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Ai-Thinker VC-02 Offline Speech Recognition Control Module
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The Ai-Thinker VC-02 Offline Speech Recognition Control Module is a compact voice-control solution designed for electronics, robotics, smart-home, and embedded applications. It uses the Unisound US516P6 voice chip to process voice commands locally, so speech recognition does not require an internet connection or cloud service.
The VC-02 supports Chinese and English voice control and can recognize up to 150 local voice commands. Ai-Thinker also provides customization tools that allow developers to create their own wake words and command sets. The module supports wake-word self-learning without requiring firmware compilation, making it suitable for projects that need customized voice interaction.
For communication with a microcontroller or other embedded hardware, the VC-02 provides interfaces including UART, I2C, PWM, SPI, and GPIO. It also supports AEC (Acoustic Echo Cancellation) and steady-state noise reduction to improve voice recognition in practical applications. With a response time of less than 100 ms specified by Ai-Thinker, the module can be integrated into voice-controlled appliances, automation systems, robotics projects, toys, lamps, and other embedded devices.
The VC-02 is a speech-recognition module, while the VC-02-Kit is the corresponding development board designed to make testing, debugging, and firmware upgrading easier. This product listing should therefore be kept focused on the VC-02 voice-recognition solution rather than mixing in unrelated VC-01-Kit functions.
1 x Ai-Thinker VC-02 Offline Speech Recognition Control Module
| Item Type | AI and Voice Module |
|---|---|
| Model | Ai-Thinker VC-02-Kit |
| Supply Voltage (V) | 5 |
| Current (mA) | 500 |
| Weight (g) | 19 |
| Dimensions (LxWxH) | 4.5 × 3.1 × 1 cm |
The VC-02 offline speech recognition module is designed for voice control in electronics and robotics projects. It enables devices to respond to spoken commands without relying on the internet or cloud services. This makes it ideal for DIY automation, smart home setups, and robotics where reliable, local voice control is needed for better privacy and fast response times.
Yes, the VC-02 module operates entirely offline and does not require internet or Wi-Fi connectivity for speech recognition. It processes voice commands locally, ensuring fast response and secure operation. This makes it perfect for applications needing robust voice control in areas with limited connectivity or where privacy is important.
The VC-02 offline speech recognition module can support up to 150 custom voice commands, offering flexibility for various electronics and robotics projects. Users can program specific commands to fit their requirements, making it easy to control devices or automate tasks with spoken instructions.
The VC-02 offline speech recognition module uses the integrated CDE audio chip as its core microcontroller. This chip handles voice processing and command recognition efficiently, enabling offline operation. The design ensures compatibility with popular development boards like Arduino and ESP32, making integration with robotics and automation projects simple.
Ai-Thinker's current documentation specifically lists Chinese and English voice control and provides separate standard Chinese and English firmware. It does not list Hindi or other Indian regional languages as standard supported languages. Therefore, Hindi or other regional-language support should not be advertised as a standard VC-02 feature unless Ai-Thinker confirms support for the specific firmware or customization method being used.
Yes. The VC series supports wake-word self-learning, and Ai-Thinker provides customization tools for developing custom voice-control profiles. Customization should be performed using the supported Ai-Thinker development platform and firmware tools.
Both VC-01 and VC-02 belong to Ai-Thinker's VC offline voice module series and use the US516P6 voice chip. Both support offline voice recognition, up to 150 local commands, and interfaces such as UART, I2C, PWM and GPIO. The main hardware difference is their module form factor and dimensions: Ai-Thinker's product documentation lists the VC-01 at approximately 25.5 × 24 × 3.2 mm, while the VC-02 is approximately 18 × 17 × 3.2 mm.
Yes. The VC-02 provides communication interfaces including UART, I2C, PWM, SPI and GPIO, allowing it to be integrated with suitable microcontrollers and embedded systems. The exact connection method depends on the interface and firmware configuration used in the project.
The vc-02 ai thinker module wirks perfectly. Detects my voice and performs the action. It has already a built in code when it comes for commands like "hey pudding" and "turn on the light". Thanks so much to TIF labs for providing this in such a low price.
👍👍
Ai-Thinker VC-02 Offline Speech Recognition Control Module
The AI Thinker VC02 is very good quality, or the 4-channel relay module is also great. I received the same product as I ordered.
Excellent
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25cm Multipurpose Engineering Measuring PCB Ruler
I think OV3660 is a good module,but there should be an option for OV2640 too,cause esp32 cam performs better with OV2640. OV3660 will heat very fast and the streaming will be slow,but it has its own use like it has better resolution and better low light image processing.
It is Amazing and great item in this price
Veri usefull and cheap price from other shopping site, I use this module many project. Thank you robocraze
Nice products
25cm Multipurpose Engineering Measuring PCB Ruler
Great servicd
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