Welcome to the forefront of conversational AI as we explore the fascinating world of AI chatbots in our dedicated blog series. Discover the latest advancements, applications, and strategies that propel the evolution of chatbot technology. From enhancing customer interactions to streamlining business processes, these articles delve into the innovative ways artificial intelligence is shaping the landscape of automated conversational agents. Whether you’re a business owner, developer, or simply intrigued by the future of interactive technology, join us on this journey to unravel the transformative power and endless possibilities of AI chatbots.
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Espressif Systems’ EchoEar is a compact ESP32-S3 AI chatbot designed for voice interaction and edge AI applications, for smart toys, voice-enabled speakers, and control systems. It features a 1.85-inch circular touch display, a dual microphone array with local wake-word detection, and support for large AI models from OpenAI, Xiaozhi AI, and Gemini.
The kit is built around the ESP32-S3-WROOM-1 Wi-Fi 4 and Bluetooth 5 module, and also integrates a 3W speaker for audio interaction, and a microSD card slot for data storage. Other hardware features include a BMI270 IMU, a green LED, a USB-C port, a magnetic connector, and a battery management chip.
Espressif EchoEar Specifications
On the software side, the EchoEar can be programmed and debugged over USB-C using the ESP-IDF framework. Espressif provides a dedicated Board Support Package (BSP) that simplifies access to key peripherals such as the LCD display, audio subsystem, buttons, and LEDs. Developers can also find ready-to-use application examples in the esp-brookesia project, covering voice interaction, multimedia, and AI agent use cases. The kit is designed for edge AI applications and integrates smoothly with large-model services such as OpenAI, Gemini, and Xiaozhi AI, enabling offline voice wake-up, multimodal interaction, and full-duplex conversational agents directly on the device. More information is available on the wiki.
Previously, we have written about other ESP32-S3-based development boards that support AI voice features, like the ESP32-S3-Touch-LCD-3.49 touch display development board, the ESP32-S3-AUDIO-Board, the LILYGO T-Circle-S3, and other ESP32-S3 devices. But the EchoEar is an official kit from Espressif, and goes further, combining a 1.85″ round display, dual-mic array, 3W speaker, battery management, and esp-brookesia support for a complete voice-AI kit with offline wake-word, sound localization, and large-model integration.
The Espressif EchoEar AI chatbot can be purchased from AliExpress for $40 and on Amazon for $55.00.
Debashis Das is a technical content writer and embedded engineer with over five years of experience in the industry. With expertise in Embedded C, PCB Design, and SEO optimization, he effectively blends difficult technical topics with clear communication
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