Diff: ultrasonic.cpp

Revision:

0:7a82ad48df33

Child:

1:920749af1300

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ultrasonic.cpp	Tue May 05 00:39:32 2015 +0000
@@ -0,0 +1,492 @@
+#include "mbed.h"
+#include "N5110.h"
+#include "beep.h"
+#include "SRF02.h"
+#include "timeMgr.h"
+
+
+//    VCC,SCE,RST,D/C,MOSI,SCLK,LED
+N5110 lcd(p7,p8,p9,p10,p11,p13,p26);
+// Can also power (VCC) directly from VOUT (3.3 V) -
+// Can give better performance due to current limitation from GPIO pin
+
+//          SDA, SCL    
+SRF02 sensor(p28,p27);
+
+Beep beep1(p21);
+AnalogIn potIn (p20);
+
+ DigitalOut Led1 (p24);
+ DigitalOut Led2 (p14);
+ DigitalOut Led3 (p25);
+ DigitalOut Led4 (p23);   
+//=========================
+InterruptIn button1 (p17);
+InterruptIn button2 (p29);
+InterruptIn button3 (p30);
+
+
+//===============================
+int button1Flag = 0;
+int button2Flag = 0;
+int button3Flag = 0; 
+int msgFlag = 1;
+
+//function declarations
+//=========================
+void introMessage();
+void endMessage();
+void errorHandler();
+void menu();
+void demo();
+void cursorSelect(int, int, int, int);
+void cursorMove(int);
+void beeper(float, float);
+void introMessageTimer();
+void menuLevel(float);
+void startMessage();
+void displayClock();
+//====================================
+void distMeasure();
+void saveData();
+void adjustBrightness(float);
+void systemTest();
+//------------------------
+void button1Pressed();
+void button2Pressed();
+void button3Pressed();
+//Global variables initialisation
+//=================================
+//Timer introTimer;
+
+int menuLevelFlag = 0;
+int brightFlag = 0;
+int distFlag = 0;
+int clockFlag = 0;
+//------------------------------
+
+
+int main()
+{
+    // first need to initialise display
+    lcd.init();
+   
+   // button2.rise(&button2Pressed);
+   
+    beeper(1000, 0.5); 
+ 
+    serial.attach(&serialISR); // attach serial ISR
+    
+    set_time(1424535031); // initialise time to 1st January 1970
+    
+    
+    introMessage();
+    
+    button1.rise(&button1Pressed); 
+    button3.rise(&button3Pressed);
+//-----------------------------------------------------
+   
+//-----------------------------------------------------
+     
+    while(1) 
+    { 
+        if (msgFlag)
+        {
+            startMessage(); 
+        }  
+
+        if (button1Flag)
+        {       
+            msgFlag=0;
+            menu(); 
+            menuLevelFlag = 1; 
+        } 
+        
+        if (menuLevelFlag)
+        {
+            button1Flag =0;
+            menuLevel(potIn);
+        }
+        
+        if (distFlag)
+        {
+            menuLevelFlag = 0;
+            distMeasure();
+            if(button1)
+            {
+                distFlag = 0;         
+            } 
+                   
+        } 
+        
+       if (brightFlag)
+        {       
+            menuLevelFlag = 0;
+            adjustBrightness(potIn); 
+            if (button1)
+            {
+                brightFlag = 0;  
+            }    
+        }
+        if (clockFlag)
+        {
+            menuLevelFlag = 0;
+            displayClock();
+            if (button1)
+            {
+                clockFlag = 0;   
+            }       
+        }        
+     }   
+}
+
+void introMessage()
+    {
+        //introducto text a
+        lcd.drawLine(4, 0, 79, 0, 1);
+        lcd.printString("Ultrasonic",13,1);
+        lcd.printString("Distance",18,2);
+        lcd.printString("Sensor",23,3);
+        lcd.drawLine(4, 45, 79, 45, 1);
+        
+        wait(1.3);
+        lcd.clear();
+        
+        //introductory text b
+        lcd.drawLine(4, 0, 79, 0, 1);
+        lcd.printString("University",13,1);
+        lcd.printString("Of",35,2);
+        lcd.printString("Leeds",26,3);
+        lcd.drawLine(4, 45, 79, 45, 1);
+        
+        wait(1.3);
+        lcd.clear();
+        
+        //introductory text c
+        lcd.drawLine(4, 0, 79, 0, 1);
+        lcd.printString("Ibrahim Adam",5,1);
+        lcd.printString("200789110",10,2);
+        lcd.printString("Yr2 - 2015",8,3);
+        lcd.drawLine(4, 45, 79, 45, 1);
+        
+        wait(1.3);
+        lcd.clear();
+        
+        //introductory text c
+        lcd.drawLine(4, 0, 79, 0, 1);
