# EEPROM memory save & reset save memory by one push switch

**URL:** <https://forum.arduino.cc/t/eeprom-memory-save-reset-save-memory-by-one-push-switch/914246>\
**Category:** Programming\
**Created:** [October 12, 2021, 6:54pm UTC](https://forum.arduino.cc/t/eeprom-memory-save-reset-save-memory-by-one-push-switch/914246 "2021-10-12T18:54:36Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![saddamdssr](https://avatars.discourse-cdn.com/v4/letter/s/4491bb/32.png) [@saddamdssr](https://forum.arduino.cc/u/saddamdssr)\
**Post date:** [October 12, 2021, 6:54pm UTC](https://forum.arduino.cc/t/eeprom-memory-save-reset-save-memory-by-one-push-switch/914246/1 "2021-10-12T18:54:36Z")

</div>

Hello Exparte's,

Hope you are all well.

I'm trying to make some arduino customize project but faching some problem to ready the code.

here is the code, where I want to save the last valu of the six LED's (LED 11, LED12, LED13, LED 14 LED15, LED16 ) LED's in EEPROM memory.

and also I need a special key for reset all the save data value's, then start the functin at it's starting possition again.

Please help me Exparte's, to complete the code.

Code:

const int BUTTON1 = 2;  
const int BUTTON2 = 3;  
const int BUTTON3 = 4;  
const int BUTTON4 = 5;  
const int BUTTON5 = 6;  
const int BUTTON6 = 7;  
const int LED1 = 8;  
const int LED2 = 9;  
const int LED3 = 10;  
const int LED4 = 11;  
const int LED5 = 12;  
const int LED6 = 13;  
const int LED11 = A0;  
const int LED12 = A1;  
const int LED13 = A2;  
const int LED14 = A3;  
const int LED15 = A4;  
const int LED16 = A5;  
int BUTTONstate1 = 0;  
int BUTTONstate2 = 0;  
int BUTTONstate3 = 0;  
int BUTTONstate4 = 0;  
int BUTTONstate5 = 0;  
int BUTTONstate6 = 0;

void setup()  
{  
pinMode(BUTTON1, INPUT);  
pinMode(BUTTON2, INPUT);  
pinMode(BUTTON3, INPUT);  
pinMode(BUTTON4, INPUT);  
pinMode(BUTTON5, INPUT);  
pinMode(BUTTON6, INPUT);  
pinMode(LED1, OUTPUT);  
pinMode(LED2, OUTPUT);  
pinMode(LED3, OUTPUT);  
pinMode(LED4, OUTPUT);  
pinMode(LED5, OUTPUT);  
pinMode(LED6, OUTPUT);

pinMode(LED11, OUTPUT);  
pinMode(LED12, OUTPUT);  
pinMode(LED13, OUTPUT);  
pinMode(LED14, OUTPUT);  
pinMode(LED15, OUTPUT);  
pinMode(LED16, OUTPUT);

}

void loop()  
{  
digitalWrite(LED11, HIGH);  
digitalWrite(LED12, HIGH);  
digitalWrite(LED13, HIGH);  
digitalWrite(LED14, HIGH);  
digitalWrite(LED15, HIGH);  
digitalWrite(LED16, HIGH);

LOOOP:

BUTTONstate1 = digitalRead(BUTTON1);  
BUTTONstate2 = digitalRead(BUTTON2);  
BUTTONstate3 = digitalRead(BUTTON3);  
BUTTONstate4 = digitalRead(BUTTON4);  
BUTTONstate5 = digitalRead(BUTTON5);  
BUTTONstate6 = digitalRead(BUTTON6);

if (BUTTONstate1 == HIGH && BUTTONstate2 == HIGH )  
{  
digitalWrite(LED1, HIGH);  
digitalWrite(LED2, HIGH);  
digitalWrite(LED11, LOW);  
digitalWrite(LED12, LOW);

}  
else if (BUTTONstate1 == HIGH && BUTTONstate3 == HIGH )  
{  
digitalWrite(LED1, HIGH);  
digitalWrite(LED2, HIGH);  
digitalWrite(LED3, HIGH);  
digitalWrite(LED11, LOW);  
digitalWrite(LED12, LOW);  
digitalWrite(LED13, LOW);  
}  
else if (BUTTONstate1 == HIGH && BUTTONstate4 == HIGH )  
{  
digitalWrite(LED1, HIGH);  
digitalWrite(LED2, HIGH);  
digitalWrite(LED3, HIGH);  
digitalWrite(LED4, HIGH);  
digitalWrite(LED11, LOW);  
digitalWrite(LED12, LOW);  
digitalWrite(LED13, LOW);  
digitalWrite(LED14, LOW);

