Description
Reviews
| Brand | - |
| Category | Electronic Components Market / Voice Recognition Modules |
| Origin | - |
| Recognition Mode | Offline Voice Recognition |
| Supported Languages | English, Mandarin Chinese |
| Max Command Count | Up to 50 customizable commands |
| Interface Type | UART / TTL Serial |
| Operating Voltage | 3.3V - 5V DC |
| Microphone Input | Analog MIC with AGC support |
| Response Time | < 200ms average latency |
| Development Tool | Web-based configuration portal |
| Dimensions | 45mm x 28mm x 6mm |
| Application Scenario | Smart Home, DIY Robotics, IoT Control |
Anonymous
Mar 31, 2026
Rating: 4/5
Great value, minor documentation gaps
The hardware is solid and recognition accuracy is impressive even with background noise. I deducted one star because the English documentation could be more detailed regarding the serial protocol specifics, but the community forums helped.
Anonymous
Mar 26, 2026
Rating: 5/5
Perfect for offline projects
I needed a voice module that didn't rely on Wi-Fi for my smart lamp project. This ASR-PRO board works flawlessly. The setup via the web interface was intuitive, and recognizing custom commands took less than a minute to configure.
Anonymous
Mar 12, 2026
Rating: 5/5
Reliable and fast
Used this in a prototype for a customer demo. The response time is incredibly fast, and it hasn't failed once during testing. The fact that it runs entirely offline makes it secure and reliable for industrial applications.
Anonymous
Mar 11, 2026
Rating: 4/5
Good for educational kits
We bought ten of these for our workshop. Students found them easy to program. The only downside is that the microphone sensitivity needs careful adjustment in the config tool, otherwise it picks up too much ambient noise.
Anonymous
Mar 09, 2026
Rating: 5/5
Exceeded expectations
For the price point, the performance is outstanding. I replaced a cloud-based solution with this module to reduce latency, and the user experience improved significantly. Highly recommend for anyone building local-first smart devices.
Anonymous
Mar 02, 2026
Rating: 5/5
Easy integration with Arduino
Connected this to my Arduino Uno without any issues. The UART communication is stable, and the ability to train it to recognize specific phrases like 'Open Gate' or 'Start Motor' is exactly what I needed for my automation setup.
Q: Does this module support connecting to an external speaker for voice feedback?
A: No, this module is designed for speech recognition only (input). It does not have Text-to-Speech (TTS) capabilities or an audio output pin for speakers.
Q: Can the module distinguish between different speakers?
A: No, the ASR-PRO performs command recognition based on phonetic patterns, not speaker verification. It will respond to the commanded phrase regardless of who speaks it.
Q: Can I add new voice commands after the initial setup without reflashing firmware?
A: Yes, you can add or modify voice commands at any time using the web-based configuration tool. Changes are saved directly to the module's memory instantly.
Q: What is the maximum distance for effective voice recognition?
A: Under normal indoor conditions with moderate noise, the effective range is approximately 3 to 5 meters. Using an external high-sensitivity microphone can extend this range.
Q: Is there a library available for ESP32 integration?
A: While we do not provide an official dedicated library, the module communicates via standard UART. Many users have successfully integrated it with ESP32 using standard Serial libraries available in the Arduino IDE.
