SparkFun SAMD21 Development Breakout

If you are ready to step up your Arduino game from older 8-bit/16MHz microcontrollers the SparkFun SAMD21 Dev Breakout is the perfect landing spot. Built around the powerful Atmel ATSAMD21G18 this board gives you the 32-bit ARM Cortex-M0+ performance of an Arduino Zero but in a feature-rich package designed by your friends here at SparkFun!More Speed More SpaceThe SAMD21 resolves the storage limits and dynamic memory stack overflows that often plague complex projects on standard Arduinos.Fast & Spacious: Running at 48MHz with 256KB of Flash and 32KB of SRAM this chip handles complex calculations and large libraries with ease.Zero Compatibility: Because it uses the same processor as the Arduino Zero it is fully supported by the Arduino IDE and compatible libraries right out of the box.Power Flexibility & LiPo ChargingWe used the extra PCB space to pack in features that make mobile projects easier. This breakout includes a 600mA 3.3V regulator and a dedicated LiPo battery connector with a built-in charger. You can also power your project via USB and if it's unplugged the board seamlessly switches to battery power!Where's the Barrel Jack? The SAMD21 Dev Breakout includes a footprint for a DC barrel jack but please note that the jack is not populated. You will need to purchase and solder one yourself if you require power from a wall adapter.Unlock the SERCOMOne of the SAMD21's most distinctive features is SERCOM a set of six configurable serial interfaces. Unlike the fixed hardware UART/I2C/SPI pins on older boards these interfaces can be multiplexed. This means you can turn a pin into a UART I2C controller/peripheral or SPI controller/peripheral depending on your project's requirements providing significant routing flexibility.