}  
else if (BUTTONstate1 == HIGH && BUTTONstate5 == HIGH )  
{  
digitalWrite(LED1, HIGH);  
digitalWrite(LED2, HIGH);  
digitalWrite(LED3, HIGH);  
digitalWrite(LED4, HIGH);  
digitalWrite(LED5, HIGH);  
digitalWrite(LED11, LOW);  
digitalWrite(LED12, LOW);  
digitalWrite(LED13, LOW);  
digitalWrite(LED14, LOW);  
digitalWrite(LED15, LOW);  
}  
else if (BUTTONstate1 == HIGH && BUTTONstate6 == HIGH )  
{  
digitalWrite(LED1, HIGH);  
digitalWrite(LED2, HIGH);  
digitalWrite(LED3, HIGH);  
digitalWrite(LED4, HIGH);  
digitalWrite(LED5, HIGH);  
digitalWrite(LED6, HIGH);  
digitalWrite(LED11, LOW);  
digitalWrite(LED12, LOW);  
digitalWrite(LED13, LOW);  
digitalWrite(LED14, LOW);  
digitalWrite(LED15, LOW);  
digitalWrite(LED16, LOW);  
}  
else if (BUTTONstate2 == HIGH && BUTTONstate3 == HIGH )  
{

digitalWrite(LED2, HIGH);  
digitalWrite(LED3, HIGH);  
digitalWrite(LED12, LOW);  
digitalWrite(LED13, LOW);

}  
else if (BUTTONstate2 == HIGH && BUTTONstate4 == HIGH )  
{

digitalWrite(LED2, HIGH);  
digitalWrite(LED3, HIGH);  
digitalWrite(LED4, HIGH);  
digitalWrite(LED12, LOW);  
digitalWrite(LED13, LOW);  
digitalWrite(LED14, LOW);

}  
else if (BUTTONstate2 == HIGH && BUTTONstate5 == HIGH )  
{

digitalWrite(LED2, HIGH);  
digitalWrite(LED3, HIGH);  
digitalWrite(LED4, HIGH);  
digitalWrite(LED5, HIGH);  
digitalWrite(LED12, LOW);  
digitalWrite(LED13, LOW);  
digitalWrite(LED14, LOW);  
digitalWrite(LED15, LOW);

}  
else if (BUTTONstate2 == HIGH && BUTTONstate6 == HIGH )  
{

digitalWrite(LED2, HIGH);  
digitalWrite(LED3, HIGH);  
digitalWrite(LED4, HIGH);  
digitalWrite(LED5, HIGH);  
digitalWrite(LED6, HIGH);  
digitalWrite(LED12, LOW);  
digitalWrite(LED13, LOW);  
digitalWrite(LED14, LOW);  
digitalWrite(LED15, LOW);  
digitalWrite(LED16, LOW);  
}  
else if (BUTTONstate3 == HIGH && BUTTONstate4 == HIGH )  
{

digitalWrite(LED3, HIGH);  
digitalWrite(LED4, HIGH);  
digitalWrite(LED13, LOW);  
digitalWrite(LED14, LOW);

}  
else if (BUTTONstate3 == HIGH && BUTTONstate5 == HIGH )  
{

digitalWrite(LED3, HIGH);  
digitalWrite(LED4, HIGH);  
digitalWrite(LED5, HIGH);  
digitalWrite(LED13, LOW);  
digitalWrite(LED14, LOW);  
digitalWrite(LED15, LOW);

}  
else if (BUTTONstate3 == HIGH && BUTTONstate6 == HIGH )  
{

digitalWrite(LED3, HIGH);  
digitalWrite(LED4, HIGH);  
digitalWrite(LED5, HIGH);  
digitalWrite(LED6, HIGH);  
digitalWrite(LED13, LOW);  
digitalWrite(LED14, LOW);  
digitalWrite(LED15, LOW);  
digitalWrite(LED16, LOW);  
}  
else if (BUTTONstate4 == HIGH && BUTTONstate5 == HIGH )  
{

digitalWrite(LED4, HIGH);  
digitalWrite(LED5, HIGH);  
digitalWrite(LED14, LOW);  
digitalWrite(LED15, LOW);

