The ISD1820 Voice Recording and Playback Module Board is a compact audio recording module designed for voice recording, sound playback, Arduino projects, robotics, automation systems, and DIY electronics applications. It operates with a DC input voltage range of 3V to 5V and is based on the ISD1820 voice recording IC, capable of recording and storing up to 10 seconds of audio.
This module features an onboard microphone for direct voice recording and can drive an 8Ω 0.5W speaker directly without requiring an external amplifier. The recorded audio is stored in non-volatile memory, allowing playback even after power is removed.
The ISD1820 module supports multiple playback modes including single playback, loop playback, and push-button controlled playback. It can be operated manually using onboard buttons or controlled through a microcontroller such as Arduino, ESP32, PIC, AVR, or other embedded systems via digital I/O pins.
Designed for easy integration into electronic projects, the module is commonly used in voice alerts, talking robots, smart home devices, security systems, interactive projects, educational electronics, and embedded audio applications. Its compact PCB design and simple interface make it ideal for beginners and professional developers alike.
Technical Specifications
- Model: ISD1820 Voice Recording Module
- Operating Voltage: 3V–5V DC
- Recording Time: Up to 10 seconds
- Audio Storage: Non-volatile memory
- Onboard Microphone: Yes
- Speaker Support: 8Ω 0.5W speaker
- Playback Modes:
- Single playback
- Loop playback
- Jog playback
- Control Method:
- Push-button control
- Microcontroller I/O control
- Compact PCB module design
Applications
- Arduino projects
- Robotics and automation
- Voice alert systems
- DIY electronics projects
- Interactive learning projects
- Security and alarm systems
- Embedded audio systems
- Smart home applications
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