Day 5: Analog Sensors | Repetition Statements

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

int main(void){
float pi=3.14159265;
float wave1p,wave2p,wave1h,wave2h;
float wavelength1,wavelength2,newp,timeinc;
float newheight;
//Read period and wave height for wave 1
printf("Input the period and wave height of wave 1\n");
scanf("%f %f\n",&wave1p,&wave1h);

//Read period and wave height for wave 2
printf("Input the period and wave height of wave 2\n");
scanf("%f %f\n",&wave2p,&wave2h);

//Compute and print wavelength for each wave
wavelength1=5.13*pow(wave1p,2);
wavelength2=5.13*pow(wave2p,2);
printf("Wave 1 Wavelength: %5.3f \n Wave 2 Wavelength: %5.3f \n",wavelength1,wavelength2);
//Set new period to product of wave periods
newp=wave1p*wave2p;
timeinc=newp/200;

float time=0, wavemax=0, steps=0, sum;
while(steps<=199)
{
newheight=(wave1h+wave2h)*sin(2*pi*time*(1/newp));
if (newheight>wavemax)
{
wavemax=newheight;
}
time=time+timeinc;
steps++;
}
printf("Wavemax: %3.4f\n",wavemax);
return 0;

}

Homework

Hardware

int tempPin = 1;

int val;

int red=11;

int green=10;

int blue=9;

//int temp=0;

void setup() {

  // put your setup code here, to run once:

  pinMode(tempPin,INPUT);

  pinMode(red,OUTPUT);

  pinMode(green,OUTPUT);

  pinMode(blue,OUTPUT);

  Serial.begin(9600);

}

void loop() {

  // put your main code here, to run repeatedly:

  val=analogRead(tempPin);

  float mv=val*5000.0/1023;

  float temp=(mv-500.0)/10;

  Serial.println(val);

  Serial.println("Temperature");

  Serial.println(temp);

  delay(500);

  if(temp>22)

  {

    digitalWrite(red,HIGH);

    digitalWrite(green,LOW);

    digitalWrite(blue,LOW);

  }

  if(temp>=18 && temp<=22)

  {

    digitalWrite(red,LOW);

    digitalWrite(green,HIGH);

    digitalWrite(blue,LOW);

  }

  if(temp<18)

  {

    digitalWrite(red,LOW);

    digitalWrite(green,LOW);

    digitalWrite(blue,HIGH);

  }

}