Voice recording with Playback Loudspeaker Module ISD1820

Description

The ISD1820 is a versatile sound recording and playback module that allows you to record and play back short audio clips. It's a popular choice for DIY electronics projects, offering a simple and effective solution for adding sound capabilities to your creations.

Applications:

• Greeting Cards: Record personalized messages or songs for special occasions.
• Electronic Toys: Add voice prompts or sound effects to interactive toys.
• Security Systems: Create custom voice alerts or alarms.
• Home Automation: Use for voice-activated commands or notifications.
• Educational Tools: Record lessons, language practice, or storytelling.
• DIY Projects: Incorporate sound into various projects, from alarm clocks to game consoles.

Key Features:

• Voice Recording: Captures audio input and stores it in non-volatile memory.
• Voice Playback: Plays back recorded messages with high fidelity.
• Low Power Consumption: Operates on low voltage and current, making it energy-efficient.
• Simple Interface: Easy to use with basic electronic components.
• Compact Size: Suitable for small-scale projects.
• Durable Construction: Ensures long-lasting performance.

DATA SHEET AND USECASE

Key Features:

• Recording Duration: Adjustable between 8 to 20 seconds by modifying the sampling resistor (ROSC). For instance, a 100kΩ resistor provides approximately 10 seconds of recording time.

• Operating Modes:

  • Standalone Mode: Utilize the on-board buttons for direct control:

    • REC: Press and hold to record; release to stop.
    • PLAYE: Press once to play the entire recorded message.
    • PLAYL: Press and hold to play; release to stop playback.

  • Microcontroller Mode: Control recording and playback functions via digital I/O pins, enabling integration with systems like Arduino.

• Power Supply: Operates on a single 3V power supply and includes an on-chip 8Ω speaker driver.