Capacitive Touchscreen Display Reference Design
Texas Instruments
Description
Capacitive touchscreen displays generally provide a higher quality and better user experience than traditional resistive touchscreen displays. This reference design shows how to interface a capacitive touchscreen display to the Sitara AM437x processors. The display has an integrated touchscreen controller that interfaces with the AM437x via its I2C port.
End equipment reference diagrams
Features
Color 7-Inch TFT LCD panel with capacitive touch user interfaceWVGA 800x480 pixel resolution with 24-bit RGB interface LCD interface connected to the integrated DSS (Display Sub-System) of the Sitara AM437x processor Capacitive Touch Screen connected to the Sitara AM437x processor over I2C 27 white LED's for backlight controlled TPS61081 PWM controlled LED driverThe required power for the LCD is provided by the TPS65105 Linear regulator supply.Complete sub-system reference with schematics: BOM: design files: and HW User's Guideimplemented on a fully assembled board developed for testing and validation.
Applications
- Clinical pulse oximeter
- Refrigerator & freezer
- Oscilloscopes & digitizers
- Infusion pump
- Video recorder
- Digital multimeter (DMM)
- Flat panel
- Intrusion HMI panel
- Spectrometer
- HVAC gateway
- Thermostat
- Wearable fitness & activity monitor
- Software defined radio
- Aircraft cockpit display
- Interconnect/distribution box
- Lab & field Instrumentation
- Automotive test
- Spectrum analyzer
- Dishwasher
- Oven
- Multifunction printer
- Coffee machine
- Mixer
- blender & food processor
- Intrusion control panel
- Electronic hospital bed & bed control
- Beauty & grooming
- AC charging (pile) station
- Key panel
- Central inverter
- DC fast charging station
