saleh jaffal
an ultrasonic sensor used as a car sensor
Dependencies: N5110 PowerControl beep mbed sensor
Diff: main.cpp
- Revision:
- 2:9328053b2ba7
- Parent:
- 1:475a5b7258fa
--- a/main.cpp Fri May 08 15:41:29 2015 +0000
+++ b/main.cpp Mon May 11 19:49:17 2015 +0000
@@ -8,107 +8,132 @@
#include "main.h"
+
int main()
-{
-
- // the LCD display is initiated first when switch is on
-
+{
+
+
+ PHY_PowerDown(); /// the Ethernet cable is powered down
+ lcd.init(); /// the LCD display is initialised when switch is on
+ welcomeMessage(); /// the welcome message will appear
+ button.rise(&buttonPressed); /// event generated on rising edge
- PHY_PowerDown();
- lcd.init();
- welcomeMessage();
- pot.read();
- lcd.clear();
- button.rise(&buttonPressed);
-
while (1) {
-
- lcd.setBrightness(pot.read());
-
-
- if (i==0)
- {
- getDistanceCm();
- compDist();
-
-
- }
- else if (i==1)
- {
- getDistanceIn();
- compDist();
- // Sleep();
-
-
- }
- else if (i==2)
- {
- getDistanceUs();
- compDist();
- // Peripheral_PowerUp(0xFFFFFFFF);
- }
- else {
-
- getAcc();
- compDist();
+
+ mypotVal = mypot; ///sets a variable to change as the pot is changing
+ lcd.setBrightness(mypotVal); ///sets the brightness to the pot value
+ compDist(); ///compares the distance to set it in a specific range
- }
-
}
-
}
-void buttonPressed()
+void buttonPressed()
{
- wait(0.2);
+ wait(0.2);
- if (i>3)
- {
- i=0;
-
-
+ if (i>1) ///when button is pressed it will check if i >1
+ { i=0; /// if it is it will set it to 0
}
- else {
- i++;
+ else
+ { i++; /// if not it will increment i by one
}
- }
+
+}
- //Print welcome message (Change pixel coordinate later)
+
+
+ ///Print welcome message
void welcomeMessage()
{
- lcd.printString("200911007", 0,1);
- lcd.printString("Saleh Jaffal", 0,0);
- lcd.refresh();
- getDistanceCm();
+
+ lcd.printString("University of ",5,0);
+ lcd.printString("Leeds",27,1);
+
+ lcd.refresh();
+
+ lcd.drawRect(59,36,5,11,0);///bottom left rectangle is set
+ lcd.drawRect(72,36,5,11,0);///bottom right rectangle is set
+ lcd.drawRect(64,34,8,13,0);///bottom middle rectangle is set
+
+ lcd.drawRect(60,33,16,3,0); /// is set over the bottom rectangles
+
+ lcd.drawCircle(68,40,2,0); /// circle is set on bottom middle box
+
+ lcd.drawRect(61,26,14,7,0);///big middle box is set over everything
+
+ lcd.drawRect(63,27,10,0.5,1);///top black rectangle is set
+
+ lcd.drawRect(64.5,28,1,0.5,1);///left middle black rect is set
+ lcd.drawRect(67.5,28,1,0.5,1);///middle black rect is set
+ lcd.drawRect(70,28,1,0.5,1);///right middle black rect is set
+ lcd.drawRect(64.5,28,0.5,3.5,1);///left bottom black rect is set
+ lcd.drawRect(67.5,28,0.5,3.5,1);///middle bottom black rect is set
+ lcd.drawRect(70,28,0.5,3.5,1);///right bottom black rect is set
+
+ lcd.drawRect(62,21,12,5,0);///rectangle is set over big middle box
+
+ lcd.drawRect(66,22,0.5,0.5,1);///left top black rect is set
+ lcd.drawRect(68,22,0.5,0.5,1);///top black rect is set
+ lcd.drawRect(70,22,0.5,0.5,1);///right top black rect is set
+ lcd.drawRect(66,22,0.5,2,1);///left bottom black rect is set
+ lcd.drawRect(68,22,0.5,2,1);///middle bottom black rect is set
+ lcd.drawRect(70,22,0.5,2,1);///right bottom black rect is set
+
+ lcd.drawRect(64,17,8,4,0);///rectangle under triangle is set
+
+ lcd.drawLine(64,17,68,13.5,1);///left line to complete triangle
+
+ lcd.drawLine(72,17,68,13.5,1);///right line to complete triangle
+
+
+
