{"product_id":"gravity-offline-voice-recognition-sensor-121-built-in-commands-custom-commands","title":"Gravity: Offline Voice Recognition Sensor (121 Built-in Commands + Custom Commands)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThe Offline Speech Recognition Module is an efficient solution ideal for human-computer interaction, machine learning, voice assistants, and smart home voice control projects. It is easy to use and compatible with Arduino, micro:bit, and ESP32, with \u003ca href=\"https:\/\/wiki.dfrobot.com\/SKU_SEN0539-EN_Gravity_Voice_Recognition_Module_I2C_UART#target_5\" target=\"_blank\"\u003edetailed tutorials\u003c\/a\u003e provided. It offers plug-and-play functionality through I2C and UART. The module supports recognition of 121 built-in English command words, with additional customizable commands. (e.g., recording a cat's meow for an automatic feeder). This module is designed for command recognition (keyword-based), not full speech-to-text or AI conversation. It is highly integrated, including an onboard speaker and microphone, providing real-time voice feedback.\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eEasy to Use\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe offline voice module is simple and compatible with existing platforms like Arduino UNO, micro:bit, and ESP32, with detailed Arduino IDE tutorials and \u003ca href=\"https:\/\/wiki.dfrobot.com\/SKU_SEN0539-EN_Gravity_Voice_Recognition_Module_I2C_UART#target_7\" target=\"_blank\"\u003eMakecode tutorials\u003c\/a\u003e. It supports plug-and-play through I2C and UART communication methods, allowing easy integration into projects.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E12001-content1.webp?v=1790489131\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e121 Ready-to-Use Words\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe built-in commands are commonly used in educational and smart home scenarios, allowing for immediate use without any configuration, such as \"Play music,\" \"Open the door,\" \"Turn on the light,\" and \"Close the window.\" Here is \u003ca href=\"https:\/\/wiki.dfrobot.com\/SKU_SEN0539-EN_Gravity_Voice_Recognition_Module_I2C_UART#target_9\" target=\"_blank\"\u003ethe full list of command words\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E12001-content2.webp?v=1790489154\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSelf-Learning Function\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe self-learning function is user-friendly, allowing users to add 17 customized command words. Any language or sound can be trained as a command, providing great flexibility for interactive audio projects.\u003c\/p\u003e\n\u003cp\u003eTeaching the device new commands is simple. Activate the learning mode with the wake-up word, then say \"Learning command word,\" and repeat the desired command three times. After these steps, the device will have learned the new command. \u003ca href=\"https:\/\/wiki.dfrobot.com\/SKU_SEN0539-EN_Gravity_Voice_Recognition_Module_I2C_UART#target_4\" target=\"_blank\"\u003eDetailed instructions\u003c\/a\u003e are provided to ensure an easy learning process.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E12001-content3.webp?v=1790489181\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eNo Internet Connection, More Secure\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eUsers need not worry about their conversations being recorded and uploaded to the cloud. The module functions seamlessly in outdoor projects, schools, and other environments with unstable networks. Unlike existing online voice assistants that rely on cloud platforms and require internet access, potentially compromising device data privacy during use.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Integration, Saving More Space\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe offline voice module integrates an onboard speaker and microphone. High integration saves space and eliminates the hassle of complicated wiring, enhancing the project's neatness and stability.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReal-Time Voice Feedback\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eUsers can immediately receive recognition results during use, improving user experience and convenience.\u003c\/p\u003e\n\u003cp\u003eThe Offline Speech Recognition Module is an easy-to-use, highly integrated solution perfect for various projects, offering 121 built-in commands, 17 customized commands, real-time voice feedback, and secure offline operation without the need for an internet connection.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E12001-content4.webp?v=1790489218\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUser-Friendly: Plug and play, compatible with Arduino UNO, micro:bit, and ESP32.\u003c\/li\u003e\n\u003cli\u003e121 Pre-Programmed Commands: Ready for immediate use without any setup.\u003c\/li\u003e\n\u003cli\u003eSelf-Learning Capability: Supports the addition of 17 customized command words.\u003c\/li\u003e\n\u003cli\u003eOffline Operation, Enhanced Privacy: No network required.\u003c\/li\u003e\n\u003cli\u003eHigh Integration: Includes an onboard speaker and microphone.\u003c\/li\u003e\n\u003cli\u003eInstant Voice Feedback: Provides real-time recognition results.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Voltage: 3.3 - 5V\u003c\/li\u003e\n\u003cli\u003eMaximum Operating Current: ≤370 mA (5V)\u003c\/li\u003e\n\u003cli\u003eCommunication: I2C\/UART\u003c\/li\u003e\n\u003cli\u003eI2C Address: 0x64\u003c\/li\u003e\n\u003cli\u003eFixed Commands: 121\u003c\/li\u003e\n\u003cli\u003eFixed Wake-up Command: 1\u003c\/li\u003e\n\u003cli\u003eCustom Commands: 17\u003c\/li\u003e\n\u003cli\u003eLearning Activation Command: 1\u003c\/li\u003e\n\u003cli\u003eOnboard Microphone Sensitivity: -28dB\u003c\/li\u003e\n\u003cli\u003eModule Size: 49×32 mm \/ 1.93×1.26”\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 0-70℃\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0539-en\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":50535043924045,"sku":"E12001-001","price":31.72,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E12001-win1.jpg?v=1790489305","url":"https:\/\/www.mlab.com.au\/products\/gravity-offline-voice-recognition-sensor-121-built-in-commands-custom-commands","provider":"MLAB","version":"1.0","type":"link"}