Nestor Rueda
This is the final project involving a parking distance guider and radar distance sensor, with an additional setting option involved. It was made by Nestor Isaac Garcia Rueda (SID: 200798965) and e-mail address: nestorgarciarueda@hotmail.com
Dependencies: N5110 PowerControl SRF02 beep mbed
Button.cpp
- Committer:
- NestorLDS
- Date:
- 2015-05-11
- Revision:
- 0:356be0c38cf1
File content as of revision 0:356be0c38cf1:
/**
@file Button.cpp
@brief main file for the Ultrasound Distance Sensor Project.
@brief Has three main functions; parking distance guide, ultrasound radar and settings.
@brief Revision 3.6.
@author Nestor Isaac Garcia Rueda (200798965)
@date 02/May/2015
*/
/*Here, we are including the following libraries and its respectively codes*/
#include "mbed.h" /*Importing the mbed.h library header file of the mbed NXP LPC 1768 Microcontroller*/
#include "N5110.h" /*Importing the N5110.h library header file of the Nokia 5110 LCD screen*/
#include "SRF02.h" /*Importing the SRF02.h library header file of the SRF02 ultrasound device*/
#include "beep.h" /*Importing beep.h library header file of the beep library*/
#include "PowerControl/PowerControl.h" /*Importing the PowerControl/PowerControl.h library header file of the PowerControl library*/
#include "PowerControl/EthernetPowerControl.h" /*Importing the PowerControl/EthernetPowerControl.h library header file of the PowerControl library*/
AnalogIn pot(p20); /*Declaring name space (pot) and pin number (p20) of the potentiometer*/
Beep buzzer(p21); /*Declaring name space (buzzer) and pin number (p21) of the buzzer speaker*/
InterruptIn button(p18); /*Declaring name space (button) and pin number (p18) of the interrupt button*/
BusOut inLeds(LED3,LED4); /*Declaring name space (inLeds) and inner embedded LEDs of mbed NXP LPC 1768 Microcontroller*/
//Serial serial(USBTX,USBRX); /*Declaration of serial interface for CoolTerm debugging with usb transmitter and receiver defintitions*/
BusOut pcbLEDS (p25,p24,p23,p22); /*Declaring name space (pcbLEDS) and its corresponding pin numbers (p25,p24,p23,p22) of the LEDs of the PCB*/
N5110 lcd(p7,p8,p9,p10,p11,p13,p26); /*Declaring name space (lcd) and corresponding pin numbers (p7,p8,p9,p10,p11,p13,p26) of the Nokia 5110 LCD screen*/
SRF02 srf02(p28,p27); /*Declaring SDA and SCL pins (p28,p27)*/
Ticker onBoardLedTimer; /*Ticker object for blinking on board LED*/
Ticker refLed; /*Ticker object to eliminate the need for wait() function for the on-PCB status LED's*/
Ticker clearTimer;
int c = 1; /*Float is 0.something and 'int' represents whole numbers, where we are declaring 'c' to be a whole number and to have a value of 1*/
void ledFlow() /*Void function for executing the brightness backlight pre-intro presentation*/
{
pcbLEDS = 8; /*The named space previously defined, lights on, in this case 2^3= 8 in binary, therefore it only will the fourth led*/
wait_ms(200); /*Waiting time delay of 0.2 seconds*/
pcbLEDS = 12; /*Lights on, in this case 2^3+2^2= 12 in binary, therefore it will only the third and fourth led*/
wait_ms(200); /*Delay of 0.2 seconds*/
pcbLEDS = 14; /*Lights on, in this case 2^3+2^2+2^1= 14 in binary, therefore it will only the second, third and fourth led*/
wait_ms(200); /*Delay of 0.2 seconds*/
pcbLEDS = 15; /*Lights on, in this case 2^3+2^2+2^1+2^0= 15 in binary, therefore it will all the four leds*/
wait_ms(200); /*Delay of 0.2 seconds*/
pcbLEDS = 0; /*Lights off all leds*/
}
float d = 1; /* Float is 0.smth and int whole*/
void ledLaserA() /* Void function named ledLaserA for executing the code below to be able to be called and run, executing the different led states*/
{
