The ISD1820 Voice Audio Recording and Playback Module records audio for up to 10 seconds using the ISD1820 IC chip and an onboard microphone, then plays it back through an external 8 Ohm, 0.5W speaker (not included) connected via a 20cm cable, operating from 3V to 5V DC. Unlike sound-detection sensors that only measure loudness or capture audio for digital processing, this isd1820 voice recorder actually stores the recorded sound and replays it on demand.
The isd1820 module can work entirely standalone without any microcontroller — pressing the onboard record button captures sound, and pressing the playback button plays it back through the connected speaker, making it usable as a simple voice message device on its own. This isd1820 voice recorder module can also be triggered via Arduino digital pins instead of physical buttons, allowing automated playback of a pre-recorded message when a connected sensor or condition is triggered.
this voice recorder module’s 10 second recording limit means longer messages or audio clips aren’t possible without external memory expansion, so projects needing extended audio storage would need a different audio module with greater capacity. Available at StemVolt, this module is well-suited for learners building voice message playback systems and practical sound recording electronics projects.
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Features:
- Onboard microphone and IC for complete record-and-playback function
- Up to 10 seconds recording time stored directly on the chip
- Works standalone with buttons or triggered via Arduino digital pins
- 20cm cable for connecting an external 8 Ohm speaker
- 3V to 5V compatible with Arduino and battery-powered setups
Pin diagram of ISD1820 playback module:
Technical specifications:
 Applications:
- ISD1820 used for Arduino automated voice alert message build
- Greeting card uses isd1820 module for India custom voice message gift
- Doorbell uses isd1820 voice recorder module for personalized chime sound
Package includes:
- 1 x ISD1820 Voice Audio Recording and Playback Module
Ahana Choudhury –
Suitable for interactive projects, voice message systems, and Arduino-based applications requiring simple audio storage and playback capabilities.
Vivaan Patnaik –
Helpful staff support
Reyansh Joshi –
Cash on delivery option and responsive support ensured a smooth purchasing experience, while the module delivered clear audio recording and reliable playback performance
Siya Saxena –
Trusted store product
Yuvan Patel –
Impressed with quality
Ishaan Nair –
Easy voice recording and playback functionality, making it ideal for science exhibitions, robotics projects, audio alert systems, and educational electronics applications
Tara Kulkarni –
Secure packaging received
Aarohi Mahajan –
Impressed with quality