+        lcd.printString("Elec 2645",15,1);
+        lcd.printString("Embedded SYS",8,2);
+        lcd.printString("Project",21,3);
+        lcd.drawLine(4, 45, 79, 45, 1);
+        
+        msgFlag = 1;
+        
+        wait(1.3);
+        lcd.clear();
+    }
+    
+    void mainMenu()
+    {
+           
+    }    
+
+    void endMessage()
+    {
+        //end text
+        lcd.drawLine(4, 0, 79, 0, 1);
+        lcd.printString("Thank You",12,1);
+        lcd.printString("Goodbye",19,2);
+        
+        lcd.drawLine(4, 45, 79, 45, 1);
+        
+        wait(1);
+        lcd.clear();   
+    }    
+    
+    void errorHandler()
+    {
+        //end text
+        lcd.drawLine(4, 0, 79, 0, 1);
+        lcd.printString("Error Help",12,1);
+      
+        
+        wait(0.2);
+        lcd.clear();   
+    }    
+    
+    void adjustBrightness(float x)
+    {
+        if ((x >= 0) && (x < 0.2))
+        {   
+            lcd.setBrightness(0);
+            lcd.printString("Light 0%",13,1);    
+        }
+        
+        if ((x >= 0.2) && (x < 0.4))
+        {
+            lcd.setBrightness(0.25);
+            lcd.printString("Light 25%",13,1);
+        }
+        
+        if ((x >= 0.4) && (x < 0.6))
+        {
+            lcd.setBrightness(0.5);
+            lcd.printString("Light 50%",13,1);  
+        }
+        
+        if ((x >= 0.6) && (x < 0.8))
+        {
+            lcd.setBrightness(0.75);
+            lcd.printString("Light 75%",13,1); 
+               
+        }
+        if (x >= 0.8) 
+        {
+            lcd.setBrightness(1);
+            lcd.printString("Light 100%",13,1);   
+        }
+        lcd.clear();    
+    }   
+    
+void menu()
+{       
+    lcd.clear();             
+    lcd.printString("-MAIN MENU-",9,0);
+    lcd.drawLine(4, 7, 79, 7, 1);
+    lcd.printString("Dist read",15,1);
+    lcd.printString("Save data",15,2);
+    lcd.printString("brightness",15,3);
+    lcd.printString("SYS test",15,4);                               
+}  
+
+void cursorSelect(int xDimm, int xLimm, int yDimm, int yLimm)
+{
+    int i,j;
+             
+    //clear selecton column
+    for (i = 1; i < 6; i++)
+    {
+        for(j = 1; j < 46; j++)
+        {
+            lcd.clearPixel(i,j);
+        }   
+    }    
+    
+    //particular selection
+    for (i = xDimm; i < xLimm; i++)
+    {
+        for(j = yDimm; j < yLimm; j++)
+        {
+            lcd.setPixel(i,j);   
+        }       
+    } 
+    lcd.refresh();          
+}         
+
+void demo()
+{
+    // these are default settings so not strictly needed
+    lcd.normalMode();      // normal colour mode
+        lcd.setBrightness(0.5); // put LED backlight on 50%
+
+        // can directly print strings at specified co-ordinates
+        lcd.printString("Hello, World!",0,0);
+
+        char buffer[14];  // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
+        // so can display a string of a maximum 14 characters in length
+        // or create formatted strings - ensure they aren't more than 14 characters long
+        int temperature = 27;
+        int length = sprintf(buffer,"T = %2d C",temperature); // print formatted data to buffer
+        // it is important the format specifier ensures the length will fit in the buffer
+        if (length <= 14)  // if string will fit on display
+            lcd.printString(buffer,0,1);           // display on screen
+
+        float pressure = 1012.3;  // same idea with floats
+        length = sprintf(buffer,"P = %.2f mb",pressure);
+        if (length <= 14)
+            lcd.printString(buffer,0,2);
+
+        // can also print individual characters at specified place
+        lcd.printChar('X',5,3);
+
+        // draw a line across the display at y = 40 pixels (origin top-left)
+        for (int i = 0; i < WIDTH; i++) 
+        {
+            lcd.setPixel(i,40);
+        }
+        // need to refresh display after setting pixels
+        lcd.refresh();
+
+        // can also check status of pixels using getPixel(x,y)
+
+        wait(5.0);
+        lcd.clear();            // clear display
+        lcd.inverseMode();      // invert colours
+        lcd.setBrightness(1.0); // put LED backlight on full
+
+        float array[84];
+
+        for (int i = 0; i < 84; i++) 
+        {
