{"product_id":"gravity-offline-language-learning-voice-recognition-sensor-for-arduino-raspberry-pi-python","title":"DFRobot Gravity: Offline Language Learning Voice Recognition Sensor for Arduino \/ Raspberry Pi \/ Python \/ ESP32 - I2C \u0026 UART | SEN0539-EN","description":"\u003ch2\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\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 \u003c\/span\u003eArduino\u003cspan\u003e, \u003c\/span\u003emicro:bit\u003cspan\u003e, and \u003c\/span\u003eESP32\u003cspan\u003e, with \u003c\/span\u003edetailed tutorials\u003cspan\u003e provided. It offers plug-and-play functionality through I2C and UART. The module features 121 built-in command words commonly used in education and smart home settings and supports 17 customized commands (e.g., recording a cat's meow for an automatic feeder). The module is highly integrated, including an onboard speaker and microphone, providing real-time voice feedback.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eVersion History \u0026amp; Important Information\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan style=\"color: #ff0000;\"\u003eNote:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003eDFRobot warehouses stock both V1.0 and V1.1 of this module. You may receive either version. Rest assured, both versions deliver the same core speech recognition functionality, performance, and key features outlined in this product description.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eV1.1 (May 8, 2025):\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis version includes minor iterative refinements focused on physical handling and assembly convenience:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eImproved Speaker Connection: The onboard speaker connection is an easier plug-and-play connector (V1.0 has a soldered connection). This simplifies assembly and modification.\u003c\/li\u003e\n\u003cli\u003eEnhanced Sensor Mounting: Mounting holes have been added to the sensor board for more secure attachment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eV1.0 (March 2023):\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe original robust and fully capable module. It provides the complete suite of offline speech recognition features and offers a highly effective and reliable user experience.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0531\/3419\/6927\/files\/VERSION_UPDATE.jpg?v=1749265169\" alt=\"\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003eVersion Update of Gravity: Offline Language Learning Voice Recognition Sensor\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eUser-Friendly: Plug and play, compatible with\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.dfrobot.com\/product-838.html\" target=\"_blank\"\u003eArduino UNO\u003c\/a\u003e,\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.dfrobot.com\/product-2125.html\" target=\"_blank\"\u003emicro:bit\u003c\/a\u003e, and\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.dfrobot.com\/product-2771.html\" target=\"_blank\"\u003eESP32\u003c\/a\u003e.\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\u003c\/div\u003e\n\u003ch2\u003e\n\u003cbr\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVoice recognition interaction\u003c\/li\u003e\n\u003cli\u003eVoice-controlled terminal\u003c\/li\u003e\n\u003cli\u003eCompetition and project development\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n\u003cbr\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\n\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 Command: 121\u003c\/li\u003e\n\u003cli\u003eFixed Wake-up Command: 1\u003c\/li\u003e\n\u003cli\u003eCustom Command: 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\u003c\/ul\u003e\n\u003ch2\u003e\n\u003cbr\u003e\u003cstrong\u003ePart List:\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGravity: Voice Recognition Module - I2C \u0026amp; UART x1\u003c\/li\u003e\n\u003cli\u003eGravity-4P I2C\/UART Sensor Connector x1\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":43696845717695,"sku":"MLE04554","price":1190.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0531\/3419\/6927\/files\/MLE04554.jpg?v=1749265282","url":"https:\/\/makerlab.ph\/products\/gravity-offline-language-learning-voice-recognition-sensor-for-arduino-raspberry-pi-python","provider":"Makerlab PH","version":"1.0","type":"link"}