kushagra brahmbhatt / IoT_Security

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependents:   IoTBurglar_and_Fire_AlarmSystem

Embed: (wiki syntax)

« Back to documentation index

DigitalIn Class Reference
Public Member Functions

DigitalIn Class Reference

A digital input, used for reading the state of a pin. More...

#include <DigitalIn.h>

Public Member Functions

 DigitalIn (PinName pin)
 Create a DigitalIn connected to the specified pin.
 DigitalIn (PinName pin, PinMode mode)
 Create a DigitalIn connected to the specified pin.
int read ()
 Read the input, represented as 0 or 1 (int)
void mode (PinMode pull)
 Set the input pin mode.
 operator int ()
 An operator shorthand for read()

Detailed Description

A digital input, used for reading the state of a pin.

Example: 

 // Flash an LED while a DigitalIn is true

 #include "mbed.h"

 DigitalIn enable(p5);
 DigitalOut led(LED1);

 int main() {
     while(1) {
         if(enable) {
             led = !led;
         }
         wait(0.25);
     }
 }

Definition at line 46 of file DigitalIn.h.

Constructor & Destructor Documentation

DigitalIn ( PinName  pin )

Create a DigitalIn connected to the specified pin.

Parameters:
pinDigitalIn pin to connect to

Definition at line 53 of file DigitalIn.h.

DigitalIn ( PinName  pin,
PinMode  mode 
)

Create a DigitalIn connected to the specified pin.

Parameters:
pinDigitalIn pin to connect to
modethe initial mode of the pin

Definition at line 62 of file DigitalIn.h.

Member Function Documentation

void mode ( PinMode  pull )

Set the input pin mode.

Parameters:
modePullUp, PullDown, PullNone, OpenDrain

Definition at line 79 of file DigitalIn.h.

operator int (  )

An operator shorthand for read()

Definition at line 86 of file DigitalIn.h.

int read (  )

Read the input, represented as 0 or 1 (int)

Returns:
An integer representing the state of the input pin, 0 for logical 0, 1 for logical 1

Definition at line 71 of file DigitalIn.h.

Generated on Tue Jul 12 2022 19:25:17 by  doxygen 1.7.2