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Smart Home
Scentient
AI Smart Aroma Diffuser based on Jieli AC6921
Voice-programmable smart diffuser that adjusts fragrance intensity based on room occupancy and time of day.
Coverage
500 sq ft
Noise Level
28 dB
Scentient
Client
A premium home fragrance brand wanting to add smart, programmable scent scheduling to their luxury diffuser line.
Challenge
Integrating reliable BLE control and voice-assistant compatibility into an existing ultrasonic diffuser platform without changing the industrial design or increasing the 12V power supply.
Product Concept & Architecture
We integrated the Jieli AC6921 Bluetooth audio SoC into the diffuser's control PCB. It drives the existing piezoelectric transducer via MOSFET and reads a float-type water level sensor. The existing 12V→5V DC-DC converter powers the SoC without modification.
Engineering Solution
Custom firmware on the AC6921 implements a BLE GATT service with characteristics for mist intensity, timer, and LED color. The SoC's built-in audio ADC monitors ambient noise to automatically adjust fan speed (quieter at night). A companion app syncs schedules via BLE. For Alexa/Google Home integration, we added an ESP32-C3 as a Wi-Fi bridge communicating with the AC6921 over UART.
Result
Seamless retrofit into existing industrial design. 28dB silent operation at night mode. 90-day schedule autonomy once programmed.
Deep Tech FAQ
What makes the AI Smart Aroma Diffuser based on Jieli AC6921 unique?+
The AI Smart Aroma Diffuser based on Jieli AC6921 leverages custom hardware and edge AI to deliver industry-leading performance and efficiency.
What are the core technical benefits?+
Key benefits include low power consumption, real-time processing, robust connectivity, and a compact form factor tailored for deployment.
Can this architecture be adapted for other use cases?+
Absolutely. The underlying methodology is modular and can be retargeted for various applications with minimal redesign.
Project Profile
Services Delivered
Hardware DesignEmbedded Software
Core Technologies
Wi-Fi/BluetoothTinyMLRTOS
Silicon & Vendors
JieliTDK
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