I have to write a simple program (The Piano - Using buttons and speaker, create a program that plays different notes when different buttons are pressed.)

Order of Flow Piano

First Decision Level Play Note 1 when Button 1 is pressed

Second Decision Level Play Note 2 when Button 2 is pressed

Third Decision Level Play Note 3 when Button 3 is pressed

That is the code

////INCLUDE STATEMENTS // Including the libraries with the functions we need for this program #include #include "engi1020.h"

////MAIN - Every C++ program beings with main() function int main() {

//TODO - Define variables you might need throughout the code here //Suggestions? Variables to store note frequencies, pin output values

//Required at beginning of each lab file - initialize Arduino and other hardware. initLab();

//Required by Arduino - main() function must have this WHILE loop //Use it to keep the program running while (true == true) - ie forever! while ( true ) {

//TODO - Implement design (flowchart) here in C++ //NOTE that you can call digitalRead() from the Arduino library to get button state //- If a button is pressed, the value returned from digitalRead() will be HIGH //- If a button is not pressed, the value returned from digitalRead() will be LOW

//Wait for 100ms before ending loop delay(100); }

//Every main() needs to return a value because its type is not void return 0; }

--------------------------------

usful functions

//General library functions

void initLab();

//LCD functions and variables

void initLCD(unsigned int r, unsigned int g, unsigned int b);

void printLCD(const String msg);

void printLCD(const float msg);

void clearLCD();

void backgroundLCD(unsigned int r, unsigned int g, unsigned int b);

//Temperature sensor-related functions and variables

const int B = 4275; // B value of the thermistor

const long R0 = 100000; // R0 = 100k

const int pinTempSensor = A0; // Grove - Temperature Sensor connect to A0

float calculateCelsius(int sensorValue);

void printCelsius(float c);

void printFahrenheit(float f);

void setTemperatureColour(float p);

//Rotary dial sensor functions and variables

const int ADC_REF = 5; //reference voltage of ADC is 5v

const int VCC = 5; //VCC of the grove interface

const int FULL_ANGLE = 300; //full value of the rotary angle

const int pinRotarySensor = A1; // Grove - Rotary Sensor connect to A1

//Light sensor functions and variables

const int pinLightSensor = A2; // Grove - Light Sensor connect to A2

//Speaker functions and variables

#define SPEAKER 3 //Indicates speaker will be in D3

void playNote(int f);

//LED functions and variables

#define LED_1 2 //Indicates LED_1 will be in D2

void powerLED();

//Button functions and variables

#define BUTTON_1 8 //Indicates BUTTON_1 will be in D8

#define BUTTON_2 7 //Indicates BUTTON_2 will be in D7

#define BUTTON_3 6 //Indicates BUTTON_3 will be in D6

#define BUTTON_4 5 //Indicates BUTTON_4 will be in D5

//Note that to read button values, you will need to call the Arduino library function

// int val = digitalRead(int pinNumber);

// More info: https://www.arduino.cc/reference/en/language/functions/digital-io/digitalread/

//Button functions and variables

#define TILT_1 8 //Indicates TILT_1 will be in D8

#define TILT_2 7 //Indicates TILT_2 will be in D7

//Note that to read tilt sensor values, you will need to call the Arduino library function

// int val = digitalRead(int pinNumber);

// More info: https://www.arduino.cc/reference/en/language/functions/digital-io/digitalread/

//Ultrasonic functions and variables

const int trigPin = 9; //Trig - white Jumper

const int echoPin = 8; //Echo - yellow Jumper

long getSonicDistance();

//LED Bar functions and variables

const int clockPin = 7; //Clock Pin for LED Bar

const int dataPin = 6; //Data Pin for LED Bar

const bool orientation = true;

void initBar();

void setBarLevel(float level);

void setBarLED(int led, float brightness);

void toggleBarLED(int led);

void setBarBits(unsigned int bits);

//Servo functions and variables

#define SERVO_1 4 //Indicates TILT_1 will be in D4

void setServoPosition(float angle);