INTRODUCTION

Embedded Linux Based GLCD application development project is used for interfacing the sensor data card with ARM9 processor based Single Board Computer and displays the records on Graphics LCD (GLCD) with read-through of upper and lower limit of incoming data through two encoders and indicating the same on GLCD.
Sensor data card consist of all together four sensors-Temperature, Pressure, Humidity, Distance respectively. Sensed parameters coming from Temperature, Pressure and Humidity sensors are analog data which is given to SBC9302 processor through ADC and Distance sensor data is serial data directly in centimeter which is given to processor through serial port. The precise data coming from all four sensors are displayed on 320 X 240 Graphics LCD in different graphical format. Before displaying data on GLCD all sensed parameters are first set to Upper and Lower Limit by two encoders. These two encoders set the upper and lower limit by two Knobs respectively. Output parameter fluctuate number of pulses which are directly dependant on the knob position. GLCD also shows indication of over and under measurement status after doing respective calculation.

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Introduction

This seminar gives us idea of the project
The project is sponsored by SPJ Embedded Technologies Pvt. Ltd.Pune.
Project is “Embedded Linux Based Graphics LCD application development”.
Industry Specific GUI based application.
Safeguard on site.



Requirement Specifications
320 *240 Graphics LCD
System Block Diagram
Hardware Requirement
Selected Hardware must have the following features supported
ADC Interface
Serial Port Interface
320 X 240 Graphics LCD
RS485 to PC Interface
10/100 MBps Ethernet
Hardware must support the OS like Linux or WinCE
Design of the Base board which will be needed by this particular requirement.

Selected SBC9302 Features
200 MHz （184 MHz for industrial）ARM9 CPU
（EP9315） with MMU
8 MB Flash, 32 MB SDRAM
2 UARTs with option for RS232 / RS422 / RS485 / TTL (3.3V level)
RJ45 Ethernet LAN interface
2 USB Host interface ports
1 USB device interface port

The precise data coming from all four sensors are displayed on 320 X 240 Graphics LCD in different graphical format. Before displaying data on GLCD all sensed parameters are first set to Upper and Lower Limit by two encoders. These two encoders set the upper and lower limit by two Knobs respectively. Output parameter fluctuate number of pulses which are directly dependant on the knob position. GLCD also shows indication of over and under measurement status after doing respective calculation.