ARDUINO MKR ZERO (I2S BUS AND SD FOR SOUND, MUSIC AND DIGITAL AUDIO DATA), ARDUINO ABX00012

The MKR ZERO brings you the power of a Zero in the smaller format established by the MKR form factor. The MKR ZERO board acts as a great educational tool for learning about 32-bit application development. It has an on-board SD connector with dedicated SPI interfaces (SPI1) that allows you to play with MUSIC files with no extra hardware!  The board is powered by Atmel’s SAMD21 MCU, which features a 32-bit ARM Cortex® M0+ core.

Tehnical specifications
Microcontroller: SAMD21 Cortex-M0+ 32bit low power ARM MCU
Board Power Supply (USB/VIN): 5V
Supported Battery: Li-Po single cell, 3.7V, 700mAh minimum
DC Current for 3.3V Pin: 600mA
DC Current for 5V Pin: 600mA
Circuit Operating Voltage: 3.3V
Digital I/O Pins: 22
PWM Pins: 12 (0, 1, 2, 3, 4, 5, 6, 7, 8, 10, A3 - or 18 -, A4 -or 19)
UART: 1
SPI: 1
I2C: 1
Analog Input Pins: 7 (ADC 8/10/12 bit)
Analog Output Pins: 1 (DAC 10 bit)
External Interrupts: 10 (0, 1, 4, 5, 6, 7, 8, 9, 16 / A1, 17 / A2)
DC Current per I/O Pin: 7 mA
Flash Memory: 256 KB
Flash Memory for Bootloader: 8 KB
SRAM: 32 KB
EEPROM: no
Clock Speed: 32.768 kHz (RTC), 48 MHz
LED_BUILTIN: 32
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