ISD1820 Voice Recording & Playback Module Sound Sensor with Microphone and 8 Ohm Speaker

The ISD1820 Voice Recording & Playback Module is a compact, easy-to-use sound module engineered for rapid integration into hobbyist and professional electronics projects. Featuring an onboard electret microphone and support for an 8 Ω speaker, this module enables you to record short voice clips and play them back instantly without requiring complex software. Its straightforward controls, low power requirements, and microcontroller-friendly trigger pins make it an ideal choice for interactive toys, prototypes, and voice-enabled devices.

Key Features

• Simple one-button recording: Record up to approximately 10 seconds of clear audio using the onboard REC control.
• Integrated microphone: Built-in electret microphone provides reliable voice capture for speech and sound effects.
• Speaker compatibility: Supports an 8 ohm speaker for audible playback; auxiliary output available for external amplification.
• Multiple playback modes: Includes edge-trigger, level-trigger, and repeat modes for flexible operation.
• Microcontroller interfacing: Easily controlled by Arduino, ESP32, Raspberry Pi and other digital controllers via trigger pins.
• Wide operating voltage: Operates from 3V to 5V DC, suitable for battery-powered or USB-powered systems.
• Compact form factor: Small PCB footprint for effortless integration into enclosures and prototypes.
• Low power consumption: Efficient design keeps battery drain to a minimum during standby and operation.

Applications

• Talking toys and educational gadgets
• Voice notifications, door chimes, and warning systems
• Interactive exhibits and museum displays
• Robotics voice prompts and status indicators
• Prototyping voice-enabled IoT and home automation projects
• Learning kits and classroom electronics experiments

Operational Modes

• REC (Record): Press and hold the REC button to record a message of up to ~10 seconds.
• PLAYE (Edge Trigger): Press once to play the recorded audio one time; useful for single-shot playback.
• PLAYL (Level Trigger): Playback continues while the trigger input or button remains asserted.
• Repeat / Loop: Configure the module to automatically repeat playback when activated.
• External MCU Control: Use digital input pins to initiate recording or playback from a microcontroller.

Specifications

• Core IC: ISD1820 voice recording and playback chip
• Maximum recording time: Approximately 10 seconds
• Operating voltage: 3.0 V to 5.0 V DC
• Speaker support: 8 Ω speaker (onboard connector)
• Microphone: Onboard electret microphone
• Control interfaces: REC, PLAYE, PLAYL, VCC, GND, and trigger pins for MCU
• Audio outputs: Onboard speaker driver and AUX output pins for external amplification
• Board size: Compact, easy-to-mount PCB (dimensions vary by supplier)

Add dependable voice recording and playback functionality to your next project with the ISD1820 Voice Recording & Playback Module. Whether you are building an interactive toy, a smart alert system, or a voice-enabled prototype, this module provides simple controls, reliable performance, and easy integration. Order now from CircuitHub.pk to get genuine components at competitive prices and fast delivery across Pakistan.