pcbLEDS = 1; /*The named space previously defined, lights on, in this case 2^0= 1 in binary, therefore it only will the first led*/
wait_ms(110); /*Delay of 0.11 seconds*/
pcbLEDS = 3;; /*Lights on, in this case 2^1+2^0= 3 in binary, therefore it only will the first and second leds*/
wait_ms(90); /*Delay of 0.09 seconds*/
pcbLEDS = 7;; /*Lights on, in this case 2^2+2^1+2^0= 7 in binary, therefore it only will the first, second and third leds*/
wait_ms(90); /*Delay of 0.09 seconds*/
pcbLEDS = 15; /*Lights on, in this case 2^3+2^2+2^1+2^0= 15 in binary, therefore it will then the first, second, third and fourth leds*/
wait_ms(90); /*Delay of 0.09 seconds*/
}
void ledLaserB() /*void function for ledLaserB led flashing states*/
{
pcbLEDS = 8; /*The named space previously defined, lights on, in this case 2^3= 8 in binary, therefore it only will the fourth led*/
wait_ms(110); /*Delay of 0.11 seconds*/
pcbLEDS = 12; /*Lights on, in this case 2^3+2^2= 12 in binary, therefore it will only the third and fourth led*/
wait_ms(90); /*Delay of 0.09 seconds*/
pcbLEDS = 14; /*Lights on, in this case 2^3+2^2+2^1= 14 in binary, therefore it will only the second, third and fourth led*/
wait_ms(90); /*Delay of 0.09 seconds*/
pcbLEDS = 15; /*Lights on, in this case 2^3+2^2+2^1+2^0= 15 in binary, therefore it will all the four leds*/
wait_ms(90); /*Delay of 0.09 seconds*/
pcbLEDS = 0; /*Lights off all leds*/
}
int buttonFlag = 0; /*between variable = 0 and variableReading = 0.3*/
int buttonAltFlag = 0; /*Alternate flag between variable = 0.3 and variableReading = 0.6*/
int buttonSecondAltFlag = 0; /*Second Alternate flag beyond variable = 0*/
float variableReading = pot.read(); /*fetches potentiometer reading between 0 and 1 and stores it in a variable, potReading*/
void action() //Interrupt Service Routine for Button
{
if(variableReading <= 0.3) { //less than this pot ratio
buttonFlag = !buttonFlag; //if flag = 0 set it to 1; otherwise reset it to 0.
}
else if(variableReading > 0.3 & variableReading < 0.6) { //if otherwise pot reading between this pot ratio range - radar
buttonAltFlag = !buttonAltFlag; //if flag = 0 set it to 1; otherwise reset it to 0.
}
else if(variableReading >= 0.6) { //or else this pot ratio is exceeded
//lcd.setBrightness(pot.read());
buttonSecondAltFlag = !buttonSecondAltFlag;
// lcd.setBrightness(pot.read());
}
if ( variableReading < 0.6 && buttonSecondAltFlag == 1) {
buttonSecondAltFlag = !buttonSecondAltFlag;
// lcd.setBrightness(pot.read());
}
}
int LedFlag = 0; //flag set to change on-board LED state
void LedTimerSet() //Interrupt Service Routine for LedTimer
{
LedFlag = 1; //set flag when timer expires.
}
int refLedFlag = 0;
void refLedFlipped()
{
refLedFlag = 1;
}
int clearFlag = 0;
void clearTimeout()
{
clearFlag = 1;
}
bool state;
float a= 0.0; /*Floating data integer type constant defined as "a" and given the value of 0.0*/
int counter = 0; /*Integer r set as an integer of 0*/
void increaseBrightness() /*void function for executing the brightness backlight pre-intro presentation*/
{
a+=0.2; /*increases by 0.2 the 'a' constant*/
lcd.setBrightness(a); /*the lcd brightness is been set, with the pre-set and defined constant ''a'', as the initial value state*/
wait_ms(150); /*Delay of 0.15 seconds*/
}
void preIntro () /*void function for preIntro that performs the counting, increment and reset of the constant "a" state depending on its floating value, taking into account the task of counting floating numbers*/
{
while(counter < 2) { /*A while loop that when the counter reaches 2, stops executing*/
increaseBrightness(); /*calls the function*/
if (a>0.4 && a<0.7) {
lcd.inverseMode(); /*White and black pixels get inversed*/
