Attributes

Brand	-
Category	Electronic Components Market / Voice Recognition Modules
Origin	-
Core Model	ASRPRO 2.0
License Type	Tianwen Officially Licensed
Operation Mode	Offline Voice Control
Supported Languages	Mandarin Chinese, English
Interface	UART, I2C, GPIO
Power Supply	3.3V - 5V DC
Microphone Input	Analog Mic / Digital PDM
Response Time	< 200ms
Custom Commands	Up to 150 offline commands
Dimensions	45mm x 20mm x 8mm

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Exceeded expectations

Easy to set up and the offline capability is a huge plus for privacy-focused projects. The Tianwen official licensing gives me confidence in long-term support.

Anonymous

Mar 26, 2026

Rating: 5/5

Perfect for offline IoT projects

This module works exactly as described. The offline recognition is fast and accurate, even with a bit of background noise. Great for my smart home automation setup without needing cloud connectivity.

Anonymous

Mar 23, 2026

Rating: 5/5

Fast response time

The latency is incredibly low. My lights turn on almost instantly when I speak the command. The build quality of the core board feels solid too.

Anonymous

Mar 20, 2026

Rating: 4/5

Great for robotics

Using this for a voice-controlled robot arm. It handles multiple commands well. Would give 5 stars if the microphone sensitivity adjustment was a bit more granular in the software.

Anonymous

Mar 04, 2026

Rating: 4/5

Good value, clear documentation

The Tianwen license ensures good compatibility. Documentation was easy to follow for integrating with my ESP32. Only minor issue was the pin spacing, but nothing a breadboard couldn't handle.

Anonymous

Mar 01, 2026

Rating: 5/5

Reliable voice control

I've tested several modules, and the ASRPRO 2.0 stands out for its stability. It recognizes custom command sets very well after training. Highly recommended for developers.

5 FAQ

Q: Is a microphone included with the development board?

A: The core board includes a footprint for an analog microphone, but the microphone component itself is sold separately to allow for flexible placement.

Q: Can I customize the voice commands myself?

A: Yes, you can define up to 150 custom offline commands using the provided configuration tools and software suite.

Q: What voltage should I supply to the VCC pin?

A: The module operates safely between 3.3V and 5V DC. We recommend 3.3V for optimal compatibility with most microcontrollers.

Q: Does it support English language recognition?

A: Yes, the firmware supports both Mandarin Chinese and English. You can switch languages via the configuration software.

Q: Does this module require an internet connection to function?

A: No, the ASRPRO 2.0 is designed specifically for offline voice recognition. All processing happens locally on the chip.

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