}  
else if (BUTTONstate4 == HIGH && BUTTONstate6 == HIGH )  
{

digitalWrite(LED4, HIGH);  
digitalWrite(LED5, HIGH);  
digitalWrite(LED6, HIGH);  
digitalWrite(LED14, LOW);  
digitalWrite(LED15, LOW);  
digitalWrite(LED16, LOW);  
}  
else if (BUTTONstate5 == HIGH && BUTTONstate6 == HIGH )  
{

digitalWrite(LED5, HIGH);  
digitalWrite(LED6, HIGH);  
digitalWrite(LED15, LOW);  
digitalWrite(LED16, LOW);  
}

else if (BUTTONstate1 == HIGH)  
{  
digitalWrite(LED1, HIGH);  
digitalWrite(LED11, LOW);  
}

else if (BUTTONstate2 == HIGH)  
{  
digitalWrite(LED2, HIGH);  
digitalWrite(LED12, LOW);  
}  
else if (BUTTONstate3 == HIGH)  
{  
digitalWrite(LED3, HIGH);  
digitalWrite(LED13, LOW);

}  
else if (BUTTONstate4 == HIGH)  
{  
digitalWrite(LED4, HIGH);  
digitalWrite(LED14, LOW);  
}  
else if (BUTTONstate5 == HIGH)  
{  
digitalWrite(LED5, HIGH);  
digitalWrite(LED15, LOW);  
}  
else if (BUTTONstate6 == HIGH)  
{  
digitalWrite(LED6, HIGH);  
digitalWrite(LED16, LOW);  
}

else{

digitalWrite(LED1, LOW);  
digitalWrite(LED2, LOW);  
digitalWrite(LED3, LOW);  
digitalWrite(LED4, LOW);  
digitalWrite(LED5, LOW);  
digitalWrite(LED6, LOW);

}  
delay(1500);

goto LOOOP;

}

---

<div class="post-metadata">

**Author:** ![anon73444976](https://avatars.discourse-cdn.com/v4/letter/a/439d5e/32.png) [@anon73444976](https://forum.arduino.cc/u/anon73444976)\
**Post date:** [October 12, 2021, 6:58pm UTC](https://forum.arduino.cc/t/eeprom-memory-save-reset-save-memory-by-one-push-switch/914246/2 "2021-10-12T18:58:53Z")

</div>

Your code is too long.

If you start putting numeric suffices on variable, it's usually a sign that you should be looking at using arrays.

If you start putting gotos in your code, it's often a sign that you're about to attract a lot of flak.

---

<div class="post-metadata">

**Author:** ![Idahowalker](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/idahowalker/32/238858_2.png) [@Idahowalker](https://forum.arduino.cc/u/Idahowalker)\
**Post date:** [October 12, 2021, 7:34pm UTC](https://forum.arduino.cc/t/eeprom-memory-save-reset-save-memory-by-one-push-switch/914246/3 "2021-10-12T19:34:59Z")

</div>

FLACK!!

Code tags?

Look up State Machine using the "Search on Arduino Forum" search box.

Oh.

> [@saddamdssr](#):
>
> goto LOOOP;

Really? Using a goto? Flack! Flack! Flack!

How's it going on that state machine thingy?

---

<div class="post-metadata">

**Author:** ![Idahowalker](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/idahowalker/32/238858_2.png) [@Idahowalker](https://forum.arduino.cc/u/Idahowalker)\
**Post date:** [October 12, 2021, 7:39pm UTC](https://forum.arduino.cc/t/eeprom-memory-save-reset-save-memory-by-one-push-switch/914246/4 "2021-10-12T19:39:28Z")

</div>

> [@saddamdssr](#):
>
> ```arduino
> digitalWrite(LED11, HIGH);
> digitalWrite(LED12, HIGH);
> digitalWrite(LED13, HIGH);
> digitalWrite(LED14, HIGH);
> digitalWrite(LED15, HIGH);
> digitalWrite(LED16, HIGH);
> 
> ```

If you only want to run that once put it at the end of your setup() function, then get rid of goto.

Oh, notice the use of code tags?

---

<div class="post-metadata">

**Author:** ![ruilviana](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/ruilviana/32/722429_2.png) [@ruilviana](https://forum.arduino.cc/u/ruilviana)\
**Post date:** [October 13, 2021, 8:04pm UTC](https://forum.arduino.cc/t/eeprom-memory-save-reset-save-memory-by-one-push-switch/914246/5 "2021-10-13T20:04:30Z")

</div>

> [@saddamdssr](#):
>
> I want to save the last valu of the six LED's (LED 11, LED12, LED13, LED 14 LED15, LED16 ) LED's in EEPROM memory.

Hi @saddamdssr ,

I didn't quite understand your difficulty.  
You say:  
" I want to save the last value of the six LED's (LED 11, LED12, LED13, LED 14, LED15, LED16 ) LED's in EEPROM memory."

When do you want to save this data in EEPROM?

