CY3270 Cypress Semiconductor Corp, CY3270 Datasheet - Page 12

• Manufacturer Part Number: CY3270
• Description: KIT PSOC FIRST TOUCH
• Manufacturer: Cypress Semiconductor Corp
• Series: PSoC® FirstTouch™r
• Type: MCUr

Specifications of CY3270

• Contents: USB FTPC Bridge, FTMF Expansion Card and Software
• Silicon Manufacturer: Cypress
• Kit Application Type: Sensing - Touch / Proximity
• Application Sub Type: Capacitive Touch
• Silicon Family Name: PSoC
• Kit Contents: USB Dongle, Demo Board, Manuals And Software
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: CY8C24894
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 428-2018

Getting Started
2.4.4
12
CapSense Proximity Sensing Demonstration
The CapSense proximity sensing demonstration shows how to use a proximity sensor to control
LED color.
The proximity detector requires the use of a Proximity Antenna and can sense an object with approx-
imately 2–3 inches of range. In the FirstTouch Kit, this sense antenna is formed by attaching the pro-
vided wire into the pin socket labeled PRX1 as shown in
the FTMF will establish a baseline reading of the Proximity Antenna. It is therefore necessary to con-
nect the Proximity Antenna prior to plugging in the FirstTouch kit.
The project is setup to recalculate this baseline approximately every 30 seconds. Also notice how
the shape and position of the wire affects the demonstration operation and the proximity sensing dis-
tance.
Follow the CapSense Touch Sensing based guidelines in section
Card Demonstration Projects
CapSense proximity sensing demonstration. Slowly approach the CapSense proximity sensor
(depicted in
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 LEDs output.
Figure 2-1 on page
Figure 2-5. CapSense Proximity Sensing Demo Schematic
to simulate, build, and program the FTMF Expansion Board with the
8) with your fingers and notice how the color of the LED color
CY3270 PSoC® FirstTouch Guide, Document # 001-15945 Rev. **
Figure 2-1 on page
2.5 Exploring the FTMF Expansion
8. Note Upon power up,