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email_notifier.ino
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email_notifier.ino
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#include <Stepper.h> //call stepper library
#define STEPS 200 //the number of steps in one revolution
int ledPin = 13; // LED connected to digital pin 13
int val; // Value read from the serial port
int emailnumber = 1 ; //number of emails
int lastemailnumber = 0; //previous number of emails
//create instance of the stepper class,
//specifying the number of steps and the pins it's connected to
Stepper stepper(STEPS, 8, 9, 10, 11);
void setup()
{
pinMode(ledPin, OUTPUT); // sets the LED digital pin as output
Serial.begin(9600);
Serial.flush();
stepper.setSpeed(5); //set Stepper speed
}
void loop()
{
// Read from serial port
if (Serial.available())
{
val = Serial.read();
Serial.println(val); //val will be the ASCii value of the letter
//translate ASCii value of letters to number of emails
if (val == 97)
{
emailnumber = 1;
}
if (val == 98)
{
emailnumber = 2;
}
if (val == 99)
{
emailnumber = 3;
}
if (val == 100)
{
emailnumber = 4;
}
if (val == 101)
{
emailnumber = 5;
}
if (val == 102)
{
emailnumber = 6;
}
if (val == 110)
{
emailnumber = 0;
}
if (val == 109)
{
emailnumber = 7;
}
//check against the previous email number
if (emailnumber > lastemailnumber) //if there are more email
{
stepper.step(-50 * (emailnumber - lastemailnumber));
digitalWrite(ledPin, LOW);
}
else if (emailnumber == lastemailnumber) //if it's the same amount
{
digitalWrite(ledPin, LOW); //keep the LED off, you can't eat the M&Ms
}
else if (emailnumber < lastemailnumber) //if it's less email
{
digitalWrite(ledPin, HIGH); //turn the LED on, to indicate you can eat the M&Ms
}
lastemailnumber = emailnumber;
digitalWrite(8, LOW);
digitalWrite(9, LOW);
digitalWrite(10, LOW);
digitalWrite(11, LOW);
}
}