Infineon EVAL PMG1 S3 DUALDR User Manual page 27

EVAL_PMG1_S3_DUALDRP Evaluation Kit user guide
EVAL_PMG1_S3_DUALDRP kit system design
See the Getting started with CAPSENSE™
PSoC™ 6 MCU CAPSENSE™ design guide
Each CAPSENSE™ sensor has an associated LED to indicate the status of the sensor. For the CAPSENSE™ button,
the LED corresponding to the button turns ON when the button detects a touch. In the CAPSENSE™ slider, the
LED corresponding to the sensor on which a finger is placed during a sliding action turns ON. The following
table lists the CAPSENSE™ button, LEDs, and corresponding GPIOs.
CAPSENSE™ buttons and slider
CAPSENSE™ widget
CAPSENSE™ button
CAPSENSE™ slider
CAPSENSE™ also requires an external capacitor, CMOD for self-capacitance sensing. CAPSENSE™ sensor pads
are connected to the EZ-PD™ PMG1-S3 MCU through 560 Ω series resistors placed close to the MCU GPIOs that
are configured as CAPSENSE™ sensor pins. The CAPSENSE™ sensors on the kit are covered with a transparent
overlay (insulator material) which serves as the touch surface for the sensor below it. The sensor pads are
surrounded by shield electrodes and provide optional provisions for active driven shields or ground shields to
provide liquid tolerance and proximity sensing support. By default, both top and bottom shields are active
driven. The shields can be connected to ground by populating the ground resistors and removing the shield
connections. It is recommended to connect the CTANK capacitor for enabling the drive-in-shield feature.
Figure 17 CAPSENSE™ shield, mod, and tank capacitor
User guide
for a detailed introduction to CAPSENSE™ and see the
for CAPSENSE™ design guidelines.
CAPSENSE™ Sensor GPIO
sensor
CSB0 P7.5
CSB1 P7.6
SLD0 P7.0
SLD1 P7.1
SLD2 P7.2
SLD3 P7.3
SLD4 P7.4
LED
LED11
LED12
LED6
LED7
LED8
LED9
LED10
27
PSoC™ 4 and
LED GPIO
P5.4
P5.5
P1.0
P1.3
P1.4
P2.5
P2.7
002-38187 Rev. *B
2024-09-23