Cypress Semiconductor CapSense CY8CKIT-024, Manual, Page: 15 / 29

Kit Hardware
CY8CKIT-024 CapSense
®
Proximity Shield Kit Guide, Doc. No. 001-92568 Rev. *B 15
Figure 2-7: Sensor Pattern
PS1
GND/SHIELD
PROX
PS2
PS4
PS3
2.3.1.1 Proximity Sensors PS1 and PS2
Proximity sensors PS1 and PS2 are provided to detect horizontal gestures, such as hand movements, from left to right or
right to left
. Figure 2-8 shows a left-to-right hand movement.
A gesture is detected based on the sequence in which these sensors detect the presence of a hand. If PS1 detects the
hand before PS2 does, the hand must be moving from left to right. Similarly, if PS2 detects the presence of a hand before
PS1 does, the hand must be moving from right to left. Refer to
AN92239
– Proximity Sensing with CapSense
for more
details on the gesture detection algorithm.
Figure 2-8: Left-to-Right Gesture