Official ARDUINO MKR ZERO
- үнэ: 120,000 төг
ARDUINO MKR ZERO (I2S BUS & SD FOR SOUND, MUSIC & DIGITAL AUDIO DATA)
Product can be purchased in multiples of 50 units (1 inner pack)
MKR ZERO has an on-board SD connector with dedicated SPI interfaces (SPI1) that allows you to play with MUSIC files with no extra hardware!
Watch out music makers, we’ve got some news for you! We have released two libraries for your enjoyment:
- - Arduino Sound library – a simple way to play and analyze 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.
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.
Warning: Unlike most Arduino & Genuino boards, the MKRZero 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.
The board contains everything needed to support the microcontroller; simply connect it to a computer with a micro-USB cable or power it by a LiPo battery. The battery voltage can also be monitored since a connection between the battery and the analog converter of the board exists.
In the Getting Started section, you can find all the information you need to configure your board, use the Arduino Software (IDE), and start to tinker with coding and electronics.
- – On the Software on the Arduino Forum
- – On Projects on the Arduino Forum
- – On the Product itself through our Customer Support
|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)|
|Analog Input Pins||7 (ADC 8/10/12 bit)|
|Analog Output Pins||1 (DAC 10 bit)|
|External Interrupts||9 (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|
|Clock Speed||32.768 kHz (RTC), 48 MHz|
|Full-Speed USB Device and embedded Host|
The MKR ZERO is open-source hardware! You can build your own board using the following files:
The on- board SD connector allows you to play with files without adding any extra hardware to the board. Furthermore SD card is driven by a dedicated SPI interface (SPI1) and so any of the pins of the header is busy during SD usage. The SD library automatically recognizes the MKR ZERO and so any modification to the sketch is needed to use it aprat from choosing the right SS pin (SDCARD_SS_PIN).
Li-Po batteries are charged up to 4,2V with a current that is usually half of the nominal capacity (C/2). For Arduino MKR ZERO we use a specialized chip that has a preset charging current of 350mAh. This means that the MINIMUM capacity of the Li-Po battery should be 700 mAh. Smaller cells will be damaged by this current and may overheat, develop internal gasses and explode, setting on fire the surroundings. We strongly recommend that you select a Li-Po battery of at least 700mAh capacity. A bigger cell will take more time to charge, but won’t be harmed or overheated. The chip is programmed with 4 hours of charging time, then it goes into automatic sleep mode. This will limit the amount of charge to max 1400 mAh per charging round.
If you want to connect a battery to your MKRZero be sure to search one with female 2 pin JST PHR2 Type connector. Polarity : looking at the board connector pins, polarity is Left = Positive, Right = GND Connector datasheet On the MKRZero, connector is a Male 2pin JST PH Type
The MKR Zero has an additional connector meant as an extension of the I2C bus. It’s a small form factor 5-pin connector with 1.0mm pitch. The mechanical details of the connector can be found in the connector datasheet. The I2C port in addition to the SDA and SCL signals includes the GND and +5V power rails and a digital pin that might be useful when designing an expansion. The pinout is shown in the following image:
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