Arduino ABX00012 MKR Zero for Sound & Audio Projects I2S 3.3V IoT

The MKR Zero is a board that brings the power and features of the original Zero in the smaller MKR form factor. The board is a great tool for education, allowing you to learn the basics of 32 bit application development, and there is an on-board SD connector with dedicated SPI interfaces that allow you to play music files with no extra hardware.

The heart of the board is the Atmel SAMD21 MCU, featuring a 32-bit ARM Cortex M0+ core. The board has everything needed to support the microcontroller, just connect to a computer using a microusb cable, or power it up using a LiPo battery. Battery voltage can also be monitored since a connection between the battery and the analog converter of the board exists.

There are two libraries available for this board:

Arduino Sound library – a simple way to play and analyse audio data using Arduino on SAM D21-based boards.

I2S library – to use the I2S protocol on SAMD21-based boards. For those who don’t know, I2S (Inter-IC Sound) is an electrical serial bus interface standard for connecting digital audio devices.

* I2S bus & SD for sound, music & digital audio data

* External 5V supply via USB port

* LiPo Battery power (battery not supplied)

* Power consumption <20mA

* On-board SD connector

* 32 bit ARM technology

* 3.3V Operating voltage

* Microusb connector

Caution: The MKR 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.

For further details on getting started, please visit here.