/*  
  robotic replacement of my beloved cat Smudge (2007-2022) with PIR motion sensor
*/
 
#include "SdFat.h"

#define SPI_SPEED SD_SCK_MHZ(4)
#define CS_PIN 10

SdFat sd;

int led = 13;
int sensor = 2;
int motionStatus = 0;

void setup() {
  pinMode(led, OUTPUT);
  pinMode(sensor, INPUT);
  Serial.begin(9600);
}

void loop() {
  motionStatus = digitalRead(sensor);
  if(motionStatus == HIGH) {
    Serial.println("Motion detected.");
    tone(8, 200, 250);
    digitalWrite(led, HIGH);
    delay(100);
  } else {
    Serial.println("No motion detected.");
    digitalWrite(led, LOW);
    delay(100);
  }
}