Toggle an LED with the RESET button for quick use cases

1#include <EEPROM.h>
2
3#define LED_PIN 13
4#define EEPROM_ADDRESS   0
5
6void setup(){
7  pinMode(LED_PIN, OUTPUT);
8
9  Serial.begin(9600);
10
11   if (EEPROM.read(EEPROM_ADDRESS) == 0){
12    EEPROM.put(EEPROM_ADDRESS, 1);
13     digitalWrite(LED_PIN, HIGH);
14    Serial.println("LED ON");
15  } else   {
16    EEPROM.put(EEPROM_ADDRESS, 0);
17    digitalWrite(LED_PIN, LOW);
18    Serial.println("LED   OFF");
19  }
20}
21
22void loop(){}

1#include <EEPROM.h>
2
3#define LED_PIN 13
4#define EEPROM_ADDRESS  0
5
6void setup(){
7  pinMode(LED_PIN, OUTPUT);
8
9  Serial.begin(9600);
10
11  if (EEPROM.read(EEPROM_ADDRESS) == 0){
12    EEPROM.put(EEPROM_ADDRESS, 1);
13    digitalWrite(LED_PIN, HIGH);
14    Serial.println("LED ON");
15  } else  {
16    EEPROM.put(EEPROM_ADDRESS, 0);
17    digitalWrite(LED_PIN, LOW);
18    Serial.println("LED  OFF");
19  }
20}
21
22void loop(){}