mc.ino

#define F_CPU 8000000UL      //8Mhz ATtiny44

const int ledPin1 =  0;      // the number of the first LED pin 

const int ledPin2 =  1;      // the number of the second LED pin 

const int buttonPin = 2;     // the number of the pushbutton pin

const int raspiPwr = 3;      // the raspberipi powerswitch pin

const int raspi = 4;         // the raspberipi shutdown signal pin

const int testled =7;        // Only test led

int buttonState = 0;         // variable for reading the pushbutton status

int raspiPwrState = 0;       // variable for reading if raspi PWR is turned on or off

void setup() {

  // initialize the LED pins as an output:

  pinMode(ledPin1, OUTPUT);  

  pinMode(ledPin2, OUTPUT);  

  // initialize the pushbutton pin as an input:

  pinMode(buttonPin, INPUT);

  pinMode(raspi, OUTPUT);

  pinMode(raspiPwr, OUTPUT);

  pinMode(testled, OUTPUT);

  digitalWrite(ledPin1, HIGH);

  digitalWrite(buttonPin, HIGH);

  digitalWrite(raspi, HIGH);

  digitalWrite(raspiPwr, LOW);

  /*digitalWrite(testled, HIGH);

  delay(2000);

  digitalWrite(testled, LOW);*/  

}

void loop() {

 // read the state of the pushbutton and raspiPwr value:

  buttonState = digitalRead(buttonPin);

  raspiPwrState = digitalRead(raspiPwr);

  // check if the pushbutton is pressed.

  // if it is, the buttonState is LOW :

  if (buttonState == LOW) {

    delay(500);

  // turn raspi on:

  if (raspiPwrState == LOW) {

    digitalWrite(ledPin1, LOW);

    digitalWrite(ledPin2, HIGH);

    digitalWrite(raspi, HIGH);

    digitalWrite(raspiPwr, HIGH);

  }

  // turn Raspi off:

  if (raspiPwrState == HIGH) {

    digitalWrite(ledPin1, HIGH);

    digitalWrite(ledPin2, LOW);

    digitalWrite(raspi, LOW);

    delay(20000); // time to shutdown the raspberrypi

    digitalWrite(raspi, HIGH);

    digitalWrite(raspiPwr, LOW);

  } 

}  // buttonState

}  // loop