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AnalogIn Class Reference
Public Member Functions

AnalogIn Class Reference
[Drivers]

An analog input, used for reading the voltage on a pin. More...

#include <AnalogIn.h>

Public Member Functions

 AnalogIn (PinName pin)
 Create an AnalogIn, connected to the specified pin.
float read ()
 Read the input voltage, represented as a float in the range [0.0, 1.0].
unsigned short read_u16 ()
 Read the input voltage, represented as an unsigned short in the range [0x0, 0xFFFF].
 operator float ()
 An operator shorthand for read()

Detailed Description

An analog input, used for reading the voltage on a pin.

Synchronization level: Thread safe

Example: 

 // Print messages when the AnalogIn is greater than 50%

 #include "mbed.h"

 AnalogIn temperature(p20);

 int main() {
     while(1) {
         if(temperature > 0.5) {
             printf("Too hot! (%f)", temperature.read());
         }
     }
 }

Definition at line 52 of file AnalogIn.h.

Constructor & Destructor Documentation

AnalogIn ( PinName  pin )

Create an AnalogIn, connected to the specified pin.

Parameters:
pinAnalogIn pin to connect to
name(optional) A string to identify the object

Definition at line 61 of file AnalogIn.h.

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