day 11 file i/o on arduino

//Simple Serial Printing Test with a Potentiometer
const int POT=0; //Pot on analog pin 0
void setup()
{
 Serial.begin(9600); //Start serial port with baud = 9600
}
void loop()
{
 int val = analogRead(POT); //Read potentiometer
 int per = map(val, 0, 1023, 0, 100); //Convert to percentage
 Serial.print("Analog Reading: ");
 Serial.print(val); //Print raw analog value
 Serial.print(" Percentage: ");
 Serial.print(per); //Print percentage analog value
 Serial.println("%"); //Print % sign and newline
 delay(1000); //Wait 1 second, then repeat
}
///// reads percentage output when you turn the dial

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

//Tabular serial printing test with a potentiometer
const int POT=0; //Pot on analog pin 0
void setup()
{
 Serial.begin(9600); //Start Serial Port with Baud = 9600
}
void loop()
{
 Serial.println("\nAnalog Pin\tRaw Value\tPercentage");
 Serial.println("------------------------------------------");
 for (int i = 0; i < 10; i++)
 {
 int val = analogRead(POT); //Read potentiometer
 int per = map(val, 0, 1023, 0, 100); //Convert to percentage

 Serial.print("A0\t\t");
 Serial.print(val);
 Serial.print("\t\t");
 Serial.print(per); //Print percentage analog value
 Serial.println("%"); //Print % sign and newline
 delay(1000); //Wait 1 second, then repeat
 }
}
/////// reads the voltage out and the perectagne left until you complete a whole turn.

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//Echo every character
char data; //Holds incoming character
void setup()
{
 Serial.begin(9600); //Serial Port at 9600 baud
}
void loop()
{
 //Only print when data is received
 if (Serial.available() > 0)
 {
 data = Serial.read(); //Read byte of data
 Serial.print(data); //Print byte of data
 }
}

////////writes out character when you input it into the serial moniter

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

//Single Character Control of an LED

const int LED=9;

char data; //Holds incoming character

void setup()

{

 Serial.begin(9600); //Serial Port at 9600 baud

 pinMode(LED, OUTPUT);

}

void loop()

{

 //Only act when data is available in the buffer

 if (Serial.available() > 0)

 {

 data = Serial.read(); //Read byte of data

 //Turn LED on

 if (data == '1')

 {

 digitalWrite(LED, HIGH);

 Serial.println("LED ON");

 }

 //Turn LED off

 else if (data == '0')

 {

 digitalWrite(LED, LOW);

 Serial.println("LED OFF");

 }

 }

}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

//Sending Multiple Variables at Once

//Define LED pins

const int RED =11;

const int GREEN =10;

const int BLUE =9;

//Variables for RGB levels

int rval = 0;

int gval = 0;

int bval = 0;

void setup()

{

 Serial.begin(9600); //Serial Port at 9600 baud

 //Set pins as outputs

 pinMode(RED, OUTPUT);

 pinMode(GREEN, OUTPUT);

 pinMode(BLUE, OUTPUT);

}

void loop()

{

 //Keep working as long as data is in the buffer

 while (Serial.available() > 0)

{

 rval = Serial.parseInt(); //First valid integer

 gval = Serial.parseInt(); //Second valid integer

 bval = Serial.parseInt(); //Third valid integer

 if (Serial.read() == '\n') //Done transmitting

 {

 //set LED

 analogWrite(RED, rval);

 analogWrite(GREEN, gval);

 analogWrite(BLUE, bval);

 }

 }

}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

//Single Character Control of an LED

#include <Servo.h>

const int SERVO=9; //Servo on Pin 9

int angle =0;

const int LED=8;

int val; //Holds incoming character

Servo myServo;

  void setup()

{

  myServo.attach(SERVO);

 Serial.begin(9600); //Serial Port at 9600 baud

 pinMode(LED, OUTPUT);

}

void loop()

{

  for (angle = 0; angle < 180; angle += 1)

  myServo.write(val); //sets the servo

 delay(15); //waits for the servo

 delay(2000);

  

  for(angle = 180; angle>=1; angle-=5)     // command to move from 180 degrees to 0 degrees 

  {                                

    myServo.write(val);              //command to rotate the servo to the specified angle

    delay(5);                       

  } 

    delay(2000);

 //Only act when angle is available

 if (Serial.available() > 0)

 {

 val = Serial.read(); //Read byte of data

 //Turn LED on

 if (val >= 0)

 {

 digitalWrite(LED, HIGH);

 Serial.println("LED ON");

 }

 //Turn LED off

 else if (val <= 0)

 {

 digitalWrite(LED, LOW);

 Serial.println("LED OFF");

 }

 }

}

/////////////////////////////////////////////////////////////////////////////////////////////////////////

Homework
#include <stdio.h>
#include <math.h>
#include <stdlib.h>

int main (void)

{
//Define variables
double alt = 0 ;
double v = 0 ;
double startt = 0 ;
double endt = 0 ;
double t = userstartt ;
double inct = 0 ;

//Print title
printf(" Balloon Information \n") ;

for(t = 60; t < 2880; t++) // Convert hours to minutes
{
//Tell and allow the user to input the start time
printf("Enter start time = ");
scanf("%lf", &startt);
//Tell and allow the user to input the end time
printf("Enter endtime = ");
scanf("%lf", &endt);
//Tell and allow the user to input the increment between line for time
printf("Enter Line Increment of Time = ");
scanf("%lf", &inct);


//Print table
printf(" Altitude Velocity \n");


//Find the balloon information for every 10 minutes and print
for(t = startt; t<= endt; t = t + inct)
{
alt = ((-0.12*(pow(t,4)) + (12*(pow(t,3))) - (380*(t*t)) + (4100*t) + 220));
v = ((-0.48*(pow(t,3)) + (36*(t*t)) - (760*t) + 4100));
printf(" %5.2lf m %5.2lf mps \n", alt, v/3600);
} //Close out second while loop
} //Close out first while loop

//Exit program
system("pause");
return (0);
}