Announcing Adafruit Gemma – Miniature wearable electronic platform!

Adafruit 1098
Love Flora but want a bite-sized version? Look no further, Gemma is a tiny wearable platform board with a lot of might in a 1″ diameter package. Powered by a Attiny85 and programmable with an Arduino IDE over USB, you’ll be able to realize any wearable project!

Gemma is still wrapping up development, sign up to get first crack when Gemma is released.

  • Powered by the ATtiny85 with 3 available I/O pins, one of which is also an analog input and two which can do PWM output
  • Progammable over the micro USB connection
  • Onboard 3.3v Regulator and power LED
  • Reset button
  • Works with our Flora NeoPixels (can drive about a dozen – not much RAM!)
  • Super tiny design, only 1″ (25mm) diameter & 4mm thick

Sign up now!

Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.

Join 7,500+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython in 2018 – Python on Microcontrollers is here!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/

Maker Business — Rethink Robotics closes shop. Long live collaborative robots #makerbusiness

Wearables — Zip it up

Electronics — Serial overkill

Biohacking — Biohacking Resources – Books, Talks and Podcasts

Python for Microcontrollers — CircuitPython creates new assistive tech opportunities

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !


  1. This would be perfect for the dog collar project I’ve been working on! I’d love to beta test one if you’re looking for some feedback from a customer using it in an actual project.

  2. Will I be able to use the Gemma to drive some of the other LED strips you have? I’m mostly thinking of driving the 12mm Diffused Flat Digital RGB LED Pixels from this, with a belt pack for power.


  3. Lovely! I see tons of fun coming up. What powersource would you use/recommend to power the Gemma?

    (and is the resistor Turing test opensource?)

  4. I don’t have anything to add to this topic. I just wanted to prove that I’m (still) human.

    Well, actually, I looked at the LED string, and yes, you should be able to drive it using this, and have one pin left for input. Code space is pretty limited, though, only about 6K. If you use the analog input pin for the input, you can use a resistor tree to allow for multiple pushbuttons.

Sorry, the comment form is closed at this time.