User manual

CY3280-MBR3 Evaluation Kit User Guide, Doc. #: 001-89905 Rev. *B 30
Kit Operation
Figure 3-21. SW3 Slide Switch in Long Trace Position
3. Using the additional 1-mm overlay provided with the kit, as shown in Figure 3-22
a. Power on the kit using USB or an external power supply on pin 4 of the J1 header.
b. Touch BTN1 on the kit. The LED corresponding to BTN1 will turn on, providing visual feed-
back on each touch.
c. Place the additional 1-mm overlay, provided with the kit, on top of the board and press the
reset switch, SW2, to reset the board.
d. Touch BTN1 on the kit; the corresponding LED works normally and provides visual feedback.
This demonstrates the SmartSense Auto-Tuning algorithm, which automatically tunes for the
increase in CapSense button capacitance due to an increase in overlay thickness.