Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Core Chip | Custom AI Voice Processing Unit |
| Recognition Mode | Offline Voice Recognition (No Internet Required) |
| Interface Type | UART Serial / TTL |
| Supported Commands | Up to 80 Customizable Voice Commands |
| Response Time | < 200ms Average Latency |
| Operating Voltage | 3.3V - 5V DC |
| Microphone Input | Analog Mic with Noise Cancellation Support |
| Programming Method | One-Click Serial Download via PC Tool |
| Dimensions | 45mm x 25mm x 8mm |
| Application Scope | Smart Home, Industrial Control, DIY Robotics |
Anonymous
Mar 27, 2026
Rating: 5/5
Reliable serial communication
Integrated this into a home automation prototype. The UART output is stable and parses easily with my microcontroller. No lag detected during testing.
Anonymous
Mar 25, 2026
Rating: 5/5
Exceeded expectations
I was skeptical about offline recognition at this price point, but the ASR-PRO handles custom command sets very well. Highly recommended for industrial control prototypes.
Anonymous
Mar 21, 2026
Rating: 4/5
Good starter kit
As a beginner, I found the learning curve manageable. The ability to test commands immediately after downloading makes debugging much faster.
Anonymous
Mar 14, 2026
Rating: 5/5
Solid build quality
Used this for a factory floor indicator project. It ignores background machinery noise well and triggers only on specific voice prompts. Very robust.
Anonymous
Mar 13, 2026
Rating: 5/5
Perfect for offline projects
This module is incredibly easy to set up. The one-click download feature saved me hours of configuration time. Recognition accuracy is impressive even in a slightly noisy room.
Anonymous
Mar 11, 2026
Rating: 4/5
Great value for learning
Excellent board for students and hobbyists. The documentation could be slightly more detailed in English, but the examples provided work flawlessly out of the box.
Q: How do I update the firmware if a new version is released?
A: Firmware updates are performed exactly like command downloads: connect the board to your PC via the USB-to-TTL adapter, open the tool, select the new firmware file, and click download.
Q: What microcontroller is compatible with this board?
A: Since it communicates via standard UART (TTL levels), it is compatible with almost any microcontroller including Arduino, ESP32, STM32, and Raspberry Pi.
Q: Does this module require an internet connection to function?
A: No, the ASR-PRO performs all voice recognition locally on the chip. It is designed specifically for offline applications to ensure privacy and low latency.
Q: Is a microphone included in the package?
A: The module has a header for an analog microphone. Some kits include a basic mic, but for best performance, we recommend using a high-sensitivity electret microphone purchased separately.
Q: Can I customize the voice commands myself?
A: Yes, you can define up to 80 custom commands using our free PC configuration tool. You simply type the phrases you want the module to recognize and download them via serial.
Wooden Handle Leather Rattle Drum Baby Toy Glue-Free Paint-Free for Ages 1+ Boys and Girls Wooden Shaker
$8.42
![[Folded Booklet] Liu Chunlin: Palace Examination Essay Final Zhuangyuan Small Regular Script Calligraphy Copybook Original Size Long Scroll](https://www.gosteppe.com/cache/small/product/269742/legacy-main-81360b2f385dab43c5030767.webp)
[Folded Booklet] Liu Chunlin: Palace Examination Essay Final Zhuangyuan Small Regular Script Calligraphy Copybook Original Size Long Scroll
$14.20
Stainless Steel Sponge Drain Rack - No-Drill Wall-Mounted Kitchen Sink Organizer for Steel Wool and Scrub Pads
$2.60
Analysis of Wang Duo's Classical Poetry Composition Techniques (50 Analyses + 50 Comparisons)
$89.00
Custom Sheet Music Transcription Service for 'Farewell Letter' for Saxophone, Clarinet, Flute, Trumpet, Violin, and Cello
$12.00
Japanese Surplus san-x Rilakkuma Bowl Set - Oven-Safe Bowl with Base and Two Forks for Ice Cream or Hot Pot
$69.90
Guangda Dental | Swiss Dental Implants Including Abutment, Implant Body, and Crown, Improves Chewing, Restores Missing Teeth
$3,900.00
50pcs Merry Christmas Gift Tags Printed White Paper Labels X
$26.44
Kabaxiong Color Gel Pens - Retractable Morandi Style, High-Aesthetic Japanese INS Set for Journaling and Marking
$8.88
Continental Tires 225 235 245 255 275/35 40 45 50 55R17 18 19 20 21 22
$350.00
Portable Invisible Aligner Case for Orthodontic Retainers - Compact, Breathable Storage Box for Teeth Correctors and Dentures
$18.80
Chushinmi Home Kitchen Sink Foldable Dish Drying Rack Bowl Storage Organizer Drainage Shelf
$59.40
Lanyard Invisible Aligner Case Retainer Storage Box Expander Corrector Holder Portable Breathable Storage Container
$11.42
1.3Cm Size Paper er Labels For Clothing Size Adhesive Printe
$30.44
Meike Air Neck-Worn Air Purifier - Removes Smoke, Odors, Haze, and Airborne Particles
$1,199.16
51 Song Ci Poems, Ou Style Medium Regular Script Brush Calligraphy Red-Tracing Workbook on Xuan Paper, Classic Beginner's Guide to Regular Script
$11.00
Michelin Car Tires - Multiple Sizes Available: 215, 225, 235, 245, 255/45, 50, 55, 60R17, R18, R19, R21
$299.00
RoHS Environmental Tester for Alloy Composition Analysis, Heavy Metal & Halogen Detection, and Metal Coating Thickness Measurement
$7,886.80
Mini Watercolor Paint Sketchbook for Markers, Compact and Portable Thick Paper Notebook for Students
$5.80
![Yonghe Hair Transplant [Standard Scalp Care] for Oily Scalp, Itchiness, Dandruff, Soothing Scalp and Hair Treatment](https://www.gosteppe.com/cache/small/product/269723/legacy-main-863af3438df0d0953cb801df.webp)
Yonghe Hair Transplant [Standard Scalp Care] for Oily Scalp, Itchiness, Dandruff, Soothing Scalp and Hair Treatment
$473.00
High-Strength Quick-Drying Plaster Powder for DIY Models, Dolls, Art Molds, and Aromatherapy Crafts
$7.48
4-Cavity Rectangular DIY Handmade Soap Mold for Custom Soaps, Breast Milk Soap, Essential Oil Soap Base - Silicone Tool
$27.20
100x Blank Kraft Paper Hang Tags Wedding Party Favor Label P
$64.90
Nordic Creative Digital House Number Wrought Iron 3D Decor for Shops, Offices, Homestays, and Villas
$23.00
Piano Sheet Music Collection - Pop and Classical Scores, Tutorial Books, and Staff Notation for Piano and Electronic Keyboard (10,000 Songs)
$10.00
Natural Clear Quartz Faceted Tumbled Beads for DIY Jewelry Making, High-Quality Carved Beads for Bracelets and Necklaces
$1.80
Music Play Lao Wei Khalil Fong Guitar Chord Sheet - Digital Version
$9.00
Kimberly-Clark 41412 WYPALL X70 All-Purpose Wipes - Oil/Absorbent/Solvent Resistant Shop Towels
$110.00
EMG 60/85/81/81TW/89/89R Active Dual-Coil Guitar Pickups - Cuttable and Ready to Install
$910.00
Retainer Storage Case with Mirror for Cleaning and Soaking Portable Orthodontic Aligner Box
$24.93
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
