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.
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