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Smart HomeRobotics & Drones
SmartToys Inc.
AI Plush Toy powered by Jieli AC692x
Interactive smart plush toy with voice recognition.
Battery Life
30+ Days
Inference Latency
<150ms
SmartToys Inc.
Plan A — Quick Facts
SoC Platform
Jieli AC692x (32-bit RISC + Audio DSP)
Connectivity
BLE 5.0 (Audio Gateway mode)
Thermal Envelope
< 0.5W peak
Battery
1200mAh, 14 days standby
Client
A leading educational toy brand seeking to create an interactive, cost-effective companion.
Challenge
Integrating voice recognition and playback in a plush form factor without overheating or requiring frequent charging, while keeping the BOM cost under $15.
Product Concept & Architecture
We chose the Jieli AC692x SoC, an ultra-low-cost, highly integrated Bluetooth audio chip. It features a 32-bit RISC MCU and built-in audio DSP. Power is supplied by a 1200mAh Li-ion cell.
Engineering Solution
Instead of running LLMs locally, the AC692x acts as an audio gateway. We implemented a custom FreeRTOS firmware to capture audio via a single MEMS mic, compress it using SBC/Opus, and transmit it via BLE to a parent's smartphone, which handles the heavy AI processing in the cloud.
Result
Battery lasts up to 14 days on standby and 8 hours in active conversation mode. Meets ASTM F963 thermal requirements. BOM cost strictly maintained at $12.50.
Project Profile
Services Delivered
Hardware DesignEmbedded Software
Core Technologies
Wi-Fi/BluetoothTinyMLRTOS
Silicon & Vendors
EspressifJieliZhongke Lanxun
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