Trinkey QT2040 - RP2040 USB Key with Stemma QT

DESCRIPTION

This plug-and-play PCB is designed to slip into any USB A port on a computer or laptop. There's an RP2040 microcontroller on board with just enough circuitry to keep it happy. There's an RGB NeoPixel, a reset and bootloader or user button and a STEMMA QT Port on the end, and 8 MB of QSPI flash memory so you can put all of the CircuitPython drivers on the disk!

With the body of the board being 1.0" x 0.7" and four mounting holes, you can attach just about any QT boards right on (some are a little larger so just check that has the holes in the same locations). Use M2.5 sized standoffs and screws to do so, you could use 2 diagonal at a minimum. Then use a shorty QT cable and you've got a custom sensor Trinkey for any sensor purpose.

This board is STEMMA QT compatible, so you can use I2C sensors and accessories wihout the need for soldering!

FEATURES

• USB Type A connector with extra-thick PCB to fit into a USB host port
• RP2040 32-bit Cortex M0+ dual-core running at ~125 MHz @ 3.3V logic and power
• 264 KB RAM
• 8 MB SPI FLASH chip for storing files and CircuitPython/MicroPython code storage. No EEPROM
• Native USB supported by every OS - can be used STEMMA QT / Qwiic port for I2C connectivity as USB serial console, MIDI, Keyboard/Mouse HID, even a little disk drive for storing Python scripts.
• Can be used with MicroPython or CircuitPython
• Built-in RGB NeoPixel LED
• STEMMA QT / Qwiic port for I2C connectivity
• 3.3V regulator with 600mA peak output
• 12 MHz crystal
• Both Reset button and Bootloader select buttons for quick restarts (no unplugging-replugging to relaunch code)
• Bootloader button can also be safely used in 'user' code

RESOURCES

• CircuitPython get started guide
• C/C++ Support
• MicroPython Support
• CircuitPython Port