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Adafruit Gemma

By Jordan Bunker / Jan 2, 2016

Adafruit Gemma

You might think of the Gemma as a “lite” version of the Flora. It has just 3 digital I/O pads, but at 1.1″ in diameter, it’s incredibly tiny. Like the Flora, it has an onboard battery connector, and is programmable via the Arduino IDE. While it may seem that its minimal I/O count limits its potential, many projects don’t require lots of I/O pins, making the Adafruit Gemma the ideal choice for simple wearables designs.

 

Specs
Adafruit Gemma http://adafruit.com
Type:Microcontroller
Price:$10
Make: Recommendation:Wearables
Software:Arduino
Clock Speed:8 MHz
Processor:8-bit ATtiny85
I/O Pins Digital:3 (2 PWM)
I/O Pins Analog:1
WiFi?:No
Video?:No
Bluetooth?:No
Ethernet?:No
Operating Voltage:3.7-5V
Dimensions:1-inch
Memory:8KB flash

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Why To Buy

The Gemma is perfect for simple wearables projects.  It is a great entry level board to get you started in the world of wearables.

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