setting up sleep for the arduino, adding mathod to calulate persentage of the potty

src/arduinoNano/arduinoNano.ino

@@ -1,10 +1,16 @@
+#include <avr/sleep.h>
 
+
+float damppotty;
 void setup() {
   pinMode(2, INPUT);
+  pinMode(A2, INPUT);
+  pinMode(A4, INPUT);
   pinMode(9, OUTPUT);
   pinMode(7, OUTPUT);
   pinMode(5, OUTPUT);
-   Serial.begin(9600);
+  Serial.begin(19200);
+  digitalWrite(9 ,HIGH);
 
 
 }
@@ -13,4 +19,45 @@ void setup() {
 void loop() {
   Serial.println(digitalRead(2));
   delay(20);
+  if (digitalRead(2) == 1) {
+    sleep();
+  } else {
+    Serial.println("Skipping sleep");
+  }
+  Serial.println("continuing Main");
+ delay(100);
+ Serial.println(calculateTargetDampness() ,4);
+}
+
+float calculateTargetDampness(){
+ damppotty = analogRead(A2);
+  return damppotty / 454 ;
+}
+
+void sleep() {
+  digitalWrite(9, LOW);
+  Serial.println("Going to sleep");
+  delay(10);
+  sleep_enable();
+  attachInterrupt(0, wakeUp, FALLING);
+  set_sleep_mode(SLEEP_MODE_PWR_DOWN);
+  delay(10);
+  sleep_cpu();
+}
+
+void wakeUp() {
+  // detachInterrupt(0);
+  sleep_disable();
+  Serial.println("woke up");
+  //afterWakeup();
+}
+
+void wait(int i){
+  // A finction for consistent delays (only one point to adjust delay when clock speed is lowerd)
+   delay(i);
+  }
+
+  void afterWakeup(){
+    delay(100);
+    digitalWrite(9,HIGH);
     }

src/arduinoNano/calibrateSleep.ino

@@ -0,0 +1 @@
+