Offline Ai Voice Assistant Module Esp32-S3 Secure Local Processing Smart Home Controller No Cloud

Name: Offline Ai Voice Assistant Module Esp32-S3 Secure Local Processing Smart Home Controller No Cloud
Brand: Shenzhen Hstd Import and Export Trade Co., Ltd.
SKU: 2169255722

Guangdong, ChinaShenzhen Hstd Import and Export Trade Co., Ltd.

US$73.90

1 Set

Product specifications

Device Type

Sample price:US$75.00/piece.Request sample

Product profile

Customization

Available

Core Processor

Esp32-S3

Built-in OS Type

Esphome Firmware

Model NO.

HSTD-NC-VK-9727

Series

IoT Voice Module

Package

Custom Enclosure

Function

Voice Recognition, Smart Home Control

Embedded

Yes

Used IC

Xmos Xu316, Ti Aic3202, Esp32-S3-Wroom-1-N16r8

a/D Converter Channels

2 Channels

Sampling Rate

48kHz

Data Interface

USB-C, I2s, Gpio

Input Range

3.3V Logic Level / 5V DC Power

Amplifier Type

Class-D Amplifier / Audio Codec

Output

Speaker Output (2W), 3.5mm Headphone Jack

Supply Voltage

5V DC (Via USB-C)

Board Type

Development Board

Transport Package

Shipping Packaging

Specification

84*84*21 mm

Trademark

HSTD

Origin

Shen Zhen

HS Code

8519813100

Production Capacity

50000 Pieces/Year

Key features

Native HA Integration Designed by the Home Assistant team for seamless, native compatibility within the HA ecosystem without complex hacks.

Premium Audio Quality Features dual microphones and an XMOS processor to effectively reduce noise and ensure clear voice capture anywhere.

Maximum Privacy Control Supports fully local processing and includes a physical hardware mute switch to instantly cut microphone power.

Easy USB-C Setup Simple plug-and-play connection via USB-C. Pairs quickly with Home Assistant with no extra assembly required.

Multi-Language Support Supports more languages than most assistants. Check the Assist documentation for the full list of supported languages.

Company profile

Shenzhen Hstd Import and Export Trade Co., Ltd.

Guangdong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2014-01-01Nearest Port: ShenzhenAverage Response Time: ≤3.97hTerms of Payment: T/T, D/P, LC, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT

AI-Powered supplier vetting

SummaryThe supplier develops and manufactures laser measurement chips, laser measurement modules, and laser wind radar products. It reports ISO 9000 and ISO 9001 certifications, 3D software design, ODM, broad customization, raw-material traceability, and 100% finished-product inspection. R&D staffing is reported at 6–10 engineers, with new products launched during the past year. Production-related evidence is mixed: reported lead time is within 15 workdays in both peak and off-peak periods, but the supplier states it has no inventory service capability and no overseas warehouse, agents, branches, or showrooms. After-sales procedures and corrective-action procedures exist but lack written records. Financial credibility cannot be positively assessed because the provided financial fields show zero operating revenue and zero profit-related figures for the reported periods. No customer cases or named customer references are provided.

Supplier typeThe supplier is a manufacturer and R&D-oriented provider of laser measurement chips, laser measurement modules, and laser wind radar. Its stated product description, factory location, R&D staffing, production output, and export-market coverage support classification as a specialized technology manufacturer rather than only a trading or service intermediary.

CertificationsThe supplier reports holding ISO 9000 and ISO 9001 certification for its management systems. These are explicit certifications relevant to quality-management processes, although no certificate numbers, validity dates, or scope details are provided.

R&D capabilityThe supplier reports new products during the past year, 6–10 years of total R&D engineer experience, 3D software design capability, and ODM services. Its specialized laser product portfolio further supports technical development capability, although no SDK is available.

Production capacityThe supplier reports 100% finished-product inspection, raw-material traceability, 6–10 quality-control staff, and lead times within 15 workdays in both peak and off-peak seasons. However, it explicitly has no in-stock service capability, and the manufacturing-capacity contract status is unknown; therefore, production capability is supported but not fully verifiable.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, flexible customization, and ODM services. This is direct evidence of broad product and design adaptation capability.

Product Q&A

Q:Does this module require a Home Assistant server to function?

Yes. This module is specifically designed as a satellite device for Home Assistant. It requires an active Home Assistant instance on your local network to process voice commands and control your smart home devices.

Q:How does the physical mute switch protect my privacy?

The hardware mute switch physically cuts off the power supply to the dual microphones. When muted, the microphones are completely disabled, ensuring that no audio is captured or transmitted under any circumstances.

Q:Do I need to assemble or flash the firmware myself?

No. The module comes pre-flashed with ESPHome firmware and is ready to use out of the box. You simply need to power it via USB-C and follow the quick pairing process in your Home Assistant dashboard.