The arduino EEPROM has a limit of around 100,000 writes. (or would it be 10,000?).  
So you can't keep recording all the time, because if each cycle of the program lasts a little more than 1500 ms, 100,000 recordings will be made in approximately 18 hours.

I modified your program to have the ports of the leds in a variable type int.  
This variable you can write to EEPROM using the EEPROM.put(addr, Data) function.

RV mineirin

```arduino

byte btBit = 0;
unsigned int ledBit = 0x0FC0;
//-----------------------------------------------------------------------
void setup()
{
// Serial.begin(115200);
  for ( int i = 2; i < 8; i++)
  {
    pinMode(i, INPUT_PULLUP);
  }
  for ( int i = 8; i < 20; i++)
  {
    pinMode(i, OUTPUT);
  }
     //Serial.print("ledBit "); Serial.print( ledBit,BIN );
}
//-----------------------------------------------------------------------
void loop()
{
  // button 6 5 4 3 2 1
  // Pin 7 6 5 4 3 2
  // btBit 0 0 0 0 0 0 0 0

  // Led y y y y 16 15 14 13 12 11 6 5 4 3 2 1
  // Pin x x x x 19 18 17 16 15 14 13 12 11 10 9 8
  // ledBit 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

  ledBit = 0x0FC0;

  for ( int i = 2; i < 8; i++)
  {
    if (digitalRead(i))
    //if (!digitalRead(i))
      bitSet(btBit, i - 2);
    else
      bitClear(btBit, i - 2);
  }
  //Serial.print("Button "); Serial.println(btBit, BIN);
  switch (btBit)
  {
    case 0x03: // BT 1 and 2 // btBit 0 0 0 0 0 0 1 1
      ledBit |= 0x0003; // On LED 1,2 // ledBit 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
      ledBit &= 0x0F3F; // Off LED 11,12 // !ledBit 0 0 0 0 1 1 1 1 0 0 1 1 1 1 1 1
      break;

    case 0x05: // BT 1 and 3 // btBit 0 0 0 0 0 1 0 1
      ledBit |= 0x0007; // On LED 1,2,3 // ledBit 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1
      ledBit &= 0x0E3F; // Off LED 11,12,13 // !ledBit 0 0 0 0 1 1 1 0 0 0 1 1 1 1 1 1
      break;

    case 0x09: // BT 1 and 4 // btBit 0 0 0 0 1 0 0 1
      ledBit |= 0x000F; // On LED 1,2,3,4 // ledBit 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1
      ledBit &= 0x0C3F; // Off LED 11,12,13,14 // !ledBit 0 0 0 0 1 1 0 0 0 0 1 1 1 1 1 1
      break;

    case 0x11: // BT 1 and 5 // btBit 0 0 0 1 0 0 0 1
      ledBit |= 0x001F; // On LED 1,2,3,4,5 // ledBit 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1
      ledBit &= 0x083F; // Off LED 11,12,13,14,15 // !ledBit 0 0 0 0 1 0 0 0 0 0 1 1 1 1 1 1
      break;

    case 0x21: // BT 1 and 6 // btBit 0 0 1 0 0 0 0 1
      ledBit |= 0x003F; // On LED 1,2,3,4,5,6 // ledBit 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1
      ledBit &= 0x03FF; // Off LED 11,12,13,14,15,16 // !ledBit 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1
      break;

    case 0x06: // BT 2 and 3 // btBit 0 0 0 0 0 1 1 0
      ledBit |= 0x0006; // On LED 2,3 // ledBit 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0
      ledBit &= 0x0E7F; // Off LED 12,13 // !ledBit 0 0 0 0 1 1 1 0 0 1 1 1 1 1 1 1
      break;

    case 0x0A: // BT 2 and 4 // btBit 0 0 0 0 1 0 1 0
      ledBit |= 0x000E; // On LED 2,3,4 // ledBit 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0
      ledBit &= 0x0C7F; // Off LED 12,13,14 // !ledBit 0 0 0 0 1 1 0 0 0 1 1 1 1 1 1 1
      break;

    case 0x12: // BT 2 and 5 // btBit 0 0 0 1 0 0 1 0
      ledBit |= 0x001E; // On LED 2,3,4,5 // ledBit 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0
      ledBit &= 0x087F; // Off LED 12,13,14,15 // !ledBit 0 0 0 0 1 0 0 0 0 1 1 1 1 1 1 1
      break;

    case 0x22: // BT 2 and 6 // btBit 0 0 1 0 0 0 1 0
      ledBit |= 0x003E; // On LED 2,3,4,5,6 // ledBit 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 0
      ledBit &= 0x007F; // Off LED 12,13,14,15,16 // !ledBit 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1
      break;

