The DFRduino M0 Audio Expansion Shield is designed to enhance audio capabilities on the Arduino platform. It incorporates the advanced WM8978 audio processor from Wolfson, known for its high-quality performance. This shield offers a full-featured digital signal processing kernel, enabling features such as 3D surround-sound enhancement and 5-frequency band balance, enhancing overall sound quality. Additionally, it includes a programmable notch filter to effectively eliminate noise caused by current noise and other sources.

Leveraging the abundant hardware resources available on the DFRduino M0, this shield allows for the seamless integration of a high-fidelity codec chip into the Arduino platform. It offers a range of functions, including dual-channel audio playback, SD card storage, mono recording, and dual-channel 3W power amplification (PA). These features are available without the need for a separate serial port MP3 module. The shield efficiently utilizes serial port resources, provides flexible control options, and ensures convenient usage.

The DFRduino M0 Audio Expansion Shield utilizes a standard IIS interface and is equipped with an onboard microphone and a 3.5mm audio jack, facilitating external voice source input and output. It also includes left and right channel speakers, allowing for the connection of 3W speakers for audio playback.

With its advanced audio processing capabilities, flexible connectivity options, and convenient features, the DFRduino M0 Audio Expansion Shield provides an excellent solution for enhancing audio capabilities in Arduino projects.

Features:

WM8978 professional Hi-Fi codec chip
Standard IIS interface
Dual 3W amplifier
Support onboard MIC, DC3.5 MIC Input

Specifications:

Operating Voltage: 5V
Maximum Operating Current: 2A
Audio Format: wav file
DFRduino M0 shield package
Input Interface: 3.5mm MIC & On-board MIC
Output Interface: 3.5MIC headphone & XH2.54 Speaker pins
Dimension: 55mm * 53mm/2.16"" * 2.08""
Weight 26g