Product Data Sheet
Arduino MKR WAN 1310
1 Description
The MKR WAN 1310 is a miniature sized module containing a Cortex M0+ SAMD21 processor, the
Murata CMWX1ZZABZ LoRa® module, a crypto chip (the ECC508), and a 2MByte SPI Flash. The module
can either be mounted as a DIP component throughout the already mounted headers.
Like most Arduino MKR form factor boards the MKR WAN 1310 can be powered via USB, via headers or
connecting a Lithium or Lithium Polymer battery to the embedded battery charger (the BQ24195L).
2 Functional Overview
2.1 Main Processor
Main Processor is a Cortex M0+ running at up to 48MHz. Most of its pins are connected to the external
headers, however some are reserved for internal communication to the communication module and to
the internalSPI and I
2
C peripherals (SPI Flash memory and Crypto).
Communication with Murata CMWX1ZZABZ happens through a I2C and a SPI through the following pins.
Note
Arduino MKR WAN 1310 battery charger has a minimum of 512mA charge current. please ensure this
charging current is compatible with the battery you will be using.
Note
Arduino MKR WAN 1310 only supports 3.3V I/Os and is NOT 5V tolerant so please make sure you are
not directly connecting 5V signals to this board, or it will be damaged. Also the 5V pin does NOT
supply voltage but is rather connected, through a jumper, to the USB power input.
SAMD21
Pin
SAMD21
Acronym
NINA
Pin
CMWX1ZZABZ
Acronym
Description
39
PA27
34
MCU_NRST
Reset
41
PA28
22
GPIO0
IRQ pin
8
PB09
43
boot_0
Boot
23
PA14
17
GPIO5
SPI CS
22
PA13
16
GPIO18
SPI CLK
24
PA15
15
GPIO21
SPI MISO
21
PA12
14
GPIO12
SPI MOSI
14
PA08
36
PB9/SDA1
I2C SDA
13
PA09
35
PB8/SCL1
I2C SCL
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Arduino MKR WAN 1310 - 12/23/2020