ARDUINO MKR WAN 1300 (LORA
CONNECTIVITY)
Code: ABX00017
MKR WAN 1300 is a powerful board that combines the functionality of the MKR
Zero and LoRa connectivity. It is the ideal solution for makers wanting to design
IoT projects with minimal previous experience in networking having a low power
device.
Arduino MKR WAN 1300 has been designed to offer a practical and cost effective solution for makers
seeking to add Lo-Ra connectivity to their projects with minimal previous experience in networking. It is
based on the Atmel SAMD21 and a Murata CMWX1ZZABZ Lo-Ra module.
The design includes the ability to power the board using two 1.5V AA or AAA batteries or external 5V.
Switching from one source to the other is done automatically. A good 32 bit computational power similar
to the MKR ZERO board, the usual rich set of I/O interfaces, low power Lo-Ra communication and the
ease of use of the Arduino Software (IDE) for code development and programming. All these features
make this board the preferred choice for the emerging IoT battery-powered projects in a compact form
factor. The USB port can be used to supply power (5V) to the board. The Arduino MKR WAN 1300 is able
to run with or without the batteries connected and has limited power consumption.
Warning: Unlike most Arduino & Genuino boards, the MKR WAN 1300 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. While output to 5V digital devices is possible, bidirectional
communication with 5V devices needs proper level shifting
TECH SPECS
Microcontroller SAMD21 Cortex-M0+ 32bit low power ARM MCU
Board Power Supply (USB/VIN) 5V
Supported Batteries(*) 2x AA or AAA
Circuit Operating Voltage 3.3V
Digital I/O Pins 8
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
SRAM 32 KB
EEPROM no
Clock Speed 32.768 kHz (RTC), 48 MHz
LED_BUILTIN 6
Full-Speed USB Device and embedded Host
Antenna power 2dB
Carrier frequency 433/868/915 MHz
Working region EU/US
Length 67.64 mm
Width 25 mm
Weight 32 gr.
OSH: Schematics
The MKR WAN 1300 is open-source hardware! You can build your own board using the following files:
EAGLE FILES IN .ZIPSCHEMATICS IN .PDFFRITZING IN .FZPZ
Pinout
Download the pinout in PNG format
Antenna
The MKR WAN 1300 has to be used with GSM antenna that can be attached to the board with the micro
UFL connector.
Please check that it can accept frequencies in the LoRa's range (433/868/915 MHz).
Please note: for best result, do not attach the antenna to a metallic surface like car chassis, etc.
Batteries, Pins and board LEDs
Battery capacity: The connected batteries must have a nominal voltage of 1.5V
Battery connector: If you want to connect a battery pack (2x AA or AAA) to your MKR WAN 1300 use the
screw terminal block.
Polarity : as reported on the silk in the bottom of the board, positive pin is the closest to the USB
connector
Vin: This pin can be used to power the board with a regulated 5V source. If the power is fed through this
pin, the USB power source is disconnected. This is the only way you can supply 5v (range is 5V to
maximum 6V) to the board not using USB. This pin is an INPUT.
5V: This pin outputs 5V from the the board when powered from the USB connector or from the VIN pin of
the board. It is unregulated and the voltage is taken directly from the inputs.
VCC: This pin outputs 3.3V through the on-board voltage regulator. This voltage is 3.3V if USB or VIN is
used and equal to the series of the two batteries when they are used
LED ON: This LED is connected to the 5V input from either USB or VIN. It is not connected to the battery
power. This means that it lits up when power is from USB or VIN, but stays off when the board is running
on battery power. This maximizes the usage of the energy stored in the battery. It is therefore normal to
have the board properly running on battery power without the LED ON being lit.
Onboard LED: On MKR WAN 1300 the onboard LED is connected to D6 and not D13 as on the other
boards. Blink example or other sketcthes that uses pin 13 for on board LED may need to be changed to
work properly.