}
else if (a>=1) { /*so i} the constant 'a' gets higher or equal to 1, after increasing by 0.2 every time, will execute the code line below*/
a = 0;
counter++; /*sets the constant 'a' value to 0 and adds 1 to the counter when the if statement is met*/
} else { /*Else statement*/
lcd.normalMode(); /*Calls the member function normal mode running the code*/
}
}
}
void superIntro()
{
//LCD DISPLAY
ledFlow(); /*calls the ledFlow function been declared above*/
lcd.clear(); /*Clears screen by running the member function clear of the class lcd*/
lcd.refresh(); /*Refreshes screen by runnig member function*/
pcbLEDS = 0; /*Lights off all leds*/
lcd.printString("Electronic",15,0); /*Calls the member function printString running the code and allowing us to print what's between quotation marks and the coordinates Y,X axis of 15 and 0*/
lcd.printString("&",40,1); /*Prints on the lcd screen only the symbol "&" between quotation marks on the 40,1 Y,X axis coordinates*/
lcd.printString("Electrical",6,2); /*Prints "Electrical" on the 6,2 X,Y axis coordinates of the LCD*/
lcd.printString("Engineer",37,3); /*Prints "Engineer" on the 37,3 X,Y axis coordinates of the LCD*/
lcd.printString("PRESENTS",5,4); /*Prints "PRESENTS" on the 5,4 X,Y axis coordinates of the LCD*/
lcd.printString("///*///*///*//",0,5); /*Prints "///*///*///*//" on the 0,5 X,Y axis coordinates of the LCD*/
wait(2); /*Delay of 2 secs*/
ledFlow(); /*calls the ledFlow function been declared above*/
lcd.clear(); /*Clears screen by running the member function clear of the class lcd*/
lcd.printString("///*///*///*//",0,0); /*Prints "///*///*///*//" on the 0,0 X,Y axis coordinates of the LCD*/
lcd.printString("The",34,1); /*Prints "The" on the 34,1 X,Y axis coordinates of the LCD*/
lcd.printString("SRF",34,2); /*Prints "SRF" on the 34,2 X,Y axis coordinates of the LCD*/
lcd.printString("Ultrasound",13,3); /*Prints "Ultrasound" on the 13,3 X,Y axis coordinates of the LCD*/
lcd.printString("Project",21,4); /*Prints "Project" on the 21,4 X,Y axis coordinates of the LCD*/
lcd.printString("///*///*///*//",0,5); /*Prints "///*///*///*//" on the 0,5 X,Y axis coordinates of the LCD*/
lcd.inverseMode(); /*calls the function from the N5110.h library and runs the function inverseMode to inverse the B&W pixel states*/
wait(2); /*waiting time of 2secs*/
ledFlow(); /*calls the ledFlow function been declared above*/
lcd.clear(); /*clears screen*/
lcd.printString("///*///*///*//",0,0); /*Prints "///*///*///*//" on the 0,0 X,Y axis coordinates of the LCD*/
lcd.printString("Designed",15,1); /*Prints "Designed" on the 15,1 X,Y axis coordinates of the LCD*/
lcd.printString("By",34,2); /*Prints "By" on the 34,2 X,Y axis coordinates of the LCD*/
lcd.printString("Nestor Isaac",7,3); /*Prints "Nestor Isaac" on the 7,3 X,Y axis coordinates of the LCD*/
lcd.printString("Garcia Rueda",7,4); /*Prints "Garcia Rueda" on the 7,4 X,Y axis coordinates of the LCD*/
lcd.printString("///*///*///*//",0,5); /*Prints "///*///*///*//" on the 0,5 X,Y axis coordinates of the LCD*/
lcd.normalMode(); /*calls the function from the N5110.h library and runs the function normalMode to normal the B&W pixel states*/
wait(3); /*waiting time of 3secs*/
pcbLEDS=15; /*Lights on, in this case 2^3+2^2+2^1+2^0= 15 in binary, therefore it will all the four leds*/
lcd.refresh(); /*refreshes screen by running the corresponding member function*/
lcd.clear(); /*clears screen by running the corresponding member function inside the lcd class*/
}
int main () /*Starts the main function where "int" represents the data type of the return value from the pgoramme where if returned a 0, means that its worked ok and if returned 1, would mean that something went wrong*/
