Adafruit Neo Trinkey A Trinket heart and four RGB NeoPixels for glow! by Kattni Rembor published April 10, 2021, last edited July 15, 2025 last major update April 14, 2021 posted in Adafruit Products LEDs CircuitPython Save New Favorite × Please sign in to include this guide in your list of favorites. You will be redirected back to this guide once you sign in, and can then save this guide as one of your favorites. Link Note Download Overview Pinouts What is CircuitPython? CircuitPython Installing the Mu Editor Creating and Editing Code Connecting to the Serial Console Interacting with the Serial Console The REPL CircuitPython Libraries Frequently Asked Questions Troubleshooting "Uninstalling" CircuitPython Welcome to the Community! CircuitPython Essentials NeoPixel Blink Capacitive Touch NeoPixel Brightness Capacitive Touch HID Arduino IDE Setup Using with Arduino IDE Adapting Sketches to M0 & M4 Arduino Examples Downloads Single page Feedback? Corrections? Text View Primary Products Adafruit Neo Trinkey - SAMD21 USB Key with 4 NeoPixels $6.95 Add to Cart 36 Beginner Product guide 😍 1 Downloads Files: ATSAMD21 Datasheet Webpage for the ATSAMD21E18 (main chip used) EagleCAD PCB files on GitHub 3D Models on GitHub Fritzing object in the Adafruit Fritzing Library PrettyPins PDF on GitHub PrettyPins SVG on GitHub Schematic Fab Print Page last edited July 15, 2025 Text editor powered by tinymce. Arduino Examples