AM 03: LDR Reading

This is the basic code to read the LDR sensor.

Required Materials

1 x Plug & Sense! Ambient Control 1 x Luminosity Probe For Ambient Control

Notes

- This example can be executed in Waspmote v12 and Waspmote v15

Code

/*  
 *  ------------  [AM_03] - LDR sensor reading  -------------- 
 *  
 *  Explanation: This is the basic code to read the LDR sensor
 *  
 *  Copyright (C) 2016 Libelium Comunicaciones Distribuidas S.L. 
 *  http://www.libelium.com 
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 * 
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 * 
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see .
 *
 *  Version:         3.0
 *  Design:          David Gascón
 *  Implementation:  Luis Miguel Marti
 */

#include 

float analogLDRvoltage;


void setup() 
{
  USB.ON();
  USB.println(F("LDR value example"));
}

void loop()
{

  // LDR reading (volts)
  analogLDRvoltage = SensorAmbient.getLuminosity();

  USB.print(F("LDR:"));
  USB.println(analogLDRvoltage);

  //wait 2 seconds
  delay(2000);
}

Output

 H#
 LDR value example
 LDR:0.0645161247
 LDR:0.3064516067
 LDR:0.1225806474
 LDR:0.3161290168
 ...