Power Supply

The ATWINC1500 has an operating voltage from 3.0 to 4.2V. As the Xplained Mini board has a supply voltage of 5V, it is important that the voltage is changed to the more appropriate 3.3V before we connect the ATWINC1500 Xplained Pro to the board.

The figure below shows the 3.3V power supply schematics.
Figure 1. Xplained Mini Power Supply 3.3V
To modify the Xplained Mini's supply voltage from 5 to 3.3V, remove the 0Ω resistor R301 and add a 0Ω resistor R302. These resistors are located near the USB connector on the board, and are marked in the figure below.
Figure 2. Xplained Mini Board with Power Supply Resistors