Audio Adapter Shield Rev D for Teensy 4.0 and Teensy 4.1 Microcontroller

This Teensy Audio Adapter Board from PJRC can be added to a Teensy 4.0 or Teensy 4.1 microcontroller development board to provide you with high-quality 16-bit, 44.1 kHz sample rate audio to your Teensy 4 microcontroller in an easy-to-use shield. With the Teensy audio library, you will be able to use both the input and output simultaneously in order to make a variety of great audio projects, incorporate synth waveforms, effects, and mix multiple sound streams and CD-quality audio to your headphones or different line outs. The Teensy Audio Shield Rev D for Teensy 4 utilizes the SGTL5000 stereo codec with headphone amp IC to decode and drive audio files and the Cortex-M4 DSP instructions from the Teensy 4.0/4.1 development board to provide power to a real-time FFT. Each board is equipped with a 3.5mm audio jack for headphones, a micro-SD card slot for storing audio files, and optional spaces for a 25k potentiometer (volume control) and flash memory chip. The two rows of 14x1 headers are n