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CY3270 PSoC® FirstTouch™ Kit Guide, Document No. 001-15945 Rev. *D
Kit Operation
Figure 3-2. FTMF Expansion Card
3.2.1
CapSense Touch Sensing Demonstration (Default)
The pre-programmed CapSense touch sensing demonstration shows how to use the CapSense
touch sensing slider at the end of the board to control LED color. Run your finger across the
CapSense touch sensing slider and notice how the color of the LED changes. The CY8C21434
PSoC that resides on the FTMF expansion card detects your finger’s position on the CapSense
touch sensing slider and controls the LED’s output.
3.2.2
Temperature Sensing Demonstration
The temperature sensing demonstration shows how to use a temperature sensor to control LED
color. Touch the temperature sensor and notice how the LED color changes. Removing your finger
leads to the LED color slowly reverting back to its initial state. PSoC detects the temperature and
controls the LED’s output.
3.2.3
Light Sensing Demonstration
The light sensing demonstration shows how to use an ambient light sensor to control LED intensity.
Cover the light sensor with the palm of your hand and notice how the intensity of the LED changes.
Removing your palm leads to the LED intensity reverting back to its initial state. PSoC detects the
ambient light and controls the LED’s output.
3.2.4
CapSense Proximity Sensing Demonstration
The CapSense proximity sensing demonstration shows how to use a proximity sensor to control
LED color. The proximity detector requires a proximity antenna and can sense an object with approx-
imately 2 to 3 inches of range. In the FirstTouch Kit, this sense antenna is formed by attaching the
provided wire into the pin socket labeled PRX1 as shown in
.
Note how the shape and position of the wire affects the demonstration operation and the proximity
sensing distance. Approach the CapSense proximity sensor slowly with your fingers and notice how
the color of the LED changes. Removing your fingers leads to the LED color slowly reverting back to
its initial state. The CY8C21434 PSoC that resides on the FTMF expansion card detects the relative
proximity of your fingers to the FTMF expansion card and controls the LED’s output.