Adafruit Trinkey QT2040 - RP2040 USB Key with Stemma QT

The Adafruit Trinkey QT2040 is a compact and powerful development board featuring the RP2040 microcontroller and a plug-and-play Stemma QT connector for seamless sensor and accessory integration.

This innovative USB Type A stick-sized board is half USB Key, half Adafruit QT Py, expertly designed to slip into any USB A port on a computer or laptop. It boasts an RP2040 dual-core Cortex M0+ running at ~125 MHz, 264 KB RAM, and an 8 MB SPI Flash chip for code and file storage.

Features include a built-in RGB NeoPixel, reset and bootloader/user buttons, and a STEMMA QT / Qwiic port for easy I2C connectivity without soldering. Its extra-thick PCB ensures durability and compatibility with USB host ports. The board is ideal for Arduino or CircuitPython programming, offering native USB support for serial console, MIDI, Keyboard/Mouse HID, and USB drive functionalities.

Key Features:

• USB Type A connector with thick PCB for USB host port compatibility
• RP2040 dual-core 32-bit Cortex M0+ processor running at ~125 MHz
• 264 KB RAM and 8 MB SPI Flash for code and file storage
• Built-in RGB NeoPixel LED
• STEMMA QT / Qwiic port for plug-and-play I2C sensor connectivity
• Reset and bootloader buttons for easy programming and control
• 3.3V regulator with 600mA peak output
• Compatible with Arduino IDE and CircuitPython

Specifications:

• Dimensions: 38.2mm x 17.7mm x 5.5mm (1.5" x 0.7" x 0.2")
• Weight: 3.0g
• Processor: RP2040 dual-core Cortex M0+ 32-bit
• Flash Memory: 8 MB SPI Flash
• RAM: 264 KB
• Power: 3.3V logic, 600mA peak 3.3V regulator output
• Connectivity: USB Type A, STEMMA QT I2C port

This board is well-suited for embedded projects that require a small footprint USB device with sensor connectivity, programmable in popular environments like CircuitPython and Arduino IDE. Perfect for makers and developers looking for a compact and versatile RP2040 USB microcontroller.