Breadcrumbs
Home | Maker/STEM | Boards/ProjectsAdafruit Industries Neo Trinkey - SAMD21 USB Key with 4 NeoPixels - ATSAMD21E18 32-bit Cortex M0+ Processor 48MHz Clock Rate; 32KB SDRAM; 256KB Flash Memory
Neo Trinkey - SAMD21 USB Key with 4 NeoPixels - ATSAMD21E18 32-bit Cortex M0+ Processor 48MHz Clock Rate; 32KB SDRAM; 256KB Flash Memory
- 48MHz Clock Rate
- 32KB SDRAM
- 256KB Flash Memory
It's half USB Key, half Adafruit Trinket...it's Neo Trinkey, the circuit board with a Trinket M0 heart and four RGB NeoPixels for customizable glow. We were inspired by some USB key flashlight boards that would turn any battery pack into an LED torch. So we thought, hey what if we made something like that but with fully programmable color NeoPixels? And this is what we came up with! The PCB is designed to slip into any USB A port on a computer or laptop. There's an ATSAMD21 microcontroller on board with just enough circuitry to keep it happy. One pin of the microcontroller connects to the four NeoPixel LEDs. Two other pins are used as capacitive touch inputs on the end - if you look carefully you can see the slotted end has left and right touch pads. A reset button lets you enter bootloader mode if necessary. That's it! The SAMD21 can run CircuitPython or Arduino very nicely - with existing NeoPixel and our FreeTouch libraries for the capacitive touch input. Over the USB connection you can have serial, MIDI or HID connectivity. The Neo Trinkey is perfect for simple projects that can use a few user inputs and colorful outputs. Maybe you'll set it up as a simple status notifier, or stretch-break timer, or a macro keypad, or a random color generator, or, hey you could still make it into an LED flashlight if you wanted!
Product Information
General
Mainboards
Warranty
Vendor Warranty:
- Parts: 1 Year
- Labor: 1 Year
Vendor Support:
- Main Website: http://www.adafruit.com/
- Support Website: http://www.adafruit.com/support
Micro Center Return Policy:
We guarantee your satisfaction on every product we sell with a full refund — and you won’t even need a receipt.* We want you to be satisfied with your Micro Center purchase. However, if you need help or need to return an item, we’re here for you!
If an item you have purchased from us is not working as expected, please visit one of our in-store Knowledge Experts for free help, where they can solve your problem or even exchange the item for a product that better suits your needs.
If you need to return an item, simply bring it back to any Micro Center store for a full refund or exchange.
*If you are a Micro Center Insider or if you have provided us with validated contact information (name, address, email address), you won’t even need your receipt.
Accelerate Your Returns with Micro Center's Online Return Check-in!
General Return Policy
Desktop / notebook computers, tablets, processors, motherboards, digital cameras, camcorders and projectors, Cell Phones and Accessories, 3D printers, 3D scanners, and CD/DVD duplicators may be returned within 15 days of purchase. All other products may be returned within 30 days of purchase.
VR Headsets and Earbuds are only eligible for return within 15 days, if deemed defective.
Merchandise must be in new condition, with original carton / UPC, and all packaging / accessories / materials. If you need to return software, a game or a movie, remember that you may not retain any copies — it’s not legal, and it’s not nice.
Bundle Return Policy
Items purchased as part of a bundle are not eligible for individual returns. Only complete, unused bundles may be returned for a refund, subject to our standard return policy guidelines.
Digital Downloads
All Digital Download sales are final and are not eligible for return or refund under the Micro Center Return Policy.
Using the software may require the use of a computer or other device that must meet minimum system requirements. It is recommended that you familiarize yourself with the system requirements before making your purchase. Software system requirements are typically found on the Product information specification page.
Aerial Drones
Micro Center is happy to honor its customary 15-day return policy for Aerial Drone returns due to product defect or customer dissatisfaction.
Unfortunately, we cannot accept returns with damage due to pilot error. So let’s be careful out there!
As of December 21, 2015 all drones, regardless of purchase date, between 0.55 lb (8.82 oz, 250 g, 0.25 kg) and 55 lb take-off weight are required by the FAA to be registered for outdoor use. Details regarding registration can be found at: https://www.faa.gov/uas/getting_started/
Micro Center Support:
Walk-in Tech Support
As a service to our customers, Micro Center offers in store technical support. Stop in any of our store locations during regular business hours, and our expert staff will answer your computer questions or help you with things like:

- Hardware troubleshooting
- Wireless and wired networking
- Software configuration
- Upgrades
- Tips and tricks
Support for Micro Center purchases
If you need help with products purchased from Micro Center, please contact one of our knowledgeable tech support reps using the online chat button below, or visit our Tech Support page for additional options and helpful information.
Chat with Tech Support

Tech Support Hours
- Monday - Friday 9 am to 12 midnight
- Saturday 10 am to 12 midnight
- Sunday 11 am to 9 pm
- Eastern Time
- * excluding posted holiday hours
Free assistance is available for the first 60 days on new purchases, excluding internal hardware installations or networking support. For new PowerSpec computers, this free assistance is extended to one year from the date of purchase. Your invoice reference number will be required for free assistance.
Ask your Support Technician about additional options available through our exclusive Priority Care Program.
Tech Support accepts the following credit cards: VISA; MasterCard; Discover
Support Resources
Vendor Warranty:
- Parts: 1 Year
- Labor: 1 Year
Vendor Support:
- Main Website:
http://www.adafruit.com/ - Support Website:
http://www.adafruit.com/support