Power button (3s)	"Power on"	🔵 Blue flashing (0.1s interval)
Power Off (Manual)	Long-press Power button (3s)	"Power off"	LED turns off
Power Off (Auto)	10 minutes no activity	None	LED turns off
Standby	Device idle after power on	None	🔵 Blue slow flashing (1s interval)

---

LED Indicators

The RGB LED indicator provides real-time visual feedback on the device's operational status through different colors and flashing patterns.

LED Status Reference

LED Status	Status	Meaning
🔵 Blue (0.1s flashing)	Booting	Device is powering on
🔵 Blue (0.3s flashing)	WiFi Config Mode	Ready to configure WiFi settings
🔵 Blue (1s flashing)	Standby	Device idle, waiting for input
🔴 Red (solid)	WiFi Disconnected	Failed to connect to WiFi network
⚪ White (0.3s flashing)	Connecting	Establishing real-time voice connection
⚪ White (solid)	Chat Active	Real-time voice interaction mode active
🟢 Green (0.3s flashing)	OTA Update	Firmware update in progress

---

WiFi Configuration

Before using the real-time voice interaction features, you must configure the device's WiFi connection to enable cloud-based ChatGPT AI processing.

Configuration Steps

Step 1: Enter WiFi Configuration Mode

1. Power on the device (if not already on)
2. Press the Power button 3 times quickly
3. Listen for the WiFi configuration voice prompt
4. LED Status: Blue light flashing at 0.3s intervals

Step 2: Connect to Device's Temporary WiFi

1. On your computer or smartphone, open WiFi settings
2. Look for a WiFi network named "HAESP32-XXXX" (XXXX represents device-specific numbers)
3. Connect to this temporary WiFi network
4. Your browser should automatically open the configuration page
   • If not, manually navigate to: 192.168.4.1

Step 3: Configure WiFi Settings

1. Click the "CONFIG" button on the configuration page
2. Enter your WiFi credentials:
   • SSID: Your WiFi network name (e.g., "Hearit.AI")
   • Password: Your WiFi password (e.g., "66668888")

3. Click "Save Config" to apply settings

Step 4: Exit Configuration Mode

After saving, the device will automatically:

• Exit WiFi configuration mode
• Attempt to connect to your specified WiFi network
• Return to standby mode (blue LED flashing at 1s intervals)

Alternative Exit Methods (if not configuring):

• Click the "EXIT" button on the configuration page
• Press the Power button 3 times again
• Wait 3 minutes without action (automatic timeout)

---

Chat Mode (Real-time Voice Interaction)

The Chat Mode enables real-time voice conversations with ChatGPT AI. This feature provides natural language interaction for questions, learning, and entertainment.

How to Use Chat Mode

Starting a Conversation

1. Ensure Device is Connected to WiFi:

   • Device should show blue LED flashing slowly (1s intervals) in standby mode
   • If red LED is solid, WiFi is not connected - reconfigure WiFi settings

2. Press the Chat button once:

   • Device begins establishing connection to ChatGPT service
   • Connection time: Approximately 8 seconds
   • LED Status: White light flashing at 0.3s intervals

3. Wait for Connection:

   • When connection is established, LED changes to solid white
   • You'll hear a confirmation sound or tone
   • Device is now ready for voice interaction

4. Start Talking:

   • Speak naturally to the device
   • ChatGPT will process your speech and respond with voice output through the speaker
   • No need to press buttons while conversing

Ending a Conversation

Manual Exit:

• Press the Chat button once to exit chat mode
• Device returns to standby mode (blue LED, 1s flashing)

Automatic Exit:

• If there's no conversation for 1 minute, the device automatically exits chat mode
• Helps conserve battery and data usage

Chat Mode Status Overview

Stage	Action	LED Status	Duration	Feedback
Idle	Device ready	🔵 Blue (1s flashing)	-	Standby mode
Connecting	Press Chat button	⚪ White (0.3s flashing)	~8 seconds	Establishing connection
Active	Connection successful	⚪ White (solid)	Until exit	Ready for conversation
Timeout	1 min no activity	Returns to 🔵 blue	Automatic	Auto-exit

---

Quick Start Guide

Get your HA-ESP32-S3 KIT up and running in minutes! Follow these simple steps to start chatting with ChatGPT.

📋 Complete Setup Flow

Step	Action	LED Indicator	Voice Prompt	What's Happening
1	Long-press Power button (3s)	🔵 Blue fast flashing (0.1s)	"Power on"	Device booting up
2	Wait for standby	🔵 Blue slow flashing (1s)	None	Device ready
3	Press Power button 3 times quickly	🔵 Blue medium flashing (0.3s)	WiFi config prompt	Entering WiFi setup mode
4	Connect to "HAESP32-XXXX" WiFi	🔵 Blue medium flashing (0.3s)	None	Device broadcasting temp WiFi
5	Open browser, enter WiFi credentials	🔵 Blue medium flashing (0.3s)	None	Configuring network
6	Save configuration	🔵 Blue slow flashing (1s)	None	Connected to WiFi, standby
7	Press Chat button once	⚪ White fast flashing (0.3s)	None	Connecting to ChatGPT (~8s)
8	Wait for connection	⚪ White solid	Confirmation tone	Ready for conversation!
9	Speak naturally	⚪ White solid	AI responses	Chatting with ChatGPT
10	Long-press Power button (3s)	LED turns off	"Power off"	Device shutting down

🚀 Step-by-Step Instructions

Step 1: Power On the Device

• Action: Long-press the Power button for 3 seconds
• LED: Blue light flashing rapidly (0.1s intervals)
• Voice: Hear "Power on"
• Status: Device is booting

