Arduino MKR Zero

The Arduino MKR Zero is a arduino + microcontroller component used by makers, students and engineers for electronics and embedded-systems projects.

Specifications

• Board: Arduino MKR Zero (ABX00012)
• Microcontroller: Microchip SAMD21 Cortex-M0+ 32-bit ARM (48 MHz)
• Flash Memory: 256 KB
• SRAM: 32 KB
• Operating Voltage: 3.3 V
• Digital I/O Pins: 22 (12 PWM capable)
• Analog Input Pins: 7 (8/10/12-bit ADC)
• Analog Output Pins: 1 (10-bit DAC)
• Audio Interface: I2S bus for digital audio input/output
• Storage: Built-in micro SD card slot (SPI interface)

Why Choose Arduino MKR Zero?

100% Authentic

GST Invoice - A GST invoice is included with every order.

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Pan-India Delivery - Shipped across Bengaluru, Delhi NCR, Hyderabad and all of India.

Trusted by Makers - Used by students, hobbyists and professionals nationwide.

Key Features of Arduino MKR Zero

• I2S Audio Bus: Dedicated Inter-IC Sound interface enables high-fidelity digital audio output to DACs, amplifiers, and speakers - perfect for music players and sound projects.
• Built-in Micro SD Card Slot: Read and write WAV files, log sensor data, or store configuration files without any external breakout boards.
• 32-Bit SAMD21 Processor: 48 MHz ARM Cortex-M0+ delivers significantly more processing power than 8-bit Arduino boards, ideal for real-time audio and complex algorithms.
• Li-Po Battery Ready: On-board JST connector and integrated charging circuit let you build truly portable, battery-powered projects right out of the box.
• Native USB: Appears as a serial/CDC device natively - no external USB-to-serial chip needed. Also supports HID (keyboard/mouse emulation).
• 10-Bit DAC Output: True analog output for generating audio waveforms, control voltages, or smooth signal outputs without PWM filtering.
• Compact MKR Form Factor: Breadboard-friendly 25 mm width with full compatibility across the MKR shield ecosystem (WiFi, GSM, ENV, Relay, etc.).
• 3.3 V Logic: Directly compatible with modern sensors, displays, and communication modules without level shifting.
• The only MKR board with a built-in SD card slot and I2S audio bus, making it the go-to choice for audio and data-logging applications.
• Powerful 32-bit ARM processor at an accessible price point - a major upgrade from Uno-class boards.
• Integrated battery management makes portable and wearable projects simple without additional circuitry.
• Full Arduino IDE and Arduino Cloud compatibility with extensive library support including the Arduino Sound library.

Perfect For

• Portable WAV Music Player: Load WAV files onto a micro SD card and play them through an I2S DAC and speaker - build your own custom audio player with track controls and an OLED display.
• Interactive Sound Installation: Trigger different audio samples based on proximity sensors, touch inputs, or motion detectors for art exhibits, museums, or escape rooms.
• Environmental Data Logger: Pair with MKR ENV Shield to record temperature, humidity, pressure, and UV data directly to the SD card for field research and weather stations.
• Digital Audio

Arduino MKR Zero - Music-Enabled SAMD21 Development Board

Build audio-rich, data-logging, and IoT projects with the Arduino MKR Zero. Powered by the 32-bit SAMD21 Cortex-M0+ processor and featuring a built-in SD card slot with I2S bus interface for high-quality audio playback, this compact board is the ideal foundation for music players, sound installations, and portable data-driven applications. Available now at Tech Depot India, Bengaluru, with fast shipping and full technical support.

Frequently Asked Questions

Customer Support

Email: techdepotindia@gmail.com

WhatsApp: Available for setup and troubleshooting help

Order your Arduino MKR Zero today and start building your next project.

Buy Arduino MKR Zero Online in India

Related: Browse more from our Arduino collection, or see all products at Tech Depot India.