    case 0x0C: // BT 3 and 4 // btBit 0 0 0 0 1 1 0 0
      ledBit |= 0x000C; // On LED 3,4 // ledBit 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0
      ledBit &= 0x0CFF; // Off LED 13,14 // !ledBit 0 0 0 0 1 1 0 0 1 1 1 1 1 1 1 1
      break;

    case 0x14: // BT 3 and 5 // btBit 0 0 0 1 0 1 0 0
      ledBit |= 0x001C; // On LED 3,4,5 // ledBit 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0
      ledBit &= 0x08FF; // Off LED 13,14,15 // !ledBit 0 0 0 0 1 0 0 0 1 1 1 1 1 1 1 1
      break;

    case 0x24: // BT 3 and 6 // btBit 0 0 1 0 0 1 0 0
      ledBit |= 0x003C; // On LED 3,4,5,6 // ledBit 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0
      ledBit &= 0x00FF; // Off LED 13,14,15,16 // !ledBit 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
      break;

    case 0x18: // BT 4 and 5 // btBit 0 0 0 1 1 0 0 0
      ledBit |= 0x0018; // On LED 4,5 // ledBit 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0
      ledBit &= 0x09FF; // Off LED 14,15 // !ledBit 0 0 0 0 1 0 0 1 1 1 1 1 1 1 1 1
      break;

    case 0x28: // BT 4 and 6 // btBit 0 0 1 0 1 0 0 0
      ledBit |= 0x0038; // On LED 4,5,6 // ledBit 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0
      ledBit &= 0x01FF; // Off LED 14,15,16 // !ledBit 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1
      break;

    case 0x30: // BT 5 and 6 // btBit 0 0 1 1 0 0 0 0
      ledBit |= 0x0030; // On LED 5,6 // ledBit 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0
      ledBit &= 0x03FF; // Off LED 15,16 // !ledBit 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1
      break;

    case 0x01: // BT 1 // btBit 0 0 0 0 0 0 0 1
      ledBit |= 0x0001; // On LED 1 // ledBit 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
      ledBit &= 0x0FBF; // Off LED 11 // !ledBit 0 0 0 0 1 1 1 1 1 0 1 1 1 1 1 1
      break;

    case 0x02: // BT 2 // btBit 0 0 0 0 0 0 1 0
      ledBit |= 0x0002; // On LED 2 // ledBit 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
      ledBit &= 0x0F7F; // Off LED 12 // !ledBit 0 0 0 0 1 1 1 1 0 1 1 1 1 1 1 1
      break;

    case 0x04: // BT 3 // btBit 0 0 0 0 0 1 0 0
      ledBit |= 0x0004; // On LED 3 // ledBit 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0
      ledBit &= 0x07FF; // Off LED 13 // !ledBit 0 0 0 0 1 1 1 0 1 1 1 1 1 1 1 1
      break;

    case 0x08: // BT 4 // btBit 0 0 0 0 1 0 0 0
      ledBit |= 0x0008; // On LED 4 // ledBit 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0
      ledBit &= 0x0DFF; // Off LED 14 // !ledBit 0 0 0 0 1 1 0 1 1 1 1 1 1 1 1 1
      break;

    case 0x10: // BT 5 // btBit 0 0 0 1 0 0 0 0
      ledBit |= 0x0010; // On LED 5 // ledBit 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0
      ledBit &= 0x0BFF; // Off LED 15 // !ledBit 0 0 0 0 1 0 1 1 1 1 1 1 1 1 1 1
      break;

    case 0x20: // BT 6 // btBit 0 0 0 1 0 0 0 0
      ledBit |= 0x0020; // On LED 6 // ledBit 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0
      ledBit &= 0x07FF; // Off LED 16 // !ledBit 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1
      break;

    default:
      ledBit &= 0x0FC0; // Off LED 1,2,3,4,5,6 // !ledBit 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0
      break;
  }
  //Serial.print("LED "); Serial.println(ledBit, BIN);
  for (int i = 8; i < 20; i++)
  {
    //Serial.print("Port "); Serial.print( i );
    //Serial.print(" READ "); Serial.println(bitRead(ledBit, i - 8));
    digitalWrite(i, bitRead(ledBit, i - 8));
  }
  delay(1500);
}

```

---

<div class="post-metadata">

**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\
**Post date:** [April 11, 2022, 8:04pm UTC](https://forum.arduino.cc/t/eeprom-memory-save-reset-save-memory-by-one-push-switch/914246/6 "2022-04-11T20:04:42Z")

</div>

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