+            array[i] = 0.5 + 0.5*sin(i*2*3.14/84);
+        }
+
+        // can also plot graphs - 84 elements only
+        // values must be in range 0.0 - 1.0
+        lcd.plotArray(array);
+        wait(5.0);
+        lcd.clear();
+        lcd.normalMode();      // normal colour mode back
+        lcd.setBrightness(0.5); // put LED backlight on 50%
+
+        // example of drawing lines
+        for (int x = 0; x < WIDTH ; x+=10) 
+        {
+            // x0,y0,x1,y1,type 0-white,1-black,2-dotted
+            lcd.drawLine(0,0,x,HEIGHT,2);
+        }
+
+        wait(5.0);
+        lcd.clear();
+
+        // example of how to draw circles
+        lcd.drawCircle(WIDTH/2,HEIGHT/2,20,1);  // x,y,radius,black fill
+        lcd.drawCircle(WIDTH/2,HEIGHT/2,10,2);  // x,y,radius,white fill
+        lcd.drawCircle(WIDTH/2,HEIGHT/2,30,0);  // x,y,radius,transparent with outline
+
+        wait(5.0);
+        lcd.clear();
+
+        // example of how to draw rectangles
+        //          origin x,y,width,height,type
+        lcd.drawRect(10,10,50,30,1);  // filled black rectangle
+        lcd.drawRect(15,15,20,10,2);  // filled white rectange (no outline)
+        lcd.drawRect(2,2,70,40,0);    // transparent, just outline
+
+        wait(5.0);
+        lcd.clear();       
+}     
+
+//Interrupt service routines
+//===========================
+void button1Pressed()
+{
+    button1Flag = 1;
+}       
+void button2Pressed()
+{
+    button2Flag = 1;   
+}    
+void button3Pressed()
+{
+    button3Flag = 1;    
+}   
+
+//beep sound based on beeper frequency and beeper time 
+//entered respectively
+void beeper(float beeperFreq, float beeperTime)
+{
+    beep1.beep(beeperFreq,beeperTime);       
+} 
+     
+void menuLevel(float lvl)
+{
+    if ((lvl >= 0) && (lvl < 0.25))
+    {   
+        cursorSelect(1, 6, 9, 14);
+        if (button2)
+        {   
+            distFlag = 1;
+            brightFlag = 0; 
+            clockFlag = 0;
+        }  
+            
+    }
+    if ((lvl >= 0.25) && (lvl < 0.5))
+    {
+        cursorSelect(1, 6, 17, 22);
+    }
+    if ((lvl >= 0.5) && (lvl < 0.75))
+    {
+        cursorSelect(1, 6, 25, 30); 
+        if (button2)
+        {
+            brightFlag = 1;
+            distFlag =0; 
+            clockFlag = 0;
+        }  
+          
+    }
+    if ((lvl >= 0.75) && (lvl <= 1))
+    {
+        cursorSelect(1, 6, 33, 38);
+        if (button2)
+        {
+            clockFlag = 1;
+            distFlag = 0;
+            brightFlag = 0;     
+        }          
+    }
+                                   
+}    
+void clockA()
+{
+    lcd.printString("Set clock",35,0);       
+} 
+void distMeasure()
+{
+    lcd.clear();
+    lcd.printString("Measure",15,0);
+    
+    // read sensor distance in cm and print over serial port
+    char buffer[14];  // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
+        // so can display a string of a maximum 14 characters in length
+        // or create formatted strings - ensure they aren't more than 14 characters long
+    int distance = sensor.getDistanceCm();
+    int length = sprintf(buffer,"Dist = %2d cm",distance); // print formatted data to buffer
+        // it is important the format specifier ensures the length will fit in the buffer
+    if (length <= 14)  // if string will fit on display
+    {
+        lcd.printString(buffer,0,1);           // display on screen
+    }
+    
+   // serial.printf("Distance = %d cm\n",distance);
+    serial.printf("\n\n\r %s, %0.2f C\n",buffer, length);
+    
+}  
+  
+void saveData()
+{
+    lcd.printString("Save data",36,0);
+}      
+void systemTest()
+{
+    lcd.printString("System test",30,0);
+}    
+void startMessage()
+{
+    lcd.printString("Press",25,2);
+    lcd.printString("Start Button",8,3); 
+    //displayClock();
+           
+} 
+void displayClock()
+{
+    timer2.attach(&timer2Expired,1.0);
+    serial.attach(&serialISR); // attach serial ISR
+    lcd.clear();
+    
+    lcd.printString("-SYS CLOCK-",9,0);
+    
+    if (timer2Flag)
+    {
+        getCurrentTime();   
+    }    
+        
+    if (setTimeFlag) 
+    {
+        chkUpdateTime();         
+    }  
+    
+    lcd.printString(buffer2,4,2);           // display on screen
+}           
\ No newline at end of file