Adafruit I2S Amplifier BFF Add-On for QT Py and Xiao

Our QT Py boards enable compact microcontroller projects, now enhanced with the Adafruit I2S Amp BFF for high-quality audio. Perfectly designed, it attaches to the back of your QT Py or Xiao board, offering a 3 Watt amplifier with a MAX98357 chip for superior sound.

Utilizing only three GPIO pins, there's no interference with I2C/UART or SPI ports. This PCB supports ESP32, nRF52840, and RP2040 chipsets, bypassing the ATSAMD21 variants. Assembly is simple with solder or pin headers, making it removable if needed.

Benefits include:

• MAX98357 3 Watt amplifier
• Compatible with 4 or 8 ohm speakers
• Fits any QT Py or Xiao board
• Compact design, easily attachable
• 9 dB gain, pre-configured for 'stereo' mix output

Recommended to pair with a 3W 4 ohm speaker for optimal performance. Suitable for Arduino, CircuitPython, or MicroPython libraries, the amplifier provides a significant enhancement in audio capabilities. Note: Speaker and QT Py not included.