User's Manual

WE-2100T Series User’s Manual Getting Started
3-3
Circuit Pad for External Connection
The circuit pad located on the left side of the evaluation boards is used to develop additional
application circuits. The circuit pad is circled in red in the figure below. As shown in the second
figure, the bottom row of the circuit pad is for connecting a 5V power supply, whereas the upper
row is for connecting a 3.3V power supply. There are totally 9 digital I/O pins on the right side.
The top row of the circuit pad is for grounding.