Description Arduino MKR WAN 1300

The Arduino MKR WAN 1300 is designed to provide a practical and cost-effective solution for makers looking to add Lo-Ra connectivity to their projects with minimal previous networking experience.
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 another happens automatically.
A good 32-bit computing power comparable 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 to the board (5V).
The Arduino MKR WAN 1300 can operate with or without 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 may damage the board.
Although output to digital 5V devices is possible, bidirectional communication with 5V devices must be properly relocated.