#include <EEPROM.h>
#define LED 5
#define BUTTON 6
byte laststate;
byte buttonstate;
byte ledstate = LOW;
void setup() {
pinMode(LED, OUTPUT);
pinMode(BUTTON, INPUT_PULLUP);
checkstate();
 }

void loop() {

  laststate = buttonstate;
  buttonstate = digitalRead(BUTTON); 
  if(laststate == HIGH && buttonstate == LOW) { //makes the button toggle based off previous and current state of button
    ledstate = !ledstate;
    digitalWrite(LED, ledstate); 
    EEPROM.write(0,ledstate); //writes the ledstate to eeprom
  }
}
void checkstate()
{
ledstate = EEPROM.read(0); //reads the first eeprom mem
if (ledstate == HIGH) //changes the ledstate based on the variable
{
  digitalWrite(LED, HIGH);
}
else
{
  digitalWrite(LED, LOW);
}

}