+ lcd.clearPixel(65, 36); ///clears intersecting lines from rectangle
+ lcd.clearPixel(66, 36);
+ lcd.clearPixel(67, 36);
+ lcd.clearPixel(68, 36);
+ lcd.clearPixel(69, 36);
+ lcd.clearPixel(70, 36);
+ lcd.clearPixel(71, 36);
+
+ lcd.refresh();
+
+
+
+ wait(3.0);
+ lcd.clear();
+
+
+
+ lcd.printString("Saleh Jaffal",8,2);
+ lcd.printString("200911007",15,3);
+
+ lcd.refresh();
+
+ lcd.drawRect(6,12,73,21,0);
+ lcd.drawRect(4,10,77,25,0);
+
+ lcd.refresh();
+
+
+
+ getDistanceCm(); ///gets the distance after the message
getDistanceIn();
getDistanceUs();
+
+
+
}
-void getAcc()
-{
- getDistanceCm();
- getDistanceUs();
-
- dist = sensor.getDistanceCm();
- tim = sensor.getDistanceUs();
-
-
- Vel2 = ((dist)*10000/tim);
- Vel1 = ((distanceCm*10000)/distanceUs);
- Acc = (Vel2-Vel1)/(tim-distanceUs);
-
-
- }
void getDistanceCm()
{
- distance1 = sensor.getDistanceCm();
- distance2 = sensor.getDistanceCm();
+ distance1 = sensor.getDistanceCm(); ///adds up 10 distances read by the sensor
+ distance2 = sensor.getDistanceCm(); ///there is a 70 ms delay between each reading
distance3 = sensor.getDistanceCm();
distance4 = sensor.getDistanceCm();
distance5 = sensor.getDistanceCm();
@@ -119,9 +144,9 @@
distance10 = sensor.getDistanceCm();
sum = distance1+distance2+distance3+distance4+distance5+distance6+distance7+distance8+distance9+distance10;
-
+ ///all of them are added to the sum
- distanceCm = sum/10;
+ distanceCm = sum/10; ///the sum is divided by 10 to get the average
}
@@ -132,8 +157,8 @@
void getDistanceIn()
{
- distance1 = sensor.getDistanceIn();
- distance2 = sensor.getDistanceIn();
+ distance1 = sensor.getDistanceIn(); ///adds up 10 distances read by the sensor
+ distance2 = sensor.getDistanceIn(); ///there is a 70 ms delay between each reading
distance3 = sensor.getDistanceIn();
distance4 = sensor.getDistanceIn();
distance5 = sensor.getDistanceIn();
@@ -145,16 +170,17 @@
sum = distance1+distance2+distance3+distance4+distance5+distance6+distance7+distance8+distance9+distance10;
-
- distanceIn = sum/10;
+ ///all of them are added to the sum
+
+ distanceIn = sum/10; ///the sum is divided by 10 to get the average
}
void getDistanceUs()
{
- distance1 = sensor.getDistanceUs();
- distance2 = sensor.getDistanceUs();
+ distance1 = sensor.getDistanceUs(); ///adds up 10 distances read by the sensor
+ distance2 = sensor.getDistanceUs(); ///there is a 70 ms delay between each reading
distance3 = sensor.getDistanceUs();
distance4 = sensor.getDistanceUs();
distance5 = sensor.getDistanceUs();
@@ -166,240 +192,253 @@
sum = distance1+distance2+distance3+distance4+distance5+distance6+distance7+distance8+distance9+distance10;
+ ///all of them are added to the sum
- distanceUs = sum/10;
+ distanceUs = sum/10; ///the sum is divided by 10 to get the average
}
+void compDist() ///used to compare the distances
+{
+
+switch (i)
+{
+
+ case 0:
+ {
+ getDistanceCm();
+ ///calls this action to show the reading
+ char buffer[14];
+ /// each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
+ int length = sprintf(buffer," %d cm",distanceCm);
+ /// print formatted data to buffer
+ if(length<=14);
+ /// if string will fit on display
+
+ lcd.clear(); /// clears LCD
+ lcd.drawRect(6,12,73,21,0);///sets 2 rectangles
+ lcd.drawRect(4,10,77,25,0);
+ lcd.printString("Distance =",8,2);///prints distance and the reading below it
+ lcd.printString(buffer,8,3);
+
+ lcd.refresh(); ///refreshes LCD screen
+
+
+
