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Kattela Vinaykumar

This document summarizes a project to design and develop a wireless controlled LED/LCD display system. Key aspects include: - The system uses a wireless keypad to transmit data entries to update the main LED or LCD display wirelessly. This allows for easier workflow than hardwired systems. - An FPGA acts as the main controller, handling key presses, key bounce, transmitting data to the LCD via SPI, and buffering data in a FIFO to transmit wirelessly. - The design supports multi-lingual character displays and can transmit at selectable data rates like 2400, 4800, or 9600 baud. It reduces power consumption by only powering the RF module during data transmission.

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Book of Abstracts 1 March 2011 Design and Development of Wireless Controlled LED/LCD based Intelligent Display System VINAY KUMAR KATTELA vinay.drdo@yahoo.co.in Ph. No: 0 96633 94114 Delegate¡¯s Name VINAY KUMAR.K VLSI (PT-2008) Academic Supervisors Cyril Prasanna Raj P. Industrial Supervisor(s) Kiran Bogineni, GE, Bangalore Keywords: Wireless control display, Keypad with key bounce control, intelligent display system Abstract: Wireless controlled LED/LCD keypad can be used to update the LED or LCD main display¡¯s as a means of wireless transmission of required data between the user and the main display with automatic transmission. This significantly affects and make the life simpler with easier workflow to update the required data wirelessly. The performance of the wireless transmitter is improved by optimised method of data transmssion rather than sending out the data continuously . In this project work a complete wireless controlled keypad display system is designed and developed. A multi- lingual language display design has been developed to drive the graphical display with different characters related to different languages. Architecture of this design is such that the FPGA acts as the main controller for the LCD display, the keypad and the wireless module. Whenever a character key is pressed, the core within the FPGA does the key press detection, takes care of the key bounce, sends the respective bytes to the LCD display via SPI interface as well stores the respective bytes into the FIFO so that the keyed in information can be transmitted wirelessly once the FIFO is filled. This design is with one of novel idea to drive the display with wireless control methodology. The workflow includes the data to be transmitted to update on the LED or LCD main displays to be keyed on the keypad provided in the intelligent display system, The keyed in data is verified firstly on the graphical LCD display avialble on the keypad and further the transmitted data wirelessly is being captured by a wireless receiver eval kit. The captured data is compared with the transmitted data. The core can operate with a maximum frequency of 50Mhz with minimum memory usage of about 2000 bits, the design is modular to change the data rate transmission with required baud rate transmission like 2400, 4800 and 9600. The power consumption of the designed board is reduced based on switching on the RF module on when transmission of data is required; the observed reduced current is around 100mA at 3.3V supply. Wireless controlled display system Circuit Board Block diagram Design simulation Hardware test setup of Display system

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THESIS_POSTER

  • 1. Book of Abstracts 1 March 2011 Design and Development of Wireless Controlled LED/LCD based Intelligent Display System VINAY KUMAR KATTELA vinay.drdo@yahoo.co.in Ph. No: 0 96633 94114 Delegate¡¯s Name VINAY KUMAR.K VLSI (PT-2008) Academic Supervisors Cyril Prasanna Raj P. Industrial Supervisor(s) Kiran Bogineni, GE, Bangalore Keywords: Wireless control display, Keypad with key bounce control, intelligent display system Abstract: Wireless controlled LED/LCD keypad can be used to update the LED or LCD main display¡¯s as a means of wireless transmission of required data between the user and the main display with automatic transmission. This significantly affects and make the life simpler with easier workflow to update the required data wirelessly. The performance of the wireless transmitter is improved by optimised method of data transmssion rather than sending out the data continuously . In this project work a complete wireless controlled keypad display system is designed and developed. A multi- lingual language display design has been developed to drive the graphical display with different characters related to different languages. Architecture of this design is such that the FPGA acts as the main controller for the LCD display, the keypad and the wireless module. Whenever a character key is pressed, the core within the FPGA does the key press detection, takes care of the key bounce, sends the respective bytes to the LCD display via SPI interface as well stores the respective bytes into the FIFO so that the keyed in information can be transmitted wirelessly once the FIFO is filled. This design is with one of novel idea to drive the display with wireless control methodology. The workflow includes the data to be transmitted to update on the LED or LCD main displays to be keyed on the keypad provided in the intelligent display system, The keyed in data is verified firstly on the graphical LCD display avialble on the keypad and further the transmitted data wirelessly is being captured by a wireless receiver eval kit. The captured data is compared with the transmitted data. The core can operate with a maximum frequency of 50Mhz with minimum memory usage of about 2000 bits, the design is modular to change the data rate transmission with required baud rate transmission like 2400, 4800 and 9600. The power consumption of the designed board is reduced based on switching on the RF module on when transmission of data is required; the observed reduced current is around 100mA at 3.3V supply. Wireless controlled display system Circuit Board Block diagram Design simulation Hardware test setup of Display system