Help With Class Project

12bam1 · May 10, 2024, 1:01pm

Hello! This is my first post. Im in a situation where I have a school assingment that Ive been frying my brain over and hoped that someone could really really help me with this as I am not proficient in coding at all but can do basic coding. I Have the Arduino Smart Home kit that uses the Arduino Uno board. Im currently on the 15th project of assembling the entire home and have it working, but the teacher wants me to modify the code under these pre-reqs

These is the connections based on the smarthome kit so far

Link (Project 15) KS0085 Keyestudio Smart Home Kit for Arduino - Keyestudio Wiki

Modifications needed below

1:When at night someone passes by Photosensor (Pin A1) , Both LED Lights blink alternately (Pin 5 & Pin 13)

2: Change the password to “..---.-" (Note: The old password is ”. - - . - .” which means short press button1, long press button1, long press button1, short press button1, long press button1, short press button1.)

3: When Gas Sensor detects gas (Pin A0), Buzzer (Pin 3) emits a tick-tick sound as normal and the window will open and close (Pin 10).

4: When Steam Sensor detects no rain (Pin A3), window opens

As light intensity increases on photosensor (Pin A1), increase speed of fan and as light decreases speed of fan decreases (Pin 6 GVS and Pin 7S)

5: When soil sensor is wet (Pin A2) and steam sensor detects rain (Pin A3) the house will do whatever it does normally and Yellow and white LEDS Blink alternately

The code itself that i need help with

//call the relevant library file
#include <Servo.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
//Set the communication address of I2C to 0x27, display 16 characters every line, two lines in total
LiquidCrystal_I2C mylcd(0x27, 16, 2);

//set ports of two servos to digital 9 and 10
Servo servo_10;
Servo servo_9;

volatile int btn1_num;//set variable btn1_num
volatile int btn2_num;//set variable btn2_num
volatile int button1;//set variable button1
volatile int button2;//set variable button2
String fans_char;//string type variable fans_char
volatile int fans_val;//set variable fans_char
volatile int flag;//set variable flag
volatile int flag2;//set variable flag2
volatile int flag3;//set variable flag3
volatile int gas;//set variable gas
volatile int infrar;//set variable infrar
String led2;//string type variable led2
volatile int light;//set variable light
String pass;//string type variable pass
String passwd;//string type variable passwd

String servo1;//string type variable servo1
volatile int servo1_angle;//set variable light
String servo2;//string type variable servo2
volatile int servo2_angle;//set variable servo2_angle

volatile int soil;//set variable soil
volatile int val;//set variable val
volatile int value_led2;//set variable value_led2
volatile int water;//set variable water

int length;
int tonepin = 3; //set the signal end of passive buzzer to digital 3
//define name of every sound frequency
#define D0 -1
#define D1 262
#define D2 293
#define D3 329
#define D4 349
#define D5 392
#define D6 440
#define D7 494
#define M1 523
#define M2 586
#define M3 658
#define M4 697
#define M5 783
#define M6 879
#define M7 987
#define H1 1045
#define H2 1171
#define H3 1316
#define H4 1393
#define H5 1563
#define H6 1755
#define H7 1971

#define WHOLE 1
#define HALF 0.5
#define QUARTER 0.25
#define EIGHTH 0.25
#define SIXTEENTH 0.625

//set sound play frequency
int tune[] =
{
  M3, M3, M4, M5,
  M5, M4, M3, M2,
  M1, M1, M2, M3,
  M3, M2, M2,
  M3, M3, M4, M5,
  M5, M4, M3, M2,
  M1, M1, M2, M3,
  M2, M1, M1,
  M2, M2, M3, M1,
  M2, M3, M4, M3, M1,
  M2, M3, M4, M3, M2,
  M1, M2, D5, D0,
  M3, M3, M4, M5,
  M5, M4, M3, M4, M2,
  M1, M1, M2, M3,
  M2, M1, M1
};

