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
Diff: Button.cpp
- Revision:
- 0:356be0c38cf1
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Button.cpp Mon May 11 21:57:55 2015 +0000
@@ -0,0 +1,447 @@
+/**
+@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
+
+ //}
+}
+
\ No newline at end of file