{"product_id":"gravity-voice-recorder-module-wtr096-v2-0-20s-16khz","title":"Gravity: Voice Recorder Module (WTR096 V2.0, 20s, 16KHz)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eGravity Voice Recorder Module V2.0 is a compact embedded audio recording board designed for quick voice capture and playback in interactive electronics. The small audio module records sound while a button is pressed and stores up to 20 seconds of audio for immediate playback through an external speaker. A 16KHz sampling frequency provides clear voice reproduction, while the wide 3.3V–5V operating range supports integration with common development platforms such as Arduino. This compact sound playback module suits interactive installations, educational prototypes, robotics alerts, and DIY electronic builds requiring simple recorded audio output.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9c00;\"\u003e\u003cb\u003eNote: \u003c\/b\u003e\u003c\/span\u003eKey aspects such as the 100,000 repeatable recording cycles, physical dimensions (37mm × 35mm), and core functionalities including single‑button recording and the 3‑pin digital interface remain consistent with the previous generation. The current version extends recording time to 20 seconds, increases the sampling frequency to 16KHz, and expands the operating voltage range to 3.3V–5V.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eEffortless Single‑Button Audio Recording\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA built‑in recording trigger enables immediate sound capture with a simple press‑and‑hold action. Audio recording begins when the button is pressed and stops upon release, storing the captured sound for later playback. This intuitive control method eliminates complex configuration, making the embedded voice recording board convenient for rapid prototyping, sound tagging, and interactive hardware projects where quick audio input is required.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eClear 16KHz Audio Playback with Flexible Output\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe embedded sound recorder stores up to 20 seconds of audio and reproduces recordings through external speakers. Support for an 8Ω 3W speaker or active speaker enables flexible amplification options depending on the application environment. The upgraded 16KHz sampling rate significantly improves voice clarity compared with earlier versions, producing more intelligible sound output for announcements, alerts, or short voice prompts.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDigital Interface for Microcontroller Control\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA 3‑pin digital interface allows the interactive audio module to connect directly with microcontrollers and embedded control systems. Playback can be triggered programmatically through digital signals, enabling automated voice feedback or conditional sound effects in robotics, smart devices, and interactive installations. This digital trigger capability transforms the small recording board into a programmable audio response component for embedded electronics.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCompact Hardware with Long Recording Lifespan\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe miniature recording board measures only 37mm × 35mm, allowing convenient installation inside enclosures or compact prototypes. Support for up to 100,000 recording cycles ensures reliable long‑term operation in frequently updated applications such as message devices or demonstration systems. Durable construction and small footprint make the module well suited for embedded audio projects where space and reliability are critical.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E32006-content1.webp?v=1791493934\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eFigure: Wiring diagram of Gravity Voice Recorder Module\u003c\/p\u003e\n\u003cp\u003eRecommended external speaker: JST-2P 3W8Ω Speaker.\u003c\/p\u003e\n\u003cp\u003eCompact audio recording electronics such as this embedded voice playback module are widely used in robotics prompts, interactive exhibits, educational demonstrations, talking devices, and custom notification systems. Simple recording control combined with programmable playback makes the hardware suitable for prototyping smart gadgets, STEM learning projects, and responsive embedded systems that require short recorded audio messages.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-button voice recording operation\u003c\/li\u003e\n\u003cli\u003eUp to 20 seconds audio storage\u003c\/li\u003e\n\u003cli\u003e16KHz sampling frequency for clear playback\u003c\/li\u003e\n\u003cli\u003e3-pin digital interface for microcontroller-triggered playback\u003c\/li\u003e\n\u003cli\u003eSupports 8Ω 3W speaker or active speaker output\u003c\/li\u003e\n\u003cli\u003eWide operating voltage: 3.3V–5V\u003c\/li\u003e\n\u003cli\u003eUp to 100,000 repeatable recording cycles\u003c\/li\u003e\n\u003cli\u003eCompact size suitable for embedded electronics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInteractive electronics projects\u003c\/li\u003e\n\u003cli\u003eRobotics voice prompts and alerts\u003c\/li\u003e\n\u003cli\u003eDIY talking devices and greeting modules\u003c\/li\u003e\n\u003cli\u003eEducational demonstrations and STEM learning kits\u003c\/li\u003e\n\u003cli\u003eSmart notification or reminder systems\u003c\/li\u003e\n\u003cli\u003eMuseum exhibits and interactive installations\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\u003eRecording time: 20 seconds\u003c\/li\u003e\n\u003cli\u003eSampling frequency: 16KHz\u003c\/li\u003e\n\u003cli\u003eRepeatable recording times: 100,000\u003c\/li\u003e\n\u003cli\u003eDimensions: 37*35 mm\/1.46*1.38 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGravity Voice Recorder Module V2.0 ×1\u003c\/li\u003e\n\u003cli\u003eGravity digital cable ×1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0197\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67626383999053,"sku":"E32006-001","price":14.57,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E32006-win1.jpg?v=1791493972","url":"https:\/\/www.mlab.com.au\/products\/gravity-voice-recorder-module-wtr096-v2-0-20s-16khz","provider":"MLAB","version":"1.0","type":"link"}