HiWonder WonderLLM is an AI chat module built on the ESP32-S3, offering both vision and voice features. HiWonder has launched the WonderLLM, a compact smart interaction module built around the ESP32-S3 microcontroller. Integrated CI1302 voice processing chip with high-fidelity microphoneA key feature is its dedicated CI1302 voice processing chip, which provides low-power, always-on wake-word detection—allowing the device to respond to voice commands without constantly taxing the main processor. The module connects to cloud-based large language models through HiWonder’s XiaoZhi AI platform, though it’s important to note that the ESP32-S3 itself lacks sufficient memory to run substantial LLMs locally. It supports offline speech recognition, local vision processing via Arduino libraries, I²C-based hardware control, and JSON-based Model Context Protocol (MCP) for cloud AI integration.