{"title":"Adafruit Trinkey QT2040 - RP2040 USB Key with Stemma QT","handle":"adafruit-trinkey","url":"/products/adafruit-trinkey","description":"The Adafruit Trinkey QT2040 is an RP2040-based microcontroller that plugs directly into any USB-A port on your computer or laptop. With a STEMMA QT / Qwiic connector on the end, it turns any I2C sensor or accessory into a plug-and-play USB device — no breadboard or soldering required.\n\nThe board features an RP2040 dual-core Cortex M0+ processor running at ~125 MHz, 264KB RAM, and 8MB of QSPI flash for storing CircuitPython code and files. An RGB NeoPixel, reset button, and bootloader/user button round out the compact design. The main body matches the size and mounting holes of most STEMMA QT boards (1.0\" × 0.7\"), so you can stack a sensor board directly on top.\n\nKey Features\n\n\nUSB-A Plug-In Design – Extra-thick PCB slides directly into any USB-A host port\n\nRP2040 Processor – Dual-core 32-bit Cortex M0+ running at ~125 MHz, 3.3V logic\n\n264KB RAM + 8MB Flash – Plenty of space for CircuitPython code, files, images, and fonts (~7MB usable with Python)\n\nSTEMMA QT / Qwiic Port – Solderless I2C connector compatible with SparkFun Qwiic and hundreds of sensors and accessories\n\nNative USB – USB serial console, MIDI, keyboard/mouse HID, and USB mass storage\n\nCircuitPython & MicroPython – Ships ready for CircuitPython; also supports MicroPython and C/C++ via the Pico SDK\n\nBuilt-in RGB NeoPixel – Programmable status indicator\n\nReset + Boot/User Button – Quick restarts and bootloader entry; boot button also usable in user code\n\n3.3V Regulator – 600mA peak output\n\nStackable Form Factor – 1.0\" × 0.7\" with M2.5 mounting holes matching most STEMMA QT boards\n\n\n\nTip: To enter the UF2 bootloader, hold down the BOOT button while plugging into USB. The board will appear as a USB drive where you can drag and drop new firmware.\n\n\nIdeal For\n\nPlug-and-play USB sensor devices\nCustom USB HID devices (keyboards, macros, MIDI controllers)\nQuick I2C sensor prototyping without a breadboard\nCircuitPython learning and experimentation\nCompact USB dongles and tools\n\n\nPackage Contents\n\n1× Adafruit Trinkey QT2040 (with CircuitPython pre-loaded)\n\n\nResources\n\nWelcome to CircuitPython Guide\nIntroduction to STEMMA QT\nRaspberry Pi Pico C/C++ SDK (GitHub)\nCircuitPython Downloads\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":3117,"title":"Default Title","sku":"AF-5056","price":16.08,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":1,"option1":"Default Title"}]}