Electronic Latin Dictionary: invalid conversion from int to char

Using Arduino Programming Questions
1

I am making an electronic Latin dictionary and I keep coming up with this message when I verify the code.

here is the (partial) code:

// Using Morse code (for lack of more I/O) and nine LEDs to make the translating of Latin easier 

const int LED_1 = 1; //LED 1 is connected to pin 1
const int LED_2 = 2; //LED 2 is connected to pin 2
const int LED_3 = 3; //LED 3 is connected to pin 3
const int LED_4 = 4; //LED 4 is connected to pin 4
const int LED_5 = 5; //LED 5 is connected to pin 5
const int LED_6 = 6; //LED 6 is connected to pin 6
const int LED_7 = 7; //LED 7 is connected to pin 7
const int LED_8 = 8; //LED 8 is connected to pin 8
const int LED_9 = 9; //LED 9 is connected to pin 9
const int buttonDash = 11; //The morse code dash button is connected to pin 11
const int buttonDot = 12; // the morse code dot button is connected to pin 12



void setup () {
  pinMode(LED_1, OUTPUT); // OUTPUT means a write and INPUT means a read
  pinMode(LED_2, OUTPUT);
  pinMode(LED_3, OUTPUT);
  pinMode(LED_4, OUTPUT);
  pinMode(LED_5, OUTPUT);
  pinMode(LED_6, OUTPUT);
  pinMode(LED_7, OUTPUT);
  pinMode(LED_8, OUTPUT);
  pinMode(LED_9, OUTPUT);
  pinMode(buttonDash, INPUT);
  pinMode(buttonDot, INPUT);
  String string1 = ((digitalRead(buttonDot), digitalRead(buttonDash), digitalRead(buttonDash), digitalRead(buttonDash), digitalRead(buttonDash), digitalRead(buttonDash), digitalRead(buttonDash))); //Amo: to love
  String string2 = ((digitalRead(buttonDot), digitalRead(buttonDash), digitalRead(buttonDot), digitalRead(buttonDot), digitalRead(buttonDot), digitalRead(buttonDash), digitalRead(buttonDash), digitalRead(buttonDot), digitalRead(buttonDot), digitalRead(buttonDot), digitalRead(buttonDash), digitalRead(buttonDash), digitalRead(buttonDash), digitalRead(buttonDot), digitalRead(buttonDash), digitalRead(buttonDot), digitalRead(buttonDash), digitalRead(buttonDash), digitalRead(buttonDash));//Laboro: to Work 
}

void loop () {

  if(string1 == HIGH) {
    digitalWrite((LED_2 = HIGH) && (LED_4 = HIGH) && (LED_5 = HIGH) && (LED_6 = HIGH) && (LED_7 = HIGH) && (LED_9 = HIGH));
    delay(500);
    digitalWrite((LED_2 = LOW) && (LED_4 = LOW) && (LED_5 = LOW) && LED_6 = LOW) && (LED_7 = LOW) && (LED_9 = LOW));
    delay(500);
    digitalWrite((LED_1 = HIGH) && (LED_3 = HIGH) && (LED_4 = LOW) && (LED_5 = HIGH) && (LED_6 = HIGH) && (LED_7 = 8) && (LED_8 = HIGH) && (LED_9 = HIGH)
    

Moderator edit: partial quote changed to code tags
2 
String string1 = ((digitalRead(buttonDot), digitalRead(buttonDash), digitalRead(buttonDash), digitalRead(buttonDash), digitalRead(buttonDash), digitalRead(buttonDash), digitalRead(buttonDash))); //Amo: to love

What is your intention there?

And here?

digitalWrite((LED_1 = HIGH) && (LED_3 = HIGH) && (LED_4 = LOW) && (LED_5 = HIGH) && (LED_6 = HIGH) && (LED_7 =  && (LED_8 = HIGH) && (LED_9 = HIGH)

Tell us what you want to achieve, not how you think you should do it.

3

i'm trying to read Morse code with a series of reads. you can't do that can you. how would you do that?

4

LED_1 = HIGH another thing you can't do is assign a value to a constant.

Break your problem down.
Figure out your input method first, debug it using simple serial prints, then apply it to your problem.

5

I have used three different brightly coloured DVD pens to mark today on my calendar.
I never thought I'd live to see the day when the phrases "Latin Dictionary" and "Morse Code" were used together.
Which brings me to the obvious question.
WHY?

Pete