+ ///compares distances and sets them in their specified range
+ if (distanceCm >= 100) {
+ A=0; ///sets case
+ distanceA();
+ }
+ else if (distanceCm >= 80 && distanceCm <= 99) {
+ A=1; ///sets case
+ distanceA();
+ }
+ else if (distanceCm >= 60 && distanceCm <= 79) {
+ A=2; ///sets case
+ distanceA();
+ }
+ else if (distanceCm >= 40 && distanceCm <= 59) {
+ A=3; ///sets case
+ distanceA();
+ }
+ else if (distanceCm >= 20 && distanceCm <=39 ) {
+ A=4; ///sets case
+ distanceA();
+ }
+ else {
+ A=5; ///sets case
+ distanceA();
+ }
+ }
+ break;
+
+ case (1):
+{
+ getDistanceIn();
+ ///calls this action to show the reading
+ char buffer[14];
+ /// each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
+ int length = sprintf(buffer," %d in",distanceIn);
+ /// print formatted data to buffer
+ if(length<=14);
+ /// if string will fit on display
+
+ lcd.clear(); /// clears LCD
+ lcd.drawRect(6,12,73,21,0);/// sets 2 rectangles
+ lcd.drawRect(4,10,77,25,0);
+ lcd.printString("Distance =",8,2);/// prints distance and the reading below it
+ lcd.printString(buffer,8,3);
+
+ lcd.refresh(); /// refreshes LCD screen
+
+ ///compares distances and sets them in their specified range
+ if (distanceIn >= 40) {
+ A=0; ///sets case
+ distanceA();
+ }
+ else if (distanceIn >= 32 && distanceIn <= 39) {
+ A=1; ///sets case
+ distanceA();
+ }
+ else if (distanceIn >= 24 && distanceIn <= 31) {
+ A=2; ///sets case
+ distanceA();
+ }
+ else if (distanceIn >= 16 && distanceIn <= 23) {
+ A=3; ///sets case
+ distanceA();
+ }
+ else if (distanceIn >= 8 && distanceIn <=15 ) {
+ A=4; ///sets case
+ distanceA();
+ }
+ else {
+ A=5; ///sets case
+ distanceA();
+ }
+ }
+ break;
+
+ case(2):
+ {
+ getDistanceUs();
+ ///calls this action to show the reading
+ char buffer[14];
+ /// each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
+ int length = sprintf(buffer," %d us",distanceUs);
+ /// print formatted data to buffer
+ if(length<=14);
+ /// if string will fit on display
+
+ lcd.clear(); /// clears LCD
+ lcd.drawRect(6,12,73,21,0);/// sets 2 rectangles
+ lcd.drawRect(4,10,77,25,0);
+ lcd.printString("Distance =",8,2);/// prints distance and the reading below it
+ lcd.printString(buffer,8,3);
+
+ lcd.refresh(); /// refreshes LCD screen
+
+
+ ///compares distances and sets them in their specified range
-void distanceA()
+ if (distanceUs >= 5900) {
+ A=0; ///sets case
+ distanceA();
+ }
+ else if (distanceUs >= 4680 && distanceUs <= 5899) {
+ A=1;///sets case
+ distanceA();
+ }
+ else if (distanceUs >= 3400 && distanceUs <= 4679) {
+ A=2;///sets case
+ distanceA();
+ }
+ else if (distanceUs >= 2430 && distanceUs <= 3339) {
+ A=3;///sets case
+ distanceA();
+ }
+ else if (distanceUs >= 1220 && distanceUs <=2429 ) {
+ A=4;///sets case
+ distanceA();
+ }
+ else {
+ A=5;///sets case
+ distanceA();
+ }
+
+ }
+ break;
+
+
+
+ }
+ }
+
+void distanceA() //sets leds and buzzer for each case
{
+ switch (A){
+
+ case(0):
+ { //case 0 would have 1 LED on
green1=1;
green2=0;
yellow1=0;
yellow2=0;
red1=0;
red2=0;
- buzzer.beep(2000,0.1);
-}
+ lcd.printString("Out of range",0,0);
+ buzzer.beep(2000, 0.1); ///@see This code was from a library I found
+
-void distanceB()
-{
+}
+break;
+
+case(1):
+{ ///case 1 would have 2 LED's on
green1=1;
green2=1;
yellow1=0;
yellow2=0;
red1=0;
red2=0;
-
-
- buzzer.beep(2000,0.15);
+ lcd.printString("In range",0,0);
+ buzzer.beep(2000, 0.1); ///@see This code was from a library I found
}
+break;
