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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);
  }
}
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