Recordable Sound Module FZ4523 User Manual

1. Introduction

The stemedu FZ4523 Recordable Sound Module is a versatile and programmable audio playback device designed for creative DIY projects. With 8MB of internal memory, it supports MP3 and WAV audio formats, allowing users to easily upload custom sounds. It features both button and TTL trigger control modes, making it suitable for applications such as musical greeting cards, DIY music boxes, photo frames, and other interactive gifts. This manual provides detailed instructions for setting up, operating, and maintaining your sound module.

2. Specifications

3. Package Contents

The standard package (Bundle 1) includes the following items:

• 1 x Recordable Sound Module (main board with speaker and button pre-connected)
• 1 x Battery Case (requires 3 x AAA batteries, not included)
• 1 x Micro USB Cable

4. Setup Instructions

1. 4.1 Power Supply Connection

   The module can be powered by either a 4.5-5V non-rechargeable battery source (e.g., 3x AAA batteries in the provided battery case) or a 3.4-5V 3.7V rechargeable lithium battery. Ensure correct polarity when connecting the power source.

   

2. 4.2 Component Connections

   The speaker and button are typically pre-connected to the main sound module board. If not, connect them to the designated ports as shown in the diagram below. The battery case connects to the power input wires (red for positive, black for negative).

   

   

3. 4.3 Uploading Audio Files

   To upload MP3 or WAV audio files to the module's 8MB memory:

   • Connect the module to your computer using the provided Micro USB cable.
   • The module will be recognized as a removable USB drive (similar to an MP3 player).
   • Drag and drop your desired MP3 or WAV audio files into the module's storage.
   • Safely eject the USB drive from your computer before disconnecting the cable.

5. Operating Instructions

1. 5.1 Basic Playback (Button Control)

   Once audio files are uploaded and the module is powered, press the connected button to trigger playback according to the selected mode (see Section 5.2).

2. 5.2 Mode Switching

   The module supports various playback modes, which can be configured by adjusting the 3.3K resistors on the board. The default mode is '000'. Refer to the table below for different mode configurations and their corresponding behaviors for both Button Control and TTL Control.

   

   Control Mode Notes:

   • In the table, '0' means with 3.3K resistor; '1' means without 3.3K resistor.
   • Power-ON-Play Mode: The module will enter Power-ON-Play mode if short circuit between two pads of button. This means it will play voice immediately when powered on.

3. 5.3 Volume Adjustment

   Locate the volume adjuster on the module board (refer to Figure 4.3) and use a small screwdriver to adjust the playback volume as needed.

6. Maintenance

• Keep the module in a dry environment to prevent damage from moisture.
• Avoid exposing the module to extreme temperatures or direct sunlight.
• Handle the circuit board with care to prevent static discharge or physical damage to components.
• If using the battery case, replace AAA batteries when playback quality degrades or the module stops responding.
• Clean the module gently with a dry, soft cloth if necessary. Do not use liquids or harsh chemicals.

7. Troubleshooting

• No Sound:
  • Check if the power supply is correctly connected and providing sufficient voltage.
  • Ensure batteries are inserted correctly and are not depleted.
  • Verify the speaker is properly connected to the module.
  • Confirm that audio files are successfully uploaded to the module's memory.
  • Check the selected mode configuration (refer to Section 5.2) to ensure it matches your intended trigger method.
• Module Not Recognized by Computer:
  • Ensure the Micro USB cable is securely connected to both the module and the computer.
  • Try a different USB port on your computer.
  • Try a different Micro USB cable.
  • Restart your computer.
• Audio Quality Issues:
  • Check the quality of the original audio file.
  • Adjust the volume using the volume adjuster on the board.
  • Ensure the speaker is not obstructed.

8. User Tips

• Creative Applications: This module is perfect for personalizing gifts. Consider embedding it in handmade greeting cards, photo albums, or custom-built music boxes for a unique touch.
• Experiment with Modes: Explore the different playback modes (Section 5.2) to find the best fit for your project. For example, a 'play once and stop' mode is ideal for greeting cards, while a 'cycle play' mode might suit a continuous display.
• Audio File Management: Keep your audio files organized and ensure they are in MP3 or WAV format for compatibility. Remember the 8MB memory limit when selecting files.
• Power-On-Play: For projects that require immediate sound upon activation, utilize the Power-ON-Play mode by shorting the button pads.

9. Product Demonstration

10. Compliance and Warnings

⚠ WARNING: This product can expose you to chemicals including phthalates (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

11. Warranty and Support

For technical support, troubleshooting assistance, or warranty inquiries, please contact the seller directly through the platform where the product was purchased. Please provide your order number and a detailed description of the issue for prompt assistance.