Long Description

The ISD1820P 3–5V Voice Recording & Playback Module is a compact and easy-to-use audio module designed for recording and playing back voice messages in embedded and DIY electronics projects. Powered by the ISD1820P voice IC, this module allows users to record up to 20 seconds of audio and replay it with simple button presses or microcontroller triggers.

Operating on a wide voltage range of 3V to 5V, the module is compatible with Arduino, Raspberry Pi (via GPIO logic), AVR, PIC, ARM, and 8051 microcontrollers. It features an onboard electret microphone for direct recording and supports an external microphone for enhanced audio quality. The built-in speaker driver can directly drive a small speaker without the need for an external amplifier.

The module offers multiple control modes, including push-button control for standalone operation and TTL trigger inputs for integration with microcontrollers. This flexibility makes it ideal for applications such as voice alerts, talking robots, greeting devices, alarms, interactive toys, educational projects, and assistive electronics.

With its simple interface, low power consumption, and compact design, the ISD1820P voice module is perfect for beginners and professionals looking to add audio feedback to their projects.