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Esplora

readLightSensor()

Description

Reads the intensity of light hitting the light sensor as a 10-bit number. This means that it will map input voltages between 0 and 5 volts into integer values between 0 and 1023. This yields a resolution between readings of: 5 volts / 1024 units or, .0049 volts (4.9 mV) per unit.

Syntax

Esplora.readLightSensor()

Parameters

none

Returns

int : The amount of light hitting the sensor, mapped to a value between 0 and 1023.

Example

#include <Esplora.h> void setup ( )
{
  Serial.begin ( 9600 ) ;
} void loop ( )
{
  int value = Esplora.readLightSensor ( ) ;
  Serial.println (value) ;   delay ( 1000 ) ;
}

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