Arduino® Board MKR Zero (I2S Bus & SD for Sound, Music & Digital Audio Data)
Arduino® Board MKR Zero (I2S Bus & SD for Sound, Music & Digital Audio Data)
I2S bus & SD!
MKR ZERO has a built-in SD card slot with dedicated SPI interfaces (SPI1), allowing you to play with music files without any additional hardware! For those who don't know, I2S (Inter-IC Sound) is an electrical serial bus interface standard for connecting digital audio devices.
Attention musicians: we have some news for you! We've released two libraries for you:
- Arduino Sound Library - an easy way to play and analyze audio data with Arduino on SAM D21 based boards.
- I2S library - for using the I2S protocol on SAMD21-based boards.
Arduino® MKR Zero
The MKR ZERO gives you the power of an Arduino Zero in a smaller package, defined by the MKR form factor. The MKR ZERO board is a great educational tool for learning about 32-bit application development. It features a built-in SD card connector with dedicated SPI interfaces (SPI1), allowing you to play with music files without any additional hardware! The board is powered by Atmel's SAMD21 MCU with a 32-bit ARM Cortex® M0+ core.
Technical 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 | 8 (0, 1, 4, 5, 6, 7, 8, A1 -or 16-, A2 - or 17) |
| 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 |
| Full-speed USB device and embedded host |
Details about Arduino® Board MKR Zero (I2S Bus & SD for Sound, Music & Digital Audio Data)
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