{"product_id":"dfplayer-mini-mp3-player-module-serial-control-microsd","title":"DFPlayer Mini MP3 Player Module – Serial Control, MicroSD","description":"\u003ch1\u003eDFPlayer Mini MP3 Player Module with MicroSD Support and Serial Control\u003c\/h1\u003e\n\n\u003cp\u003eThe DFPlayer Mini is a compact, low-cost MP3 player module that integrates a microSD card reader and a 3W amplifier. It decodes MP3, WAV, and WMA files and can be controlled via simple serial commands from a microcontroller like Arduino. This module is perfect for adding high-quality audio playback to your projects, such as voice alerts, music players, or interactive sound effects.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V - 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAudio Output\u003c\/td\u003e\n\u003ctd\u003e3W into 4Ω speaker, or line-out\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSupported Formats\u003c\/td\u003e\n\u003ctd\u003eMP3, WAV, WMA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eStorage\u003c\/td\u003e\n\u003ctd\u003emicroSD up to 32GB (FAT16\/FAT32)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eControl Interface\u003c\/td\u003e\n\u003ctd\u003eUART (serial) at 9600 bps default\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eDIY MP3 player with playback controls\u003c\/li\u003e\n  \u003cli\u003eVoice prompt system for security or automation\u003c\/li\u003e\n  \u003cli\u003eInteractive sound effects for props or toys\u003c\/li\u003e\n  \u003cli\u003eBackground music player for exhibitions or kiosks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eWorks with Arduino Uno, Nano, Mega, ESP32, and Raspberry Pi (using UART). Voltage compatible with 5V and 3.3V logic. Pair with small speakers or headphones via line-out.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect VCC to 5V, GND to GND, TX to microcontroller RX, RX to microcontroller TX. Use a 1K resistor on RX line if using 5V microcontroller to avoid damage. Module includes onboard antenna for minimal noise.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino Uno?\u003c\/summary\u003e\u003cp\u003eYes, it uses serial communication; connect DFPlayer's TX to Arduino's RX (pin 0) and RX to TX (pin 1). Use the SoftwareSerial library if needed.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I load audio files?\u003c\/summary\u003e\u003cp\u003eSimply copy MP3\/WAV files onto a FAT16\/FAT32 formatted microSD card, insert, and they will be accessible by file number or name via serial commands.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan it drive a speaker directly?\u003c\/summary\u003e\u003cp\u003eYes, it has a built-in 3W amplifier; connect a 4Ω or 8Ω speaker to the SPK pins. For louder sound, use an external amplifier via line-out.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445082087789,"sku":"CDN-0942","price":240.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_0db65c3c-5d25-4c9e-a289-8c95ea32c2fe.jpg?v=1781513198","url":"https:\/\/compoden.com\/products\/dfplayer-mini-mp3-player-module-serial-control-microsd","provider":"Compoden","version":"1.0","type":"link"}