//set music beat
float durt[] =
{
  1, 1, 1, 1,
  1, 1, 1, 1,
  1, 1, 1, 1,
  1 + 0.5, 0.5, 1 + 1,
  1, 1, 1, 1,
  1, 1, 1, 1,
  1, 1, 1, 1,
  1 + 0.5, 0.5, 1 + 1,
  1, 1, 1, 1,
  1, 0.5, 0.5, 1, 1,
  1, 0.5, 0.5, 1, 1,
  1, 1, 1, 1,
  1, 1, 1, 1,
  1, 1, 1, 0.5, 0.5,
  1, 1, 1, 1,
  1 + 0.5, 0.5, 1 + 1,
};


void setup() {
  Serial.begin(9600);//set baud rate to 9600
  
  mylcd.init();
  mylcd.backlight();//initialize LCD
  //LCD shows "passcord:" at first row and column
  mylcd.setCursor(1 - 1, 1 - 1);
  mylcd.print("passcord:");
  
  servo_9.attach(9);//make servo connect to digital 9
  servo_10.attach(10);//make servo connect to digital 10
  servo_9.write(0);//set servo connected digital 9 to 0°
  servo_10.write(0);//set servo connected digital 10 to 0°
  delay(300);
  
  pinMode(7, OUTPUT);//set digital 7 to output
  pinMode(6, OUTPUT);//set digital 6 to output
  digitalWrite(7, HIGH); //set digital 7 to high level
  digitalWrite(6, HIGH); //set digital 6 to high level
  
  pinMode(4, INPUT);//set digital 4 to input
  pinMode(8, INPUT);//set digital 8 to input
  pinMode(2, INPUT);//set digital 2 to input
  pinMode(3, OUTPUT);//set digital 3 to output
  pinMode(A0, INPUT);//set A0 to input
  pinMode(A1, INPUT);//set A1 to input
  pinMode(13, OUTPUT);//set digital 13 to input
  pinMode(A3, INPUT);//set A3 to input
  pinMode(A2, INPUT);//set A2 to input

  pinMode(12, OUTPUT);//set digital 12 to output
  pinMode(5, OUTPUT);//set digital 5 to output
  pinMode(3, OUTPUT);//set digital 3 to output
  length = sizeof(tune) / sizeof(tune[0]); //set the value of length
}

void loop() {
  auto_sensor();
  if (Serial.available() > 0) //serial reads the characters
  {
    val = Serial.read();//set val to character read by serial    Serial.println(val);//output val character in new lines
    pwm_control();
  }
  switch (val) {
    case 'a'://if val is character 'a'，program will circulate
      digitalWrite(13, HIGH); //set digital 13 to high level，LED 	lights up
      break;//exit loop
    case 'b'://if val is character 'b'，program will circulate
      digitalWrite(13, LOW); //Set digital 13 to low level, LED is off
      break;//exit loop
    case 'c'://if val is character 'c'，program will circulate
      digitalWrite(12, HIGH); //set digital 12 to high level，NO of relay is connected to COM
      break;//exit loop
    case 'd'://if val is character 'd'，program will circulate
      digitalWrite(12, LOW); //set digital 12 to low level，NO of relay is disconnected to COM

      break;//exit loop
    case 'e'://if val is character 'e'，program will circulate
      music1();//play birthday song
      break;//exit loop
    case 'f'://if val is character 'f'，program will circulate
      music2();//play ode to joy song
      break;//exit loop
    case 'g'://if val is character 'g'，program will circulate
      noTone(3);//set digital 3 to stop playing music
      break;//exit loop
    case 'h'://if val is character 'h'，program will circulate
      Serial.println(light);//output the value of variable light in new lines
      delay(100);
      break;//exit loop
    case 'i'://if val is character 'i'，program will circulate
      Serial.println(gas);//output the value of variable gas in new lines
      delay(100);
      break;//exit loop
    case 'j'://if val is character 'j'，program will circulate
      Serial.println(soil);//output the value of variable soil in new lines
      delay(100);
      break;//exit loop
    case 'k'://if val is character 'k'，program will circulate
      Serial.println(water);//output the value of variable water in new lines
      delay(100);
      break;//exit loop
    case 'l'://if val is character 'l'，program will circulate
      servo_9.write(180);//set servo connected to digital 9 to 180°
      delay(500);
      break;//exit loop
    case 'm'://if val is character 'm'，program will circulate
      servo_9.write(0);;//set servo connected to digital 9 to 0°
      delay(500);
      break;//exit loop
    case 'n'://if val is character 'n'，program will circulate
      servo_10.write(180);//set servo connected to digital 10 to 180°
      delay(500);
      break;//exit loop
    case 'o'://if val is character 'o'，program will circulate
      servo_10.write(0);//set servo connected to digital 10 to 0°
      delay(500);
      break;//exit loop
    case 'p'://if val is character 'p'，program will circulate
      digitalWrite(5, HIGH); //set digital 5 to high level, LED is on
      break;//exit loop
    case 'q'://if val is character 'q'，program will circulate
      digitalWrite(5, LOW); // set digital 5 to low level, LED is off
      break;//exit loop
    case 'r'://if val is character 'r'，program will circulate
      digitalWrite(7, LOW);
      digitalWrite(6, HIGH); //fan rotates anticlockwise at the fastest speed
      break;//exit loop
    case 's'://if val is character 's'，program will circulate
      digitalWrite(7, LOW);
      digitalWrite(6, LOW); //fan stops rotating
      break;//exit loop
  }
}

