Repeat a certain part of code.

Using Arduino Programming Questions
#1

So… I’m a newbie trying to make my first scratch project and I’m Stuck. Can someone diagnose the code please? It be great if i could have some help.
Code:

// This sketch is made by Naquino14. This code is an H-bridge motor driver
const int codeMaximum = 5;
int codeState = 0;
const int button = 6;
int buttonState = 0;
int buttonSwitch = 0;
const int port1 = 2;
const int port2 = 3;
const int port3 = 4;
const int port4 = 5;

void setup() {
  pinMode(button, INPUT);
  pinMode(port1, OUTPUT);
  pinMode(port2, OUTPUT);
  pinMode(port3, OUTPUT);
  pinMode(port4, OUTPUT);
  Serial.begin(9600);
  Serial.println("Source is 12V DC");
}

void loop() {
  buttonState = digitalRead(button); //Read buttonState
  if (buttonState = 1) { //Driver mode 1
    digitalWrite(port1, HIGH);
    delay(5000);
    digitalWrite(port1, LOW);
    delay(500);
    buttonState++;
    Serial.println(buttonState);
    delay(50);
  }
  if (buttonState = 2); { //Driver mode 2
    digitalWrite(port2, HIGH);
    delay(5000);
    digitalWrite(port2, LOW);
    delay(500);
    buttonState++;
    Serial.println(buttonState);
    delay(50);
  }
  if (buttonState = 3); { //Driver mode 3
    digitalWrite(port3, HIGH);
    delay(5000);
    digitalWrite(port3, LOW);
    delay(500);
    buttonState++;
    Serial.println(buttonState);
    delay(50);
   }
   if (buttonState = 4); { //Driver mode 4
     digitalWrite(port4, HIGH);
     delay(5000);
     digitalWrite(port4, LOW);
     delay(500);
     buttonState++;
     Serial.println(buttonState);
     delay(50);
   }
   if (buttonState = 5); { //Reset Code
     buttonState--;
     delay(10);
     buttonState--;
     delay(10);
     buttonState--;
     delay(10);
     buttonState--;
     delay(10);
     buttonState--;
     delay(10);
     Serial.print(buttonState);
   }
   codeState++;
   if (codeState = codeMaximum) { //Stops code after 5 presses
     exit(0);
   }
   buttonState = digitalRead(button);
}

Schematic:
See attached

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1111111111111111.PNG790×513 22.5 KB

Motor_driver__Toggle_.ino (1.74 KB)

#2 
  if (buttonState = 1)

Look up the difference between an assignment "=" and a comparison "==".

Pete

#3

Then, once you've done that and understand the difference between the two, perhaps you could explain what your code is supposed to do and what it is actually doing.

Pete

#4

This if statement you got right

if (buttonState = 1) { //Driver mode 1
...
...

All the others you did get wrong :wink: E.g.

if (buttonState = 2); { //Driver mode 2
...
...

The semi-colon terminates the if statement and hence the code block after it will unconditionally be executed.

#5