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Official Arduino MKR Zero Developmemt Board - ABX00012
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The Official Arduino MKR Zero Development Board combines the powerful features of the Arduino Zero with the compact and versatile MKR form factor, making it ideal for creative and educational projects alike.
Designed around Atmel’s SAMD21 microcontroller, it features a 32-bit ARM Cortex M0+ core that enables efficient and robust 32-bit application development. This Arduino board is especially useful as a learning tool for developers exploring the world of modern embedded systems.
One of its standout features is the onboard SD card connector with a dedicated SPI1 interface, allowing users to play and manage music files without the need for additional hardware.
The MKR Zero development board is powered via micro-USB or a LiPo battery, offering flexibility in power management, and includes a built-in battery monitoring feature through an analog connection, adding further convenience for portable projects.
NOTE: Unlike most Arduino and Genuino boards, the MKRZero operates at 3.3V. The highest voltage that the I/O pins can withstand is 3.3V. Applying voltages greater than 3.3V to any I/O pin may destroy the board.

| Specification | Details |
|---|---|
| Item Type | MKR Series Board |
| Model Type | MKR Zero |
| Model Number | ABX00012 |
| Input Voltage | 5 V |
| Operating Voltage | 3.3 V |
| Clock Speed | 48 MHz |
| Microcontroller | SAMD21 (Arm® Cortex®-M0+) |
| Flash Memory | 256 KB |
| SRAM | 32 KB |
| Digital I/O Pins | 22 |
| PWM Digital I/O Pins | 12 |
| Analog Input Pins | 7 |
| Analog Output Pins | 1 (via DAC) |
| Communication Interfaces | I2C, SPI, UART, CAN |
| Audio Output | Yes, via built-in DAC |
| Storage Expansion | MicroSD card slot |
| Power Supply Options | USB or LiPo battery (via JST) |
| Max DC Current on 3.3V Pin | 600 mA |
The MKR ZERO is open-source hardware! You can build your own board using the following files:
For the full technical documentation, tutorials and much more, visit Arduino Docs
This product comes with a 1-year manufacturer warranty from the date of purchase, covering manufacturing defects only.
The product shows signs of physical damage, mishandling, exposure to water/moisture, fire, natural calamities, unauthorized repairs, improper storage near heat or direct sunlight, or alteration in any way.