Attributes

Brand	-
Category	Electronic Components Market / Voice Recognition Modules
Origin	-
Chip Model	ASRPRO 5.0
Recognition Mode	Offline Voice Recognition
Supported Languages	Chinese, English (Customizable)
Interface Type	UART, GPIO, I2C
Operating Voltage	3.3V - 5V DC
Microphone Input	Analog MIC / Digital PDM
Command Capacity	Up to 500 customizable commands
Response Time	< 200ms
Dimensions	45mm x 25mm x 8mm
Application Scenario	Smart Home, IoT Devices, DIY Electronics

6 reviews

Anonymous

Mar 26, 2026

Rating: 5/5

Perfect for my smart lamp project

This module worked flawlessly out of the box. The offline recognition is surprisingly accurate even with background noise. Setup via UART was straightforward using the provided documentation.

Anonymous

Mar 25, 2026

Rating: 5/5

Exceeded expectations

Very impressed with the sensitivity. I can whisper commands from across the room and it still picks them up. The development board layout makes prototyping easy.

Anonymous

Mar 22, 2026

Rating: 4/5

Solid core module

Good build quality and stable firmware. The only reason for 4 stars is that the English voice pack needs a bit more tuning for heavy accents, but overall a great product.

Anonymous

Mar 17, 2026

Rating: 5/5

Robust offline performance

I needed a solution that didn't rely on cloud connectivity, and this fits the bill perfectly. The latency is low, and the GPIO triggers are very reliable for controlling relays.

Anonymous

Mar 09, 2026

Rating: 4/5

Great value, minor learning curve

The hardware quality is excellent for the price. It took me a little while to configure the custom command set, but once done, it responds instantly. Highly recommended for hobbyists.

Anonymous

Mar 05, 2026

Rating: 5/5

Easy to start with

As someone new to voice modules, I found the tutorials helpful. Got my first voice-controlled fan running in under an hour. Will buy more for other projects.

5 FAQ

Q: What is the maximum distance for effective voice pickup?

A: With a standard electret microphone, the effective range is typically 3 to 5 meters in a quiet environment. This can be improved with a higher gain microphone array.

Q: Does this require an internet connection to work?

A: No, this is a fully offline voice recognition module. All processing is done locally on the chip, ensuring privacy and zero latency due to network issues.

Q: Can I train this module to recognize specific custom phrases?

A: Yes, the ASRPRO 5.0 supports up to 500 customizable voice commands. You can configure these using the official PC configuration tool via USB-UART.

Q: Is there a library available for Arduino integration?

A: Yes, we provide sample code and libraries for Arduino, ESP32, and STM32. You can download them from the 'Downloads' section on our product wiki page.

Q: Can I power this directly from a 5V USB port?

A: Absolutely. The board includes an onboard LDO regulator that accepts input voltages between 3.3V and 5V, making it compatible with standard USB power sources.

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