Arduino Zero

The Arduino Zero is a 32-bit extension of the platform, similar to the UNO, but with improved performance. This board enables a wide range of projects, from smart IoT devices and wearable technology to advanced automation and robotics. It is powered by Atmel 's SAMD21 MCU with a 32-bit ARM® Cortex® M0+ core.

A key feature of the Zero is Atmel 's Embedded Debugger (EDBG), which provides a full debug interface without additional hardware, greatly simplifying software debugging. The EDBG also supports a virtual COM port for device and bootloader programming.

It is important to know that the Zero works on 3.3V, unlike most Arduino boards that work on 5V. The I/O pins can handle a maximum of 3.3V, and higher voltages can damage the board.

The Zero is compatible with all shields that operate at 3.3V and meet the 1.0 Arduino pinout. The board can easily be connected to a computer via a micro- USB cable, or powered via an AC-to-DC adapter or battery.

A unique aspect of the Zero is that, unlike AVR -based Arduino boards, it does not automatically reset when the Arduino Software's Serial Monitor (IDE) is opened. To restart the sketch, you must manually press the reset button on the board.