Note: Arduino Zero and the Genuino Zero are the same boards.

Description:  The Zero is a simple and powerful 32-bit extension of the platform established by the UNO. The Zero board expands the family by providing increased performance, enabling a variety of project opportunities for devices, and acts as a great educational tool for learning about 32-bit application development. the Zero applications span from smart IoT devices, wearable technology, high-tech automation, to crazy robotics. The board is powered by Atmel’s SAMD21 MCU, which features a 32-bit ARM Cortex® M0+ core. One of its most important features is Atmel’s Embedded Debugger (EDBG), which provides a full debug interface without the need for additional hardware, significantly increasing the ease-of-use for software debugging. EDBG also supports a virtual COM port that can be used for device and bootloader programming.

Warning: Unlike most Arduino & Genuino boards, the Zero runs at 3.3V. The maximum voltage that the I/O pins can tolerate is 3.3V. Applying voltages higher than 3.3V to any I/O pin could damage the board.

The board contains everything needed to support the microcontroller; simply connect it to a computer with a micro-USB cable or power it with a AC-to-DC adapter or battery to get started. The Zero is compatible with all the shields that work at 3.3V and are compliant with the 1.0 Arduino pinout.

Note

In contrast to some Arduino & Genuino boards (e.g. Uno), when you open the serial monitor and the board is connected through the Programming Port the board does not automatically reset. You can reset the board manually if you wish to restart your sketch, for example in order to see something that is printed in the setup() function.

Getting Started

In the Getting Started section, you can find all the information you need to configure your board, use the Arduino Software (IDE), and start to tinker with coding and electronics.

Get Inspired

• Try out the low power characteristics of the Zero.
• Play a wave file stored on the SD card using the new Audio library and the 10 bit DAC.
• Learn how to use the RTC library methods.
• Discover some more Arduino and Genuino Zero projects featured from Arduino Project Hub, our tutorial platform.

Need Help?

• On the Software on the Arduino Forum
• On Projects on the Arduino Forum 

Technical specs

• Microcontroller ATSAMD21G18, 32-Bit ARM Cortex M0+
• Operating Voltage 3.3V
• Digital I/O Pins 20
• PWM Pins All but pins 2 and 7
• UART 2 (Native and Programming)
• Analog Input Pins 6, 12-bit ADC channels
• Analog Output Pins 1, 10-bit DAC
• External Interrupts All pins except pin 4
• DC Current per I/O Pin 7 mA
• Flash Memory 256 KB
• SRAM 32 KB
• EEPROM None. See documentation
• Clock Speed 48 MHz

Documents:

• Schematic
• Eagle Files
• Board Size