Step 2: Wait for Standby Mode

• LED: Blue light flashing slowly (1s intervals)
• Status: Device ready for WiFi configuration

Step 3: Enter WiFi Configuration Mode

• Action: Quickly press the Power button 3 times
• LED: Blue light flashing at medium speed (0.3s intervals)
• Voice: WiFi configuration prompt
• Status: Device is ready to be configured

Step 4: Connect to Device's Temporary WiFi

• Action: On your phone/computer, connect to WiFi named "HAESP32-XXXX"
• LED: Still blue flashing (0.3s)
• Status: Configuration portal active

Step 5: Configure Your WiFi

• Action:
  1. Browser opens automatically (or go to 192.168.4.1)
  2. Click "CONFIG" button
  3. Enter your WiFi name (SSID) and password
  4. Click "Save Config"
• LED: Blue flashing continues during setup
• Status: Saving WiFi credentials

Step 6: Configuration Complete

• LED: Blue light flashing slowly (1s intervals)
• Status: Device connected to your WiFi, in standby mode
• Note: If LED shows red (solid), WiFi connection failed - retry configuration

Step 7: Start Chat Mode

• Action: Press the Chat button once
• LED: White light flashing (0.3s intervals)
• Status: Connecting to ChatGPT service (takes ~8 seconds)

Step 8: Begin Conversation

• LED: White light solid (constant)
• Voice: Confirmation tone or sound
• Status: ChatGPT is ready!
• Action: Start speaking naturally to the device

Step 9: Enjoy Your Conversation

• LED: White light remains solid during conversation
• Status: ChatGPT processes your speech and responds with voice through the speaker
• Tips:
  • Speak clearly and naturally
  • Wait for AI to finish responding before speaking again
  • No need to press buttons while talking

Step 10: Power Off (When Finished)

• Action: Long-press the Power button for 3 seconds
• LED: LED turns off
• Voice: Hear "Power off"
• Status: Device shut down
• Note: Device auto-powers off after 10 minutes of inactivity

💡 Quick Tips

• First-time Setup: WiFi configuration only needs to be done once
• Next Time: Just power on → press Chat button → start talking!
• Auto Exit: Chat mode exits automatically after 1 minute of silence
• Manual Exit: Press Chat button once to exit chat mode anytime
• Battery: Charge using USB Type-C cable (5V/1A)
• DIY Customization: The kit can be customized with different enclosures and configurations

---

6. Firmware

For detailed firmware update instructions and methods, please visit the dedicated firmware update page:

👉 View Firmware Update Guide for HA-ESP32-S3 KIT

---

Charging

Proper charging ensures optimal device performance and battery longevity.

Charging Specifications

• Charging Cable: USB Type-C
• Charging Voltage: 5V / 1A
• Battery Type: 18650 Rechargeable Lithium Battery
• Charging Port: USB Type-C port on the device

How to Charge

1. Connect USB Type-C cable to the device's charging port
2. Connect the other end to a 5V/1A power adapter or USB port
3. LED Indicator: Check for charging status indication
4. Allow device to charge fully before first use
5. Charging time: Approximately 2-3 hours for full charge

---

FAQ (Frequently Asked Questions)

General Operation

1. How do I turn on the device?

   Long-press the Power button for 3 seconds. You'll hear "Power on" and see blue LED flashing.

2. How do I turn off the device?

   Long-press the Power button for 3 seconds. You'll hear "Power off" and the LED will turn off.

3. Why does my device turn off automatically?

   The device has an auto power-off feature that activates after 10 minutes of inactivity to save battery.

4. What do the different LED colors mean?

   • Blue: Boot, WiFi config, or standby modes
   • Red: WiFi connection failure
   • White: Chat mode (flashing = connecting, solid = active)
   • Green: Firmware update in progress

WiFi Configuration

5. How do I configure WiFi settings?

   Press the Power button 3 times quickly, connect to "HAESP32-XXXX" WiFi, and use the configuration page to enter your WiFi credentials.

6. Why can't I find the "HAESP32-XXXX" WiFi network?

   • Ensure you pressed the Power button 3 times quickly
   • Listen for the WiFi configuration voice prompt
   • Check that the blue LED is flashing at 0.3s intervals
   • Try restarting the device and entering config mode again

7. The LED shows red solid - what does this mean?

   Red solid LED indicates WiFi connection failure. Re-enter WiFi configuration mode and verify your SSID and password are correct.

Chat Mode

8. How do I start a conversation with ChatGPT?

   Press the Chat button once. Wait for the white LED to become solid (about 8 seconds), then start speaking.

9. How do I exit Chat Mode?

   Press the Chat button once to manually exit, or wait 1 minute without speaking for automatic exit.

Firmware Updates

10. How do I update the firmware?

    Firmware updates are automatic. When you power on the device, it checks for updates automatically and will announce "Upgrading the system" if an update is available.

11. How long does a firmware update take?

    Approximately 2 minutes. The green LED will flash during the update process.

12. What if the update fails?

    Restart the device by powering it off and on. It will check for updates again. If problems persist, ensure WiFi connection is stable.

DIY & Hardware

13. Can I customize the hardware components?

    Yes! The HA-ESP32-S3 KIT is designed for DIY customization. You can modify the enclosure, add additional sensors, or integrate it into your own projects.

14. Can I reprogram the ESP32-S3?

    Yes, the ESP32-S3 can be reprogrammed via the USB Type-C port. However, custom firmware may affect the ChatGPT integration features.

---