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Trinkey QT2040 - RP2040 USB Key with Stemma QT

SKU 4093
£7.99 inc VAT
£6.66 ex VAT
5 in stock.

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!

  • 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