Cypress CY3270 manual Light Sensing Demonstration, Light Sensing Demo Schematic

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Getting Started

2.4.3Light Sensing Demonstration

The light sensing demonstration shows how to use an ambient light sensor to control LED intensity. Follow the CapSense Touch Sensing based guidelines in section 2.5 Exploring the FTMF Expansion Card Demonstration Projects to simulate, build, and program the FTMF Expansion Board with the ambient light sensing demonstration. Cover the light sensor (see Figure 2-1 on page 8) 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. The CY8C21434 PSoC that resides on the FTMF Expansion Card detects the ambient light and controls the LEDs output.

Figure 2-4. Light Sensing Demo Schematic

CY3270 PSoC® FirstTouch™ Guide, Document # 001-15945 Rev. **

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Contents PSoC FirstTouch Guide Copyrights Contents Contents Introduction Document Conventions Document HistoryGetting Started Install Hardware and Run the CapSense Touch Sensing DesignInstall Software Ftmf Expansion Card Ftmf Expansion Card DemonstrationsCapSense Touch Sensing Demo Schematic CapSense Touch Sensing Demonstration defaultTemperature Sensing Demo Schematic Temperature Sensing DemonstrationLight Sensing Demonstration Light Sensing Demo SchematicCapSense Proximity Sensing Demonstration Modifying the New Project Exploring the Ftmf Expansion Card Demonstration ProjectsOpening a Demonstration Project Programming the Project Simulating the ProjectBuilding the New Project Important Things to Remember Verifying the ResultsUnderstanding the Results Getting Started Ftpc Bridge Details Technical Reference8x2 0.100 Female Expansion Receptacle FirstTouch MultiFunction Expansion Ftmf Card Expansion Card OverviewExpansion Card Details Voltage Regulator do not Power With 5Vdc Ftmf Expansion Pin Number Port Number Design Function CY3270 PSoC FirstTouch Guide, Document # 001-15945 Rev Technical Reference