{"product_id":"adafruit-i2s-amplifier-bff-add-on-for-qt-py-and-xiao","title":"Adafruit I2S Amplifier BFF Add-On for QT Py and Xiao","description":"\u003cp\u003eQT Py\/Xiao boards are a great way to make very small microcontroller projects that pack a ton of power - and now Adafruit have a way for you to add a I2S 3 Watt amplifier, for high quality audio playback, that can fit on the back of your miniature dev board. It uses just three GPIO pins that do not intersect with the I2C\/UART or SPI port.\u003c\/p\u003e\n\u003cp\u003eAdafruit call this the \u003cstrong\u003eAdafruit I2S Amp BFF\u003c\/strong\u003e - a \"Best Friend Forever\". When you were a kid you may have learned about the \"buddy\" system, well this product is kinda like that! A board that will watch your QT Py's back and give it more capabilities.\u003c\/p\u003e\n\u003cp\u003eThis PCB is designed to fit onto the back of any QT Py or Xiao board, it can be soldered into place or use pin and socket headers to make it removable. Onboard is a MAX98357 audio amplifier and picoblade-compatible connector for plugigng in a 4 or 8 ohm speaker. We use A0 for the audio data, A1 for wordselect clock, and A2 for bitclock. This pinout will work with ESP32 series, nRF52840 and RP2040 chipset boards. It won't work with the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-qt-py\/pinouts\"\u003eATSAMD21 'original 'QT Py because those pins on the SAMD21 are not I2S capable\u003c\/a\u003e. However, you could cut and rewire the traces to connect to the I2S pads if desired - personally we recommend just upgrading to an RP2040 QT Py instead.\u003c\/p\u003e\n\u003cp\u003eAdafruit include some header that you can solder to your QT Py. \u003ca href=\"https:\/\/www.adafruit.com\/product\/4174\"\u003eYou can also pick up an Itsy Bitsy short female header kit to make it removable but compact\u003c\/a\u003e, you'll just need to trim down the headers to 7 pins long.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComes as an assembled and tested PCB\u003c\/li\u003e\n\u003cli\u003eFor any QT Py or Xiao boards\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-eu\/products\/adafruit-i2s-3w-class-d-amplifier-breakout-max98357a\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eContains a MAX98357 3 Watt audio amplifier\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003epre-configured for 'stereo' mix output and 9 dB gain which will work great for any project.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.adafruit.com\/product\/3922\"\u003eConnect to the speaker output with a picoblade-compatible 2-pin cable\u003c\/a\u003e.\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"\/en-eu\/products\/speaker-4-3w\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eWe recommend this 3W 4 ohm speaker\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eThere are various Arduino \/ CircuitPython \/ MicroPython libraries can be used to talk to the I2S amplifier.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpeaker and QT Py are not included\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\n\u003cp\u003e\u003cimg height=\"80\" width=\"145\" alt=\"RoHS 2 2011 65 EU Compliant\" src=\"https:\/\/www.adafruit.com\/includes\/templates\/shop2019\/images\/RoHS2_2011_65_EU.svg\"\u003e\u003cimg height=\"80\" width=\"145\" alt=\"RoHS 2 2015 863 EU Compliant\" src=\"https:\/\/www.adafruit.com\/includes\/templates\/shop2019\/images\/RoHS2_2015_863_EU.svg\"\u003e\u003c\/p\u003e\n\u003ch2\u003eLearn\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/i2s-amplifier-bff\"\u003ePrimary Guide: Adafruit I2S Amplifier BFF\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":41033041772627,"sku":"ADA5770","price":4.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/5770-00.jpg?v=1694777363","url":"https:\/\/shop.pimoroni.com\/en-eu\/products\/adafruit-i2s-amplifier-bff-add-on-for-qt-py-and-xiao","provider":"Pimoroni Ltd","version":"1.0","type":"link"}