CY3270 PSoC® FirstTouch™ Kit Guide, Document No. 001-15945 Rev. *D
25
Hardware
Figure 4-7. CapSense Slider Schematic
The CY8C21434 PSoC that resides on the FTMF expansion card detects your finger’s position on
the CapSense touch sensing slider and controls the LEDs output. Adopting capacitive sensing as an
interface technology in high-volume, high-visibility applications such as portable media players and
mobile handsets has created demand for the same technology in more conventional consumer elec-
tronics. Its hardware details are shown in the
CSENSE7
CSENSE6
CSENSE5
CSENSE4
CSENSE3
CSENSE2
CSENSE1
CSB3
Cap Sense FTMF
1
2
CS GND
0
6
03
R14
560
0
6
03
R17
560
CSB5
Cap Sense FTMF
1
2
CS GND
CSB2
Cap Sense FTMF
1
2
CS GND
0
6
03
R15
560
0
6
03
R18
560
CSB7
Cap Sense FTMF
1
2
CS GND
CSB4
Cap Sense FTMF
1
2
CS GND
CSB1
Cap Sense FTMF
1
2
CS GND
0
6
03
R13
560
0
6
03
R12
560
0
6
03
R16
560
CSB6
Cap Sense FTMF
1
2
CS GND