////////////////////////set birthday song//////////////////////////////////
void birthday()
{
  tone(3, 294); //digital 3 outputs 294HZ sound 
  delay(250);//delay in 250ms
  tone(3, 440);
  delay(250);
  tone(3, 392);
  delay(250);
  tone(3, 532);
  delay(250);
  tone(3, 494);
  delay(500);
  tone(3, 392);
  delay(250);
  tone(3, 440);
  delay(250);
  tone(3, 392);
  delay(250);
  tone(3, 587);
  delay(250);
  tone(3, 532);
  delay(500);
  tone(3, 392);
  delay(250);
  tone(3, 784);
  delay(250);
  tone(3, 659);
  delay(250);
  tone(3, 532);
  delay(250);
  tone(3, 494);
  delay(250);
  tone(3, 440);
  delay(250);
  tone(3, 698);
  delay(375);
  tone(3, 659);
  delay(250);
  tone(3, 532);
  delay(250);
  tone(3, 587);
  delay(250);
  tone(3, 532);
  delay(500);
}



//detect gas
void auto_sensor() {
  gas = analogRead(A0);//assign the analog value of A0 to gas
  if (gas > 700) {
//if variable gas>700
    flag = 1;//set variable flag to 1
    while (flag == 1)
      //if flag is 1, program will circulate
    {
      Serial.println("danger");//output "danger" in new lines
      tone(3, 440);
      delay(125);
      delay(100);
      noTone(3);
      delay(100);
      tone(3, 440);
      delay(125);
      delay(100);
      noTone(3);
      delay(300);
      gas = analogRead(A0);//gas analog the value of A0 to gas
      if (gas < 100)  //if variable gas is less than 100
      {
        flag = 0;//set variable flag to 0
        break;//exit loop exist to loop
      }
    }

  } else
    //otherwise
  {
    noTone(3);// digital 3 stops playing music
  }
  light = analogRead(A1);////Assign the analog value of A1 to light
  if (light < 300)//if variable light is less than 300
  {
    infrar = digitalRead(2);//assign the value of digital 2 to infrar 
    Serial.println(infrar);//output the value of variable infrar in new lines
    if (infrar == 1)
      // if variable infra is 1
    {
      digitalWrite(13, HIGH); //set digital 13 to high level, LED is on
    } else//Otherwise
    {
      digitalWrite(13, LOW); //set digital 13 to low level, LED is off 
    }

  }
  water = analogRead(A3);//assign the analog value of A3 to variable water
  if (water > 800)
    // if variable water is larger than 800
  {
    flag2 = 1;//if variable flag 2 to 1
    while (flag2 == 1)
      // if flag2 is 1, program will circulate
    {
      Serial.println("rain");//output "rain" in new lines
      servo_10.write(180);// set the servo connected to digital 10 to 180°
      delay(300);//delay in 300ms
      delay(100);
      water = analogRead(A3);;//assign the analog value of A3 to variable water
      if (water < 30)// if variable water is less than 30
      {
        flag2 = 0;// set flag2 to 0
        break;//exit loop
      }
    }

  } else//Otherwise
  {
    if (val != 'u' && val != 'n')
      //if val is not equivalent 'u' either 'n'
    {
      servo_10.write(0);//set servo connected to digital 10 to 0°
      delay(10);

    }

  }
  soil = analogRead(A2);//assign the analog value of A2 to variable soil
  if (soil > 50)
    // if variable soil is greater than 50
  {
    flag3 = 1;//set flag3 to 1
    while (flag3 == 1)
      //If set flag3 to 1, program will circulate 
    {
      Serial.println("hydropenia ");//output "hydropenia " in new lines
      tone(3, 440);
      delay(125);
      delay(100);
      noTone(3);
      delay(100);
      tone(3, 440);
      delay(125);
      delay(100);
      noTone(3);//digital 3 stops playing sound
      delay(300);
      soil = analogRead(A2);//Assign the analog value of A2 to variable soil
      if (soil < 10)//If variable soil<10
      {
        flag3 = 0;//set flag3 to 0
        break;//exit loop
      }
    }

