ON/OFF/ON Mini Rocker Switch

Projects General Guidance
1

How to use an ON-OFF-ON switch to switch on 2 different LEDs?

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2

yes

3

the switch stays hard..sorry bad english

4

This is NOT a tutorial.

5

I don't understand what you mean. can you give examples. this first time I use Arduino for a school project. I am sincerely sorry for causing any problem.

6

:slight_smile: :slight_smile: :)...Thank you

7

Hi..do you think my coding is correct?

const int buttonPin1 = 2; // the number of the pushbutton pin
const int buttonPin2 = 3;
const int ledPin1 = 13; // the number of the LED pin
const int ledPin2 = 12;

// variables will change:
int buttonState1 = 0; // variable for reading the pushbutton status
int buttonState2 = 0;

void setup() {
// initialize the LED pin as an output:
pinMode(ledPin1, OUTPUT);
// initialize the pushbutton pin as an input:
pinMode(buttonPin1, INPUT);
pinMode(ledPin2, OUTPUT);
// initialize the pushbutton pin as an input:
pinMode(buttonPin2, INPUT);
}

void loop() {
// read the state of the pushbutton value:
buttonState1 = digitalRead(buttonPin1);

// check if the pushbutton is pressed. If it is, the buttonState is HIGH:
if (buttonState1 == HIGH) {
// turn LED on:
digitalWrite(ledPin1, HIGH);
} else {
// turn LED off:
digitalWrite(ledPin1, LOW);
}
if (buttonState2 == HIGH) {
// turn LED on:
digitalWrite(ledPin2, HIGH);
} else {
// turn LED off:
digitalWrite(ledPin2, LOW);
}
}

8

These could all be byte, vs int, to take up less space in memory. Anything that will stay 0 to 255 can be an byte.

const int buttonPin1 = 2;     // the number of the pushbutton pin
const int buttonPin2 = 3;
const int ledPin1 =  13;      // the number of the LED pin
const int ledPin2 =  12;

// variables will change:
int buttonState1 = 0;         // variable for reading the pushbutton status
int buttonState2 = 0;

You also need to read buttonPin2:

 // read the state of the pushbutton value:
  buttonState1 = digitalRead(buttonPin1);

as you are acting on its state:

    if (buttonState2 == HIGH) {
9

Hi..do you think my coding is correct?

No, it is way too long

const byte buttonPin1 = 2;
const byte buttonPin2 = 3;
const byte ledPin1 =  13;  
const byte ledPin2 =  12;

void setup() 
{
  pinMode(ledPin1, OUTPUT);
  pinMode(ledPin2, OUTPUT);
  pinMode(buttonPin1, INPUT);
  pinMode(buttonPin2, INPUT);
}

void loop() {
    digitalWrite(ledPin1, digitalRead(buttonPin1));
    digitalWrite(ledPin2, digitalRead (buttonPin2));
}
10

thank guys..I can`t say I fully understand but it ok...try my best