-void distanceC()
-{ green1=1;
+case(2):
+{ //green1=1; ///case 2 would have 3 LED's on
green2=1;
yellow1=1;
yellow2=0;
red1=0;
red2=0;
-
-
- buzzer.beep(2000,0.2);
+ lcd.printString("Take Care!",0,0);
+ buzzer.beep(2000, 0.2);
}
+break;
-void distanceD()
+case(3):
{
- green1=1;
+ green1=1; ///case 3 would have 4 LED's on
green2=1;
yellow1=1;
yellow2=1;
red1=0;
red2=0;
- buzzer.beep(2000,0.25);
+ lcd.printString("Closer!",0,0);
+ buzzer.beep(2000, 0.2); ///@see This code was from a library I found
}
+break;
-void distanceE()
+case(4):
{
- green1=1;
+ green1=1; ///case 4 would have 5 LED's on
green2=1;
yellow1=1;
yellow2=1;
red1=1;
red2=0;
-
-
- buzzer.beep(2000,0.8);
+ lcd.printString("VERY CLOSE!",0,0);
+ buzzer.beep(2000, 0.4); ///@see This code was from a library I found
}
+break;
-void distanceF()
+case(5):
{
- green1=1;
+ green1=1; ///case 5 would have 6 LED's on
green2=1;
yellow1=1;
yellow2=1;
red1=1;
red2=1;
-
-
- buzzer.beep(2000,200);
+ lcd.printString("WATCH OUT!",0,0);
+ buzzer.beep(2000, 1.2); ///@see This code was from a library I found
}
-
-void compDist()
-{
-
-
-
- if (i==0)
- {
-
- char buffer[14];
- int length = sprintf(buffer,"D= %d cm",distanceCm);
- if(length<=14);
-
- lcd.clear();
- lcd.printString(buffer,0,0);
-
-
-
- wait(0.2);
-
-
- if (distanceCm >= 100) {
-
- lcd.refresh();
- distanceA();
- }
- else if (distanceCm >= 80 && distanceCm <= 99) {
-
- lcd.refresh();
- distanceB();
- }
- else if (distanceCm >= 60 && distanceCm <= 79) {
-
- lcd.refresh();
- distanceC();
- }
- else if (distanceCm >= 40 && distanceCm <= 59) {
-
- lcd.refresh();
- distanceD();
- }
- else if (distanceCm >= 20 && distanceCm <=39 ) {
-
- lcd.refresh();
- distanceE();
- }
- else {
-
- lcd.refresh();
- distanceF();
- }
-
- }
- else if (i==1)
-{
- char buffer[14];
- int length = sprintf(buffer,"D= %d in",distanceIn);
- if(length<=14);
- lcd.clear();
- lcd.printString(buffer,0,0);
- wait(0.2);
-
- if (distanceIn >= 40) {
-
- lcd.refresh();
- distanceA();
- }
- else if (distanceIn >= 32 && distanceIn <= 39) {
-
- lcd.refresh();
- distanceB();
- }
- else if (distanceIn >= 24 && distanceIn <= 31) {
-
- lcd.refresh();
- distanceC();
- }
- else if (distanceIn >= 16 && distanceIn <= 23) {
-
- lcd.refresh();
- distanceD();
- }
- else if (distanceIn >= 8 && distanceIn <=15 ) {
-
- lcd.refresh();
- distanceE();
- }
- else {
- lcd.refresh();
- distanceF();
- }
- }
-
- else if (i==2)
- {
- char buffer[14];
- int length = sprintf(buffer,"D= %d us",distanceUs);
- if(length<=14);
- lcd.clear();
- lcd.printString(buffer,0,0);
- wait(0.2);
-
- if (distanceUs >= 5900) {
-
- lcd.refresh();
- distanceA();
- }
- else if (distanceUs >= 4680 && distanceUs <= 5899) {
-
- lcd.refresh();
- distanceB();
- }
- else if (distanceUs >= 3400 && distanceUs <= 4679) {
-
- lcd.refresh();
- distanceC();
- }
- else if (distanceUs >= 2430 && distanceUs <= 3339) {
-
- lcd.refresh();
- distanceD();
- }
- else if (distanceUs >= 1220 && distanceUs <=2429 ) {
-
- lcd.refresh();
- distanceE();
- }
- else {
- lcd.refresh();
- distanceF();
- }
-
- }
-
-
-
-
- else {
-
- char buffer[14];
- int length = sprintf(buffer,"Acc= %d m/s",Vel2);
- if(length<=14);
- char buffer2[14];
- int length2 = sprintf(buffer2,"Acc= %d m/s",Vel1);
- if(length2<=14);
- lcd.clear();
- lcd.printString(buffer,0,0);
- lcd.printString(buffer2,0,2);
-
- wait(0.2);
-
- }
-
-
-}
\ No newline at end of file
+break;
+}}
\ No newline at end of file