ISD1760 Voice Recording And Playback Module

The ISD1760 Voice Recording and Playback Module offers a simple and effective solution for adding audio functionality to your projects. This powerful yet easy-to-use module is centered around the ISD1760 chip, providing high-quality, non-volatile voice recording and playback capabilities. You can record and store up to 60 seconds of audio, making it perfect for custom sound alerts, voice prompts, and interactive installations. Whether you’re a hobbyist or a professional, this module’s straightforward interface and robust performance make it an ideal choice for a wide variety of applications, from educational kits to industrial control systems.

Key Features:

• Onboard Microphone: Capture audio directly without the need for an external microphone, simplifying your circuit design.
• Push-Button Control: Utilize the integrated push-buttons for easy record, playback, and erase functions without requiring a microcontroller.
• SPI Interface: The module includes an SPI interface, giving you full control over recording and playback from a microcontroller like Arduino or ESP32.
• Non-Volatile Storage: Your recorded messages are saved to the on-chip flash memory, so they remain intact even after you remove power.
• Adjustable Sampling Rate: Choose different sampling frequencies to balance recording quality and duration. A lower rate gives you more recording time.
• Built-in Speaker Driver: Connect a speaker directly to the module to amplify and play back your recorded audio.

Technical Specifications:

• Chipset: ISD1760PY01-60S
• Operating Voltage: 5V DC
• Recording Time: 60 seconds (at 8 kHz sampling rate)
• Sampling Rates: 4 kHz to 12 kHz, user-selectable
• Current Consumption: ~25 mA (playback), ~1 mA (standby)
• Speaker Output Power: Up to 100 mW into an 8-ohm speaker
• Control Interface: Push-buttons or SPI

Mechanical Specifications:

• Mounting Holes: Two mounting holes for secure installation.
• Connectors: Pin headers for easy breadboard and jumper wire connections.
• Material: Standard FR4 PCB with silkscreen labels for pins and components.

Dimensions:

• Board Length: ~48 mm
• Board Width: ~43 mm
• Board Thickness: ~1.6 mm

Pinout and Wiring:

• VCC: Power supply input (5V).
• GND: Ground.
• SP-: Speaker negative terminal.
• SP+: Speaker positive terminal.
• REC: Hold low to start recording.
• PLAYE: Hold low for edge-triggered playback.
• PLAYL: Hold low for level-triggered playback.
• ERASE: Hold low to erase the last message.
• F/W: Fast forward (skips to the next message).
• Wiring Note: Connect VCC to 5V and GND to ground. For simple operation, use the onboard buttons. To control with a microcontroller, connect the appropriate pins (e.g., REC, PLAYE) to your microcontroller’s digital pins.

Datasheet Reference:

• Download Datasheet

Commonly Used In:

• Robotics: Add voice commands or audio feedback to robots.
• Interactive Displays: Create museum exhibits or kiosks with audio instructions.
• DIY Projects: Build talking greeting cards, sound effects machines, or custom alarm systems.

Applications:

• Elevator Annunciators: Provide floor announcements or emergency instructions.
• Security Systems: Record and play back alerts or pre-recorded warnings.
• Educational Toys: Create interactive toys that speak or play sounds.
• Industrial Alerts: Deliver specific voice messages for machine status or errors.

Equivalent Models:

• ISD1820: A simpler and more common module, but with a shorter recording time (~10-20 seconds) and fewer features.
• DFPlayer Mini: A popular MP3 player module that plays pre-recorded audio files from a microSD card, offering more storage and flexibility but lacking direct recording capabilities.

Package Includes:

• 1 x ISD1760 Voice Recording and Playback Module