ISD1820 Voice Recording Module with Microphone

The ISD1820 Voice Recording Module is an easy solution for adding short voice recordings to your electronics projects. It features on-board buttons for recording and playback and can be controlled directly by any microcontroller (e.g., Arduino). The module includes a built-in microphone and supports direct connection to an 8Ω speaker. Thanks to its non-volatile memory, recordings are retained even after power loss.

Features:

• Main Chip: ISD1820
• Input Voltage: 3V - 5V DC
• Speaker Support: 8Ω, 0.5W
• Recording Time: Up to 10 seconds
• Easy operation via onboard buttons (REC, PLAYE, PLAYL)
• Built-in electret microphone
• Non-volatile analog flash memory for storing audio
• Can be controlled via microcontroller or external trigger
• Suitable for use with plush toys and sound-triggered projects

Button and Jumper Functions:

• REC: Press and hold to record; release to stop.
• PLAYE: Plays the full recorded message once.
• PLAYL: Jog playback mode – plays while the button is held.
• RPL Jumper: Enables loop playback mode.
• FT Jumper: Real-time monitoring – routes microphone audio directly to the speaker.

Pinout:

The module features header pins for easy interfacing with a microcontroller (such as an Arduino). Playback can be triggered via a single digital pin.

Dimensions:

• See product images for detailed dimensions.

Package Includes:

• 1 x ISD1820 Voice Recording Module with Microphone
• 1 x 8Ω 0.5W Speaker