  } else//Otherwise
  {
    noTone(3);//set digital 3 to stop playing music
  }
  door();//run subroutine
}

void door() {
  button1 = digitalRead(4);// assign the value of digital 4 to button1
  button2 = digitalRead(8);//assign the value of digital 8 to button2


  if (button1 == 0)//if variablebutton1 is 0
  {
    delay(10);//delay in 10ms
    while (button1 == 0) //if variablebutton1 is 0，program will circulate
    {
      button1 = digitalRead(4);// assign the value of digital 4 to button1
      btn1_num = btn1_num + 1;//variable btn1_num plus 1
      delay(100);// delay in 100ms
    }

  }
  if (btn1_num >= 1 && btn1_num < 5) //1≤if variablebtn1_num<5
  {
    Serial.print(".");
    Serial.print("");
    passwd = String(passwd) + String(".");//set passwd 
pass = String(pass) + String(".");//set pass
    //LCD shows pass at the first row and column
    mylcd.setCursor(1 - 1, 2 - 1);
    mylcd.print(pass);
  }
  if (btn1_num >= 5)
    //if variablebtn1_num ≥5
  {
    Serial.print("-");
    passwd = String(passwd) + String("-");//Set passwd 
    pass = String(pass) + String("-");//set pass
    //LCD shows pass at the first row and column
    mylcd.setCursor(1 - 1, 2 - 1);
    mylcd.print(pass);

  }
  if (button2 == 0) //if variablebutton2 is 0
  {
    delay(10);
    if (button2 == 0)//if variablebutton2 is 0
    {
      if (passwd == ".--.-.")//if passwd is ".--.-."
      {
        mylcd.clear();//clear LCD screen
        //LCD shows "open!" at first character on second row
        mylcd.setCursor(1 - 1, 2 - 1);
        mylcd.print("open!");
        servo_9.write(100);//set servo connected to digital 9 to 100°
        delay(300);
        delay(5000);
        passwd = "";
        pass = "";
        mylcd.clear();//clear LCD screen
        //LCD shows "password:"at first character on first row
        mylcd.setCursor(1 - 1, 1 - 1);
        mylcd.print("password:");

      } else //Otherwise
      {
        mylcd.clear();//clear LCD screen
        //LCD shows "error!"at first character on first row
        mylcd.setCursor(1 - 1, 1 - 1);
        mylcd.print("error!");
        passwd = "";
        pass = "";
        delay(2000);
        //LCD shows "again" at first character on first row
        mylcd.setCursor(1 - 1, 1 - 1);
        mylcd.print("again");
      }
    }
  }
  infrar = digitalRead(2);//assign the value of digital 2 to infrar
  if (infrar == 0 && (val != 'l' && val != 't'))
    //if variable infrar is 0 and val is not 'l' either 't'
  {
    servo_9.write(0);//set servo connected to digital 9 to 0°
    delay(50);
  }
  if (button2 == 0)//if variablebutton2 is 0
  {
    delay(10);
    while (button2 == 0) //if variablebutton2 is 0，program will circulate
    {
      button2 = digitalRead(8);//assign the value of digital 8 to button2
      btn2_num = btn2_num + 1;//variable btn2_num plus 1
      delay(100);
      if (btn2_num >= 15)//if variablebtn2_num ≥15
      {
        tone(3, 532);
        delay(125);
        mylcd.clear();//clear LCD screen
        //LCD shows "password:" at the first character on first row
        mylcd.setCursor(1 - 1, 1 - 1);
        mylcd.print("password:");
        //LCD shows "wait" at the first character on first row
        mylcd.setCursor(1 - 1, 1 - 1);
        mylcd.print("wait");
      } else//Otherwise
      {
        noTone(3);//digital 3 stops playing music
      }
    }

  }
  btn1_num = 0;//set btn1_num to 0
  btn2_num = 0;//set btn2_num to 0
}

// Birthday song
void music1() {
  birthday();
}
//Ode to joy
void music2() {
  Ode_to_Joy();
}
void Ode_to_Joy()//play Ode to joy song
{
  for (int x = 0; x < length; x++)
  {
    tone(tonepin, tune[x]);
    delay(300 * durt[x]);
  }
}

