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

4

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Arduino MKR WAN 1310 - 12/23/2020