{ /*Curly bracket that reresets the openning/begining of the main function*/
PHY_PowerDown(); /*Ethernet Power-Down, saves up around 175mW*/
lcd.init(); /*Initialises screen by running the member function init of the class lcd*/
preIntro(); /*Calls the defined void function "preIntro" declared above*/
superIntro(); /*Calls the defined void function "preIntro" declared above*/
button.rise(&action);
onBoardLedTimer.attach(&LedTimerSet,1.0); /*call ISR every second second*/
refLed.attach(&refLedFlipped,0.3); /*call ISR once after 0.3 seconds elapse*/
clearTimer.attach(&clearTimeout,0.25); /* calls ISR every quarter of a second*/
while(1) { /*Initialises a while loop that loops reading code forever*/
if(clearFlag) { /*If statement that only executing if the clearFlag statement is met and runs the inner statement of "if"*/
lcd.clear(); /*clears screen by running the corresponding member function inside the lcd class*/
clearFlag = 0; /*Makes the clearFlag value to be set initially as 0*/
variableReading = pot.read(); /*Here, we are just saying that the declared floating declaration variableReading is equals to pot.read(), which reads the potentiometer resistance*/
/*serial.printf("variable reading is %d\n",state);*/ /*This code was additionally used as for debugging purposes using CoolTerm so we could print ht ereadings when connecting our mbed platform to the programme*/
lcd.drawRect(15,5,60,10,0); /* filled black rectangle Y,X,length, width,1=FILLIN/0=NON-FILLING*/
lcd.drawRect(15,20,60,10,0); /* filled black rectangle Y,X,length, width,1=FILLIN/0=NON-FILLING*/
lcd.drawRect(15,35,60,10,0); /* filled black rectangle Y,X,length, width,1=FILLIN/0=NON-FILLING*/
lcd.drawCircle(WIDTH/11,HEIGHT/5.2,5,0); /*Here, it takes the declared WIDTH on the lcd library of 84 pixels(in this case divided by 11) on the x axis and HEIGHT of 48 pixels in the y axis (in this case divided by 5.2),with a radius of 5cm,and 0 fo an white empty circle and 1 for a black filled circle that prints on the lcd screen*/
lcd.drawCircle(WIDTH/11,HEIGHT/1.97,5,0); /*It calls the member function "drawCircle" inside the lcd class, with a WIDTH of 84/11, a HEIGHT of 48/1.97, a radius of 5, and a empty filled circle (0)*/
lcd.drawCircle(WIDTH/11,HEIGHT/1.2,5,0); /*It calls the member function "drawCircle" inside the lcd class, with a WIDTH of 84/11, a HEIGHT of 48/1.2, a radius of 5, and a empty filled circle (0)*/
lcd.printString("PARKING",23,1); /*Prints "Electrical" on the 6,2 X,Y axis coordinates of the LCD*/
lcd.printString("RADAR",29,3); /*Prints "Electrical" on the 6,2 X,Y axis coordinates of the LCD*/
lcd.printString("SETTINGS",20,5); /*Prints "Electrical" on the 6,2 X,Y axis coordinates of the LCD*/
if (variableReading <= 0.3) { /*This is for the PARKING option*/
lcd.drawCircle(WIDTH/11,HEIGHT/5.2,5,1); // x,y,radius,black fill
ledLaserA();
lcd.refresh();
ledLaserB();
lcd.drawCircle(WIDTH/11,HEIGHT/5.2,5,1); // x,y,radius,black fill
lcd.refresh();
while(buttonFlag == 1) {
lcd.clear();
//buzzer.beep(200,1.5);
inLeds = 1;
if(LedFlag) { //if flag has been set
inLeds = inLeds + 1;
if(inLeds < 3) {
inLeds = 0;
}
LedFlag = 0; //reset flag
}
int distReading = srf02.getDistanceCm();
lcd.clear();
char stringBuffer[14];
lcd.printString("Measured range",0,2);
sprintf(stringBuffer,":%dcm",distReading);
lcd.printString(stringBuffer,43,3);
lcd.refresh();
if (distReading >=12 && distReading <=15 ) {
pcbLEDS = 8;
lcd.printString("///*///*///*//",0,0); //Y,X axis
lcd.printString("WELL DONE!",0,1);
lcd.printString("car parked at ",0,2);
lcd.printString("///*///*///*//",0,4); //Y,X axis