//PWM control
void pwm_control() {
  switch (val)
  {
    case 't'://if val is 't'，program will circulate
      servo1 = Serial.readStringUntil('#');
      servo1_angle = String(servo1).toInt();
      servo_9.write(servo1_angle);//set the angle of servo connected to digital 9 to servo1_angle
      delay(300);
      break;//exit loop
    case 'u'://if val is 'u'，program will circulate
      servo2 = Serial.readStringUntil('#');
      servo2_angle = String(servo2).toInt();
      servo_10.write(servo2_angle);//set the angle of servo connected to digital 10 to servo2_angle
      delay(300);
      break;//exit loop
    case 'v'://if val is 'v'，program will circulate
      led2 = Serial.readStringUntil('#');
      value_led2 = String(led2).toInt();
      analogWrite(5, value_led2); //PWM value of digital 5 is value_led2
      break;//exit loop
    case 'w'://if val is 'w'，program will circulate
      fans_char = Serial.readStringUntil('#');
      fans_val = String(fans_char).toInt();
      digitalWrite(7, LOW);
      analogWrite(6, fans_val); //set PWM value of digital 6 to fans_val，the larger the value, the faster the fan
      break;//exit loop
  }
}

If anyone can help me modify the code to the previous mentioned requirements i would be super grateful

rsmls · May 10, 2024, 1:11pm

Your gratitude is of course very much appreciated, but personally, it wouldn't make me feel stimulated to do the changes for you. It's a school assignment and the purpose of this is to learn something from doing it - and that something is probably not 'being grateful to the stranger who did the work for me'.

So my proposal is this:

Start with the first requirement. Modify your code in an attempt to implement it. If you get stuck, post the best attempt you have and indicate how it is not performing as you anticipated. Then there will undoubtedly people coming along with hints on where you're going wrong.

How does that sound?

lastchancename · May 10, 2024, 1:18pm

Perhaps the person that wrote the original code can help you ?
It’s not very well written/structured, so they’ll be the best to help.

xfpd · May 11, 2024, 10:26pm

Here, let me set you up for life: Really, really read your material and really, really study and you will become really, really proficient... at everything. I hope you are not taking a seat from someone who really, really wants to be in that class. Show this to your instructor.

It is obvious you did not compile the code, or even look at it. It works.

Half of question 1 is already written.
Question 2 is already written.
Question 3 is horribly written, but only lacks the window.
Question 4 same as question 3.
Question 5 lacks the LEDs

You have not completed anything for your class, because "blinking LEDs" was in lesson 1... and your teacher allowed you to stay around through lesson 15?

cattledog · May 11, 2024, 11:23pm

Your best approach is to go back to each of the 15 lessons where the code section is introduced and modify each section in that simplified environment. Then you can build them into the complete modified program.

Even if you can't do the complete all the modifications of the assignment, you are likely to get partial credit and the instructor can see your approach.

paulpaulson · May 12, 2024, 3:45am

That's a very nice wording for spaghetti code.

paulpaulson · May 12, 2024, 4:26am

Hello 12bam1

Welcome to the world's best Arduino forum ever.

I´v made a small code review.

First advice:
You should not use magic numbers. The I/O pins love to have a functional name.

Second advice:
The use of the delay() function, a total of 62 calls were counted, prevents the expected real-time behaviour of the program.

How to do?
Divide the programme into non-blocking functions that are called via a control structure.

Have a nice day and enjoy coding in C++.

GolamMostafa · May 12, 2024, 4:57am

Do you have codes/ksetch only for the above part -- if so, please post it.

xfpd · May 12, 2024, 6:10pm

I made a wokwi toy. Lots of magic numbers. I re-arranged the randomness of pin declarations and add/commented-out a section for one of the tunes.

hallowed31 · May 12, 2024, 8:49pm

In your sketch, open the find function with CTRL+F
Paste this in: if (passwd == ".--.-.") Click Find.
Change it to what you like.

Tip: Make a second copy of the sketch. Close the first. Rename the new one whateverTestVer or something that makes sense to you.

Then take all those functions for the gas monitor, pwm, etc and cut/paste them into their own new tabs CTRL+Shift+N.
Name them whatever makes sense to you. Then it's esier to snap to the parts of the code you need to fix. Compile after every one to check as you go that it still compiles and didn't make things harder for yourself. I got three extra tabs out of your sketch, made it easy to see where to change the password.

hallowed31 · May 12, 2024, 9:01pm

Using that handy CTRL+F to search up stuff, type in the word "infrar" and cycle through until you see the part of code that almost matches this

    infrar = digitalRead(2);//assign the value of digital 2 to infrar 
    Serial.println(infrar);//output the value of variable infrar in new lines
    if (infrar == 1)
      // if variable infra is 1
    {
      digitalWrite(13, HIGH); //set digital 13 to high level, LED is on
      digitalWrite(5, LOW);
    } else//Otherwise
    {
      digitalWrite(13, LOW); //set digital 13 to low level, LED is off 
      digitalWrite(5, HIGH);
    }

Fix yours to match this.
That should alternate the led when someone walks past the photoresistor

system · November 8, 2024, 9:01pm

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