Diff: main.cpp

Revision:

0:479e94f82332

Child:

2:57ae9d39b375

diff -r 000000000000 -r 479e94f82332 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Aug 23 14:58:55 2022 +0000
@@ -0,0 +1,193 @@
+/**Ciaran Kane-18689005-- Low cost Target Localisation---- Awkknowledgements Dr Edmond Nurellari Joystick Library. Craig Evans N5110 Library. Mbed HCSR04 Liibrary .
+enji Arai Piezo library.
+
+/**----Libraries*/
+#include "mbed.h"
+#include "Joystick.h"
+#include "N5110.h"  
+#include "ultrasonic.h"  
+#include "piezo_bz.h" 
+
+/**Setting interrupts for buttons*/
+//There is only 4 butons due to my HCSR04 sensor being wired into two of the buttons channels
+volatile int g_bumperL_flag = 0;
+volatile int g_bumperR_flag = 0;
+volatile int g_BACK_flag = 0;
+volatile int g_START_flag = 0; 
+
+/**Voids for N5110 Menu Display*/
+void initialiseMbed();
+void menu();
+void targetLocate();
+void initUltrasonic();
+void dist(int distance);
+
+/**I/O definition*/
+InterruptIn bumperL_btn(PTB18);
+InterruptIn bumperR_btn(PTB3);
+InterruptIn BACK_btn(PTB19);
+InterruptIn START_btn(PTC5);
+N5110 lcd(PTC9,PTC0,PTC7,PTD2,PTD1,PTC11);
+Serial pc(USBTX, USBRX);                                                              
+BusOut redleds(PTA1,PTA2,PTC2);
+BusOut greenleds(PTC3,PTC4,PTD3);
+PwmOut piezo(PTC10);                                                                                     
+DigitalOut trigPin(PTD0);
+DigitalIn echoPin(PTC12);
+Joystick joystick(PTB10,PTB11,PTC16);
+ultrasonic Sensor(PTD0, PTC12, .5, 1, &dist);
+
+
+/** Design and thought process goes into more detail in the associated report written for this project.
+But i will give a brief breakdown of what this simple code entails below:
+
+*Calling for initialisation of mbedded controller on startup whilst all LEDS's on
+when inialisation is complete turn off red LED's
+
+*all for menu where you have an option to initialise the sensor or 
+locate targets whilst red LED's stay on until one is selected using the left and right bumper
+then green LEDS on
+
+*If target locate is selected call for targetLocate void to show that a target is being located whilst green LEDS on
+
+*If sensor intialisation is selected then sound piezo buzzer for a period of 10 seconds until sensor is initialised
+
+*If target is found call for Located void with string text and turn on redLEDS and sound buzzer for 5 seconds to indicate target
+
+*After target is located call for results void to display distance from sensor 
+*/
+//Main Program
+int main()
+{
+    lcd.init();
+    lcd.setContrast(0.4);
+    lcd.setBrightness(0.5);
+    initialiseMbed();
+    Sensor.startUpdates();
+    // printf ("Ultrasonic Updates started");
+    }
+
+void initialiseMbed() {
+    
+    greenleds= 1;
+    redleds=0;
+    lcd.clear();
+    lcd.printString("MBED",0,0);
+    lcd.printString("Controller",0,1);
+    lcd.printString("Initialising",0,2);
+    lcd.printString("Ciaran Kane",0,5);
+    lcd.refresh();
+    wait(1); 
+    lcd.printString("Initialising.",0,2);
+    lcd.refresh();
+    wait(1);
+    lcd.printString("Initialising..",0,2);
+    lcd.refresh();
+    wait(5.0);
+    lcd.clear();
+    lcd.printString("Initialised",0,0);
+    lcd.printString("Press Start",0,1);
+    lcd.printString("For",0,2);
+    lcd.printString("Main Menu",0,3);
+    lcd.printString("",0,4);
+    lcd.printString("Ciaran Kane",0,5);
+    lcd.refresh();
+    greenleds=0;
+    redleds=1;
+    wait(5.0);
+    
+    while(1)
+    {
+        wait(0.5);
+        if (g_START_flag==1) {
+            menu();
+            }
+            }
+            }
+
+           
+void menu()
+{
+    lcd.clear();
+    lcd.printString("Main Menu",0,0);
+    lcd.printString("Target Localise",0,2);
+    lcd.printString("Sensor Initialise",0,4);
+    lcd.printString("Ciaran Kane",0,5);
+        while(1)
+    {
+        wait(0.5);
+        if (g_bumperL_flag==1) {
+            initUltrasonic();
+            }
+        else if(g_bumperR_flag==1) { 
+          targetLocate();
+            }
+            }
+           }
+        
+           
+void initUltrasonic()
+{
+      
+    greenleds= 1;
+    redleds=0;
+    lcd.clear();
+    lcd.printString("Ultrasonic",0,0);
+    lcd.printString("Sesnor",0,1);
+    lcd.printString("Initialising",0,2);
+    lcd.printString("Ciaran Kane",0,5);
+    lcd.refresh();
+    wait(1); 
+    lcd.printString("Initialising.",0,2);
+    lcd.refresh();
+    wait(1);
+    lcd.printString("Initialising..",0,2);
+    lcd.refresh();
+    wait(5.0);
+    lcd.clear();
+    lcd.printString("Initialised",0,0);
+    lcd.printString("Press Start",0,1);
+    lcd.printString("For",0,2);
+    lcd.printString("Main Menu",0,3);
+    lcd.printString("",0,4);
+    lcd.printString("Ciaran Kane",0,5);
+    lcd.refresh();
+    greenleds=0;
+    redleds=1;
+    wait(5.0);
+    
+    while(1)
+    {
+        wait(0.5);
+        if (g_START_flag==1) {
+            menu();
+            }
+            }
+            }
+void dist(int distance)
+{
+     //printf("sense = %d\n", sense);
+    // printf("Distance changed to %dmm\r\n", distance);
+    
+            lcd.clear();
+     
+            char buffer[14];
+            int length = sprintf(buffer,"%dmm", distance);
+            if (length <= 14)
+    
+            lcd.printString("set object to",0,0);
+            lcd.printString("    200mm",0,1);
+            lcd.printString(buffer,24,3);
+            lcd.refresh();
+     
+    }
+
+void targetLocate()
+{  
+    lcd.printString("Searching",0,1);
+    lcd.printString("For",0,2);
+    lcd.printString("Target",0,3);
+    lcd.clear();
+    lcd.printString("Target",0,0); 
+    lcd.printString("Found!",0,1);
+    }
\ No newline at end of file