Not all ARDUINO UNO Pin work

[George]

Hi dear,

This is a test to see wich ARDUINO UNO pin should I use for input.
I don't understand why only ARDUINO pin 2, 4 and 7 work correctly
for input.

When you say :
cont int buttonPin = 3

Pin3 doesn't work as an input. But Pin2 does

Here's the code and the Circuit in attachment.
Best Regards
George

const int buttonAPin = 3; //premier button RED
const int buttonBPin = 4; //deuxieme button YELLOW
const int buttonCPin = 5; //troisieme button GREEN

const int ledAPin = 8;
const int ledBPin = 9;
const int ledCPin = 10;

// Variable will change:
int buttonAState = 0;
int buttonBState = 0;
int buttonCState = 0;

void setup() {
// Initialize the LED pinas an output:
pinMode(ledAPin, OUTPUT);
pinMode(ledBPin, OUTPUT);
pinMode(ledCPin, OUTPUT);
}

void loop() {
// put your main code here, to run repeatedly:
buttonAState = digitalRead(buttonAPin);
buttonBState = digitalRead(buttonBPin);
buttonCState = digitalRead(buttonCPin);

if (buttonAState == HIGH) {
digitalWrite(ledAPin, HIGH);
} else {
digitalWrite(ledAPin, LOW);
}
if (buttonBState == HIGH) {
digitalWrite(ledBPin, HIGH);
} else {
digitalWrite(ledBPin, LOW);
}
if (buttonCState == HIGH) {
digitalWrite(ledCPin, HIGH);
} else {
digitalWrite(ledCPin, LOW);
}
}

[Santiago]

Hi.

I can't see the circuit in attachment.

The problem is probably in the circuit because your code is working for me.

[George]

there it is:

[Santiago]

It is working for me.

Do you have the simu file?

[Anonymous]

Hi dear Santiago,

Here is the repport

Kind Regards

[Santiago]

Hi.
Report says everything is ok.

what would be useful is the simu file.

In any case is better to use "fixed Volt." components instead of switches.

Regards.

[Anonymous]

Dear Santiago,

The code needed to be change as I made some misteaks.
It looks good but when the Switch 02 is on all Leds 10 11 12 13 are ON

code:

const int buttonAPin = 0;
const int buttonBPin = 1;
const int buttonCPin = 2;
const int buttonDpin = 3;
const int buttonEpin = 4;
const int buttonFpin = 5;
const int buttonGpin = 6;
const int buttonHpin = 7;

const int ledAPin = 8; // buttonApin 0
const int ledBPin = 9; // buttonBpin 1
const int ledCPin = 10; // buttonCpin 2
const int ledDpin = 11; // buttonDpin 3
const int ledEpin = 12; // buttonEpin 4
const int ledFpin = 13; // buttonFpin 5

// Variable will change:
int buttonAState = 0;
int buttonBState = 0;
int buttonCState = 0;
int buttonDState = 0;
int buttonEState = 0;
int buttonFState = 0;
int buttonGState = 0;
int buttonHState = 0;
//
void setup() {
// Initialize the LED pinas an output:
pinMode(ledAPin, OUTPUT);
pinMode(ledBPin, OUTPUT);
pinMode(ledCPin, OUTPUT);
pinMode(ledDpin, OUTPUT);
pinMode(ledEpin, OUTPUT);
pinMode(ledFpin, OUTPUT);

}
void loop() {
// put your main code here, to run repeatedly:
buttonAState = digitalRead(buttonAPin);
buttonBState = digitalRead(buttonBPin);
buttonCState = digitalRead(buttonCPin);
buttonDState = digitalRead(buttonCPin);
buttonEState = digitalRead(buttonCPin);
buttonFState = digitalRead(buttonCPin);
buttonGState = digitalRead(buttonCPin);
buttonHState = digitalRead(buttonCPin);

if (buttonAState == HIGH) {
digitalWrite(ledAPin, HIGH);
} else {
digitalWrite(ledAPin, LOW);
}
if (buttonBState == HIGH) {
digitalWrite(ledBPin, HIGH);
} else {
digitalWrite(ledBPin, LOW);
}
if (buttonCState == HIGH) {
digitalWrite(ledCPin, HIGH);
} else {
digitalWrite(ledCPin, LOW);
}
if (buttonDState == HIGH) {
digitalWrite(ledDpin, HIGH);
} else {
digitalWrite(ledDpin, LOW);
}
if (buttonEState == HIGH) {
digitalWrite(ledEpin, HIGH);
} else {
digitalWrite(ledEpin, LOW);
}
if (buttonFState == HIGH) {
digitalWrite(ledFpin, HIGH);
} else {
digitalWrite(ledFpin, LOW);
}
}

Kind Regards

[Anonymous]

Hello,

Happy newyear Santiago