Analog Pin Like Digital Pin, is possible?

Other Hardware Sensors
1

Hi, :slight_smile:
i have ArduinoUNO, i have to connect to this Arduino, 5 Ultrasonic Sensor (HC-SR04), but i don't have enough free Digital Pin, but instead i have all the Analog Pin free, can i use this Analog Pin to connect the Ultrasonic Sensor?
How i have to initialize this pin?
and how i have to setup it in the "Setup" funcion??

Please Help Me :cold_sweat: :cold_sweat: :cold_sweat:

2

Please insert your code

3

Sure you can use analog pins as digital input or output pins.

In your setup() function set the pin mode desired for the pins you use, example:

pinMode(A0, OUTPUT); // lets use analog pin 0 as a digital output pin
pinMode(A1, INPUT); // lets use analog pin 1 as a digital input pin
...
...

Then in you main sketch you can then do stuff like:

digitalWrite(A0, HIGH);
int myVariable = digitalRead(A1);

Lefty

4

hi

#define trigPin A0
#define echoPin A1

void setup()
{
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
}

or

int trigPin = A0;
int echoPin = A1;

void setup()
{
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
}

regards