lcd.printString("///*///*///*//",0,5); //Y,X axis
buzzer.beep(200,1.5);
wait(4);
}
if (distReading > 15 && distReading <= 30) {
pcbLEDS = 12;
lcd.printString("//////////////",0,0); //Y,X axis
lcd.printString("wall at",0,3);
lcd.printString("Slow approach,",0,2);
// lcd.printString("recommended",0,4);
wait_ms(300);
}
if (distReading > 30 && distReading <= 50) {
pcbLEDS = 14;
wait_ms(300);
}
if (distReading > 50 && distReading <= 50) {
pcbLEDS = 15;
wait_ms(300);
} else {
//pcbLEDS = 15;
// wait_ms(300);
// pcbLEDS = 0;
ledFlow();
lcd.refresh();
}
lcd.refresh();
// if (distReading < 35) {
// buzzer.beep(500,1.0);
// pcbLEDS = 14;
// wait_ms(300);
//
// if (distReading < 25) {
// buzzer.beep(1000,1.0);
// pcbLEDS = 12;
// wait_ms(300);
//
// if (distReading < 15) {
// buzzer.beep(9000,1.0);
// pcbLEDS = 8;
// wait_ms(300);
// } //close dist reading 15
// lcd.refresh();
// } //close dist reading 35
// } //close button flag 1
// } //close variable reading 0.3 to 0.6
lcd.refresh();
}
lcd.clear();
lcd.refresh();
}
if (variableReading >0.3 && variableReading <0.6) {
//This is the RADAR option
lcd.drawCircle(WIDTH/11,HEIGHT/1.97,5,1); // x,y,radius,black fill
ledLaserA();
lcd.refresh();
ledLaserB();
lcd.drawCircle(WIDTH/11,HEIGHT/1.97,5,1); // x,y,radius,black fill
lcd.refresh();
while(buttonAltFlag == 1) {
lcd.clear();
//buzzer.beep(200,1.5);
inLeds = 1;
if(LedFlag) { //if flag has been set
inLeds = inLeds + 1;
if(inLeds < 3) {
inLeds = 0;
}
LedFlag = 0; //reset flag
}
int distReading = srf02.getDistanceCm();
lcd.clear();
char stringBuffer[14];
lcd.printString("Measured range",0,2);
sprintf(stringBuffer,": %d cm",distReading);
lcd.printString(stringBuffer,0,3);
lcd.refresh();
if (distReading <=15) {
pcbLEDS = 8;
wait_ms(300);
}
if (distReading > 15 && distReading <= 30) {
pcbLEDS = 12;
wait_ms(300);
}
if (distReading > 30 && distReading <= 50) {
pcbLEDS = 14;
wait_ms(300);
}
if (distReading > 50 && distReading <= 50) {
pcbLEDS = 15;
wait_ms(300);
} else {
//pcbLEDS = 15;
// wait_ms(300);
// pcbLEDS = 0;
ledFlow();
}
lcd.refresh();
// if (distReading < 35) {
// buzzer.beep(500,1.0);
// pcbLEDS = 14;
// wait_ms(300);
//
// if (distReading < 25) {
// buzzer.beep(1000,1.0);
// pcbLEDS = 12;
// wait_ms(300);
//
// if (distReading < 15) {
// buzzer.beep(9000,1.0);
// pcbLEDS = 8;
// wait_ms(300);
// } //close dist reading 15
// lcd.refresh();
// } //close dist reading 35
// } //close button flag 1
// } //close variable reading 0.3 to 0.6
lcd.refresh();
}
}
if (variableReading >= 0.6) {
//This is the the SETTINGS option
lcd.drawCircle(WIDTH/11,HEIGHT/1.2,5,1); // x,y,radius,black fill
if(refLedFlag == 1) {
ledLaserA();
lcd.refresh();
ledLaserB();
refLedFlag = 0;
}
lcd.refresh();
lcd.drawCircle(WIDTH/11,HEIGHT/1.2,5,1); // x,y,radius,black fill
//lcd.printString("SETTINGS",20,5); //X,Y axis
// buzzer.beep(12000,1.0);
while(buttonSecondAltFlag == 1) {
lcd.clear();
variableReading = pot.read(); // This, has to beinside the while loop as otherwise it would not bear it in mind when coding
lcd.setBrightness(variableReading);
char stringBuffer[14];
lcd.drawRect(15,6.5,60,10,0); // filled empty rectangle Y,X,length, width,1=FILLIN/0=NON-FILLING
lcd.drawCircle(WIDTH/11,HEIGHT/4.7,5,1); // x,y,radius,transparent with outline
lcd.printString("LCD lumen",19,1);
// buzzer.beep(200,1.5);
//lcd.printString("Measured range",0,3);
float tempVarReading = variableReading * 100;
sprintf(stringBuffer,": %.1f%%",tempVarReading);
lcd.printString(stringBuffer,0,4);
lcd.refresh();
//buzzer.beep(200,1.5);
//lcd.refresh();
wait(0.4);
// // wait(0.5);
} //close while buttonSecondAltFlag
} //close if var reading greater than 0.6
} //close while(1)
}//close main
//}
}