The microcontroller on the MKR Vidor 4000 runs at 3.3V. Applying more than 3.3V on any
pin will damage the board. The VIN pin may be used to power the board but the voltage
supplied must be 5V.
Board layout
This board uses the MKR family form factor and pinout on the standard analog and digital
pins, allowing the usage of shields and accessories designed for the other MKR boards. It
has a host of new features that are available through a set of new components and
connectors as highlighted in the image below.
USB - On top of the board you find a standard microUSB port, directly connected to the
SAMD microcontroller. This port is seen by the host computer as a Virtual Comm Port and
it cn be used to send and receive messages with the usual Serial() function and the
Serial Monitor of the Arduino Software (IDE). On the left side of the USB connector you find
the BUILTIN_LED that is red; on the right side a green LED lits up when power is applied to
the board. This LED won't light up when the board is powered by the LiPo battey.
LiPo Connector - This is the standard JST two poles connector for LiPo batteries. The
Arduino MKR Vidor 4000 is able to run on a 3.3V battery and has been designed to support
capacities of at least 500 mAh. When the board is connected to USB, it will charge
automatically the LiPo battery. Charging time will depend on the battery capacity. The chip