Adafruit NeoKey Trinkey USB NeoPixel Mechanical Key Switch

The Adafruit NeoKey Trinkey is a unique device combining a mechanical key switch compatible with Cherry MX, a NeoPixel RGB LED, and a compact USB development board powered by the ATSAMD21E18 32-bit Cortex M0+ processor.

This tiny, durable board plugs directly into any USB A port on a computer or laptop, featuring a native USB interface supporting Arduino or CircuitPython programming. The NeoKey Trinkey includes a single reverse-mount RGB NeoPixel LED that allows full-color customization, and a capacitive touch pad for additional input options.

The device is perfect for creating custom macros, password entry keys, or as an Escape key replacement, and supports serial, MIDI, or HID connectivity over USB. It comes with a reset button to enter bootloader mode or restart the device.

Note: This board does not come with a pre-soldered mechanical key switch or keycap. It requires the user to purchase and solder their Cherry MX-compatible mechanical key switch.

• ATSAMD21E18 32-bit Cortex M0+ 48 MHz processor with 256KB Flash and 32KB RAM
• Native USB support across all major operating systems
• Compatible with Arduino IDE and CircuitPython
• Single reverse-mounted RGB NeoPixel LED
• Capacitive touch pad input
• Cherry MX-compatible footprint for mechanical switches (center nub compatible only)
• Reset button for bootloader and restart
• Compact dimensions: 32.0mm x 16.4mm x 3.3mm
• Lightweight at 2.1 grams
• Ideal for macro pads and custom keyboard projects

The NeoKey Trinkey is a small, versatile, and affordable development board suitable for beginners and advanced users alike, combining mechanical key functionality with programmable LED and USB control.