Applying voltages higher than 3.3V to any I/O pin could damage the board. The maximum voltage that the I/O pins can tolerate is 3.3V. Warning: Unlike most Arduino boards, the Zero runs at 3.3V. EDBG also supports a virtual COM port that can be used for device and bootloader programming. 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.
The board is powered by Atmel’s SAMD21 MCU, which features a 32-bitĪRM® Cortex® M0+ core. The Zero applications span from smart IoT devices, wearable technology, high-tech automation, to crazy robotics. 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 is a simple and powerful 32-bit extension of the platform established by the UNO.