Hell Training Rock Guitar by Shinichi Kobayashi: Electric Guitar Tutorial for Speed Playing
$106.00
![[Buy One Get One Free] Natural Agarwood, Sandalwood, and Cypress Incense Powder Set with Electric Burner](https://www.gosteppe.com/cache/small/product/270397/legacy-main-04181167165316608773b986.webp)
[Buy One Get One Free] Natural Agarwood, Sandalwood, and Cypress Incense Powder Set with Electric Burner
$8.42
Quilt Storage Bag – Large-Capacity Waterproof & Moisture-Proof Moving Pack for Clothes, Luggage, and Comforters
$10.10
Ins-Style Cute Quilted Cotton Camera Storage Bag for CCD and Instant Cameras, Soft Drop-Proof Dust-Proof Small Pouch
$8.50
Gongma Car Tire Stone Removal Tool Set, Tire Cleaning Hook, Multi-Function Stone Picker and Extractor
$40.00
Feileniao 'Competing Beauties' Traditional Chinese Painting Gift Set - Gongbi Line Drawing DIY Kit for Beginners & New Year Gifts
$41.60
9A Natural Ice-Grade Aquamarine Loose Beads - Handmade DIY Bracelets and Necklaces for Women, Devil Blue Crystal Single Bead
$23.10
High-Precision Digital Tire Pressure Gauge with Large Display for Car Inflation
$49.50
Premium Factory Price Low-Temp 3D Printing Pen (2-Pack) - Compatible with PCL Filament
$67.91
Music Theory Book Jazz Theory Introduction Volume 1 Jazz Teaching Theoretical Knowledge Basic Textbook Tutorial HD Electronic Version
$5.00
Extra-Large Transparent Plastic Storage Box with Lid, Home Organizer for Clothes and Household Items
$4.80
Baijiali Artistic Eyebrow Hair Transplant: Bilateral Filling for Sparse Areas, Dense and Natural-Looking Results
$7,800.00
Plastic U-Shaped Trough Mold for Yam Cultivation, Directional Shallow Growth Slots (100 Pieces, Free Shipping)
$31.40
Maikeku Commercial Slow Juicer, Large Pulp-Separating Juice Extractor with High Power, Wide Mouth, Fully Automatic for Street Vending
$7,456.32
Continental CSC5 Tire 245/50R18 104V MO-V for Mercedes-Benz Viano, Vito, V260
$882.00
English Vocabulary Flashcards for Classroom Teaching - Categories Include Weather, Days, Months, Clothing, Home, Seasons, Fruits, Food, and Professions
$8.42
Cabinet Storage Box, Foldable Rattan-Style Basket for Countertop Snacks, Clothes, and Toys
$19.90
Custom PVC Sign Letters, Advertising Signs, Branding Wall Characters, Snowflake Board, Acrylic Crystal Letters for Background Walls
$5.00
Specialized Vegetable Growing Box - Foam Balcony Planter, Rectangular Plastic Pot for Home Gardening
$41.70
Fully Protected Smart Battery Tester - Performance Detector for Electric Vehicle and Car Batteries
$286.00
Large-Diameter Steel Corrugated Drainage Pipe for Bridge Culverts
$61.11
Water Curtain Paint Booth - 3-Meter Spray Station with Water Circulation for Paint Mist Purification, Eco-Friendly Dust Removal, 1-Meter Small Water Curtain Cabinet
$1,980.00
Portable Cleaning and Storage Box for Elderly Dentures, Compact Case for Full-Set False Teeth Soaking and Storage
$32.22
RC Model A07 PNP FPV Analog/Digital Racing Drone 7-Inch Aerial Photography Quadcopter Frame
$1,643.00
ACCSOON SeeMo Monitor Converter for iPhone and iPad, Real-Time Monitoring and Live Streaming
$1,059.00
Solenoid Valve Initial Inspection Test Bench / Solenoid Valve Leakage Test Bench / Solenoid Valve Airtightness Test Bench
$7,482.00
Factory Direct Hardware Screw and Parts Automatic Weighing and Packaging Machine, Vertical Weighing and Packing Equipment
$36,860.00
Commercial Heated Beverage Cabinet, Small Countertop Display Warmer with Constant Temperature for Supermarkets
$1,099.00
Manufacturer Supply Standard Dual-Color Film Copy Paper Ink Water-Based Ink Gravure Printing Machine
$17,500.00
Gray Surface Pen for Sketching and Quick Drawing - Art Highlight Sketch Paper Blending Stump and Sponge Eraser Tool Set for Still Life, Geometry, and Portraits, Designed for Art Students and Exam Candidates, Complete Beginner Kit
$6.80
![Giant Universal Elevator Control Box & Board KSE-SEB-K1 KM51437016G01 [Negotiable]](https://www.gosteppe.com/cache/medium/product/115151/legacy-main-128f1ac951c3ba95859d5c43.webp)
