DY-SV5W Voice Playback Module This is an intelligent voice module featuring I/O trigger control, UART serial communication, and single-wire bus communication. It includes an onboard 5W Class D amplifier capable of directly driving 4Ω, 3–5W speakers. Supports MP3 and WAV audio decoding formats. Compatible with up to 32GB microSD cards (FAT16/FAT32 file systems). Audio files can be updated via USB connection to a computer. Equipped with a 3.5mm audio input interface, USB flash drive interface, Micro-USB programming interface, and push-button controls. Key Features: 1. Supports MP3 and WAV decoding. 2. Sampling rates supported: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, and 48 kHz. 3. 24-bit DAC output with dynamic range up to 90 dB. 4. Supports FAT16 and FAT32 file systems; compatible with up to 32GB microSD cards and USB flash drives. 5. UART serial control supports playback, pause, track selection, volume adjustment (up to 65,535 tracks), and more at 9600 bps. 6. I/O trigger function: 8-bit I/O ports support triggering up to 8 audio files or 255 combinations. 7. Single-wire bus control supports playback, pause, track selection, and volume adjustment. 8. Three configurable I/O pins enable seven operating modes. 9. Integrated 5W Class D amplifier for direct connection to 4Ω, 3–5W speakers. Specifications: - Product Name: DY-SV5W Voice Playback Module - Model Number: DY-SV5W - Operating Voltage: DC 5V Package Includes: - 1 × DY-SV5W Module Note: Product appearance, color, and labeling may vary slightly between batches. These variations do not affect functionality. Images may differ slightly from actual product due to lighting and screen settings. Dimensions are subject to a tolerance of ±1–3 cm.