DFRobot
Gravity: Voice Recorder Module
The Gravity Voice Recorder Module is a compact board with integrated record and playback functions, based on the ISD1820 chip. Simply press the record button...
The Gravity Voice Recorder Module is a compact board with integrated record and playback functions, based on the ISD1820 chip. Simply press the record button, speak into the onboard microphone, and release to save up to 10 seconds of audio. Playback is instant via the onboard button or by triggering a digital pin from an Arduino-compatible microcontroller.
Connect an 8Ω 3W speaker or an external active speaker for voice output. The module features a standard Gravity 3-pin digital interface for easy integration with DFRobot IO expansion shields and other microcontroller boards.
Key Features
- Record & Play – One-button recording with instant playback capability
- 10-Second Recording – Stores up to 10 seconds of audio per recording
- 100,000 Recording Cycles – Reusable with long-lasting flash memory
- Gravity Interface – 3-pin digital connector for Arduino-compatible microcontrollers
- Onboard Microphone – No external mic required
- Speaker Output – Supports 8Ω 3W speakers or external active speakers
- Compact Size – 37 × 35 mm (1.46 × 1.38 in)
Specifications
- Operating Voltage – 5V
- Sampling Frequency – 6.4 kHz
- Dimensions – 37 × 35 mm
Ideal For
- Interactive projects with voice prompts or alerts
- Sound-activated triggers and alarms
- Educational robotics and Arduino experiments
- Greeting cards and novelty builds
Package Contents
- 1× Voice Recorder Module (ISD1820)
- 1× Gravity digital cable
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- Flash memory
- Non-volatile memory that keeps stored data even when power is removed. In this sensor, it matters because enrolled fingerprint templates can remain saved after the project is turned off.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
Find this product in
Brands
Supplier page — dfrobot.com
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Related Tutorials
Free guides on learn.littlebird.com.au
