From the mbed microcontroller Handbook.

DigitalInOut

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The DigitalInOut interface is used as a bi-directional digital pin, used to read the value of a digital pin when set as an input, or write the value when set as an output.

Any of the numbered mbed pins can be used as a DigitalInOut.

Hello World!

Reset a 1-Wire device

 
#include "mbed.h"

DigitalInOut pin(p5);

int main() {
    pin.output();
    pin = 0;     
    wait_us(500);
    pin.input();
    wait_us(500);
}

API

API summary

DigitalInOut	A digital input/output, used for setting or reading a bi-directional pin
Functions
DigitalInOut	Create a DigitalInOut connected to the specified pin
write	Set the output, specified as 0 or 1 (int)
read	Return the output setting, represented as 0 or 1 (int)
output	Set as an output
input	Set as an input
mode	Set the input pin mode
operator=	A shorthand for write
operator int()	A shorthand for read

class DigitalInOut : public Base

A digital input/output, used for setting or reading a bi-directional pin

DigitalInOut( PinName pin,
const char * name = NULL )

Create a DigitalInOut connected to the specified pin

void write( int value )

Set the output, specified as 0 or 1 (int)

int read()

Return the output setting, represented as 0 or 1 (int)

void output()

Set as an output

void input()

Set as an input

void mode( PinMode pull )

Set the input pin mode

DigitalInOut& operator= ( int value )

A shorthand for write

operator int()

A shorthand for read

Page history

Last modified 21 Jul 2010, by Dan Ros

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DigitalInOut

Hello World!

Reset a 1-Wire device

API

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