{"product_id":"ai-thinker-vc02-kit-offline-voice-recognition-module","title":"Ai-Thinker VC-02 Kit Offline Voice Recognition Module","description":"\u003cp\u003e\u003cstrong\u003eAi-Thinker VC-02 Kit\u003c\/strong\u003e is an offline voice-recognition development board built around the VC-02 module and Unisound US516P6 speech-processing chip. It can recognize configured voice commands locally without Wi-Fi, cloud processing or a continuous internet connection, making it suitable for private, low-latency voice control in smart-home, appliance, robotics and embedded projects.\u003c\/p\u003e\n\u003cp\u003eThis complete development kit includes the VC-02 board, external microphone and speaker shown in the product image. The board provides USB-C connectivity for convenient power and development, along with interfaces for connecting external controllers and loads.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOffline speech recognition—no cloud connection required during operation\u003c\/li\u003e\n\u003cli\u003eSupports up to 150 configured local voice commands\u003c\/li\u003e\n\u003cli\u003eUS516P6 voice-recognition processor\u003c\/li\u003e\n\u003cli\u003e2MB Flash and 242KB SRAM\u003c\/li\u003e\n\u003cli\u003eAnalog microphone input and audio DAC output\u003c\/li\u003e\n\u003cli\u003eUART, I²C, PWM and GPIO interfaces for embedded integration\u003c\/li\u003e\n\u003cli\u003eUSB-C development-board connection\u003c\/li\u003e\n\u003cli\u003eIncludes external microphone and speaker\u003c\/li\u003e\n\u003cli\u003eSuitable for Arduino, ESP32, STM32 and other MCU projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eAi-Thinker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eVC-02 Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCore module\u003c\/th\u003e\n\u003ctd\u003eAi-Thinker VC-02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeech processor\u003c\/th\u003e\n\u003ctd\u003eUnisound US516P6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecognition mode\u003c\/th\u003e\n\u003ctd\u003eLocal offline voice-command recognition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCommand capacity\u003c\/th\u003e\n\u003ctd\u003eUp to 150 local commands, depending on firmware\/configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlash memory\u003c\/th\u003e\n\u003ctd\u003e2MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSRAM\u003c\/th\u003e\n\u003ctd\u003e242KB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAudio input\u003c\/th\u003e\n\u003ctd\u003eAnalog microphone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAudio output\u003c\/th\u003e\n\u003ctd\u003eDAC audio output for speaker playback\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl interfaces\u003c\/th\u003e\n\u003ctd\u003eUART, I²C, PWM and GPIO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDevelopment connection\u003c\/th\u003e\n\u003ctd\u003eUSB-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNetwork requirement\u003c\/th\u003e\n\u003ctd\u003eNo internet required for configured command recognition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVoice-controlled lights, relays and smart appliances\u003c\/li\u003e\n\u003cli\u003eHome-automation and IoT control panels\u003c\/li\u003e\n\u003cli\u003eInteractive toys and educational projects\u003c\/li\u003e\n\u003cli\u003eRobotics and hands-free equipment control\u003c\/li\u003e\n\u003cli\u003ePrivate offline voice interfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePackage Includes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Ai-Thinker VC-02 development board\u003c\/li\u003e\n\u003cli\u003e1 × external microphone module\u003c\/li\u003e\n\u003cli\u003e1 × speaker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/voice-module-v3\"\u003eVoice Recognition Module V3\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/wroom-esp32-wifi\"\u003eESP32 WROOM Wi-Fi \u0026amp; Bluetooth Development Board\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/esp32-c3-super-mini-development-board\"\u003eESP32-C3 Super Mini Development Board\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/inmp441-mems-microphone-module-i2s-interface\"\u003eINMP441 I²S MEMS Microphone Module\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pcm5102a\"\u003ePCM5102A I²S Stereo DAC Module\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eDoes the VC-02 need an internet connection?\u003c\/h3\u003e\n\u003cp\u003eNo. Recognition of configured commands runs locally on the module. Internet access may be needed only when using external tools or services to prepare and download a new configuration.\u003c\/p\u003e\n\u003ch3\u003eHow many commands can it recognize?\u003c\/h3\u003e\n\u003cp\u003eThe VC-02 platform supports up to 150 local voice commands, subject to the selected firmware and configuration.\u003c\/p\u003e\n\u003ch3\u003eCan I customize the wake word and commands?\u003c\/h3\u003e\n\u003cp\u003eVoice content depends on the firmware\/configuration generated for the module. Confirm the supported language and customization workflow before planning a production design.\u003c\/p\u003e\n\u003ch3\u003eCan it work with Arduino or ESP32?\u003c\/h3\u003e\n\u003cp\u003eYes. The board can communicate with an external controller through interfaces such as UART, I²C and GPIO, depending on the configured firmware and wiring.\u003c\/p\u003e\n\u003ch3\u003eAre a microphone and speaker included?\u003c\/h3\u003e\n\u003cp\u003eYes. This listing is for the development kit shown in the image and includes an external microphone and speaker.\u003c\/p\u003e\n\u003ch3\u003eIs it the bare VC-02 module?\u003c\/h3\u003e\n\u003cp\u003eNo. This is the VC-02 development kit, which is easier to power, test and integrate than the standalone surface-mount module.\u003c\/p\u003e\n\u003ch3\u003eDoes offline recognition support free conversation?\u003c\/h3\u003e\n\u003cp\u003eNo. It recognizes configured command phrases; it is not a cloud conversational assistant or general-purpose speech-to-text system.\u003c\/p\u003e\n\u003ch3\u003eIs delivery available across Pakistan?\u003c\/h3\u003e\n\u003cp\u003eYes. Embeded Studio delivers to major cities and other serviceable locations throughout Pakistan.\u003c\/p\u003e","brand":"Embeded Studio","offers":[{"title":"Default Title","offer_id":62235591868786,"sku":"ES-AIT-VC02-KIT","price":2150.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/7935\/3202\/files\/AIThinkerVC-02KitOfflineVoiceRecognitionModule.webp?v=1787680092","url":"https:\/\/embededstudio.com\/products\/ai-thinker-vc02-kit-offline-voice-recognition-module","provider":"Embeded Studio","version":"1.0","type":"link"}