ESP32 KIT · AI Development Board

Build your own AI voice device. From scratch.

The ESP32-S3 AI DEV KIT is a complete hardware development kit for building ChatGPT-powered voice devices. Includes an ESP32-S3 dev board, speaker module, dual MEMS microphones, 18650 battery, push button, and pre-loaded firmware — everything you need to prototype your own AI hardware product.

ESP32-S3 ChatGPT Ready Complete Kit Open Firmware
ESP32-S3 AI Development Board Kit with all components
ESP32-S3
AI processor
All-in-One
Complete kit
ChatGPT
Pre-integrated
Open
Firmware & SDK
For builders and makers

Everything in the box to go from idea to AI voice prototype.

Stop sourcing components and writing drivers from scratch. The ESP32-S3 AI DEV KIT ships with a pre-wired, pre-loaded development board plus all the audio hardware you need — speaker, microphones, battery, and control button. Flash the included firmware, connect to Wi-Fi, and you're talking to ChatGPT in minutes. From there, customize the firmware, design your own enclosure, and build the AI voice product you've been imagining.

Electronics development workspace with circuit boards
What's in the kit

One box. Everything you need.

ESP32-S3 Dev Board

Powerful dual-core Xtensa LX7 processor with Wi-Fi 6 and Bluetooth 5.0. Pre-loaded with hearit.ai AI firmware for immediate ChatGPT voice interaction.

Speaker Module

Enclosed speaker unit with wiring harness. Clear audio output for AI voice responses, alerts, and audio playback — ready to connect.

Dual MEMS Microphones

Two high-sensitivity MEMS microphones with noise cancellation. Far-field voice capture for reliable AI interaction even in noisy environments.

18650 Li-Ion Battery

Rechargeable 18650 battery cell provides portable power for untethered prototyping. Build battery-powered AI devices from day one.

Push Button Control

Illuminated push button for voice activation and mode control. Pre-wired and ready to connect — press to talk to ChatGPT.

Pre-Loaded AI Firmware

Ships with hearit.ai ChatGPT firmware. Connect to Wi-Fi, press the button, and talk to AI immediately. Full SDK and source code available for customization.

Technical Specifications

The details.

Product Namehearit.ai AI Development Board Kit
ModelESP32-S3 AI DEV KIT
ProcessorESP32-S3 (Dual-core Xtensa LX7, up to 240 MHz)
AI EngineChatGPT (Cloud AI via Wi-Fi)
WirelessWi-Fi (802.11 b/g/n) + Bluetooth 5.0 (BLE)
SpeakerEnclosed speaker module with wiring harness
Microphones2× MEMS microphones with noise cancellation
Battery18650 Li-Ion rechargeable cell (3.7V)
ControlsIlluminated push button (pre-wired)
FirmwarePre-loaded hearit.ai ChatGPT firmware
SDKFull SDK, API documentation, sample code
InterfacesUSB Type-C (programming + charging), GPIO pins
DevelopmentArduino IDE / ESP-IDF / PlatformIO compatible
Kit ContentsDev board + speaker + 2× mics + battery + button + wiring
From kit to product

Prototype today. Ship tomorrow.

Built for

Made for teams that build voice-first products.

Hardware Startups IoT Developers Product Engineers Makers & Hobbyists University Research Corporate R&D Innovation Labs AI Researchers Embedded Engineers ODM Partners
Made by the manufacturer

Engineered and built in-house.

From PCB assembly to kit packaging and QA, the ESP32-S3 AI DEV KIT is produced in our own Shenzhen facility. Need to scale your prototype into mass production? We handle the entire journey — from dev kit to finished product.

SMT line operator inspecting a populated ESP32-S3 circuit board
Technician assembling ESP32 KIT devices on the production line
ESP32 KIT unit undergoing automated quality-assurance testing
From prototype to production

We don't just sell kits. We build your product.

Hardware Customization

  • Custom PCB layout
  • Custom enclosure design
  • Custom component selection
  • Custom antenna / connectivity

Firmware & AI

  • Custom AI firmware development
  • Custom wake word & voice
  • Custom ChatGPT prompts
  • OTA update infrastructure

Scale to Production

  • Full ODM manufacturing
  • From 100 to 100,000+ units
  • Certification support (FCC/CE)
  • Logistics & fulfillment

Ready to build the next AI voice device?

Order a dev kit, schedule an engineering consultation, or talk to our team about scaling your prototype to mass production.