[vc_row][vc_column width=”1/1″][vc_tour][vc_tab title=”Hardware and software requirements” tab_id=”1395207296-1-5″][vc_column_text]Software:  install java development environment first.

Hardware:

1. 1 x pcDuino
2. 1 xLinker LDR module

[/vc_column_text][/vc_tab][vc_tab title=”Wiring Diagram” tab_id=”1395207296-2-10″][vc_column_text]The parts are wired in the following way:

1. GND of Light sensor module to GND of pcDuino
2. VCC of Light sensor  module to 3.3Vof pcDuino
3. SIG of Linker sensor module to ADC1 of pcDuino

[/vc_column_text][/vc_tab][vc_tab title=”Test Results” tab_id=”1395209287903-2-7″][vc_column_text]When run the sample code, it will output:

[/vc_column_text][/vc_tab][vc_tab title=”Test Code” tab_id=”1395209394228-3-9″][vc_column_text]ADC class

package com.test.bean;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class ADC_Pin {
    private int pin = 0;
    private String pinURI = "/proc/";

    public int getPin() {
        return pin;
    }

    public String getPinURI() {
        return pinURI;
    }

    public ADC_Pin(int pin) {
        // TODO Auto-generated constructor stub
        this.pin = pin;
        this.pinURI += "adc" + pin;
    }

    public int analogRead() throws IOException {
        // TODO Auto-generated method stub
        FileReader fr = new FileReader(this.pinURI);
        BufferedReader br = new BufferedReader(fr); 
        String string = br.readLine();
        fr.close();  
        int value = Integer.parseInt(string.substring(5));
        return value;
    }

}

Test class

package com.test.main;

import java.io.IOException;

import com.test.bean.ADC_Pin;

public class Test {

    /**
     * @param args
     * @throws IOException 
     */
    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
        ADC_Pin adc1=new ADC_Pin(1); 
        while(true)
        System.out.println("ADC"+adc1.getPin()+" value:"+adc1.analogRead());
    }

}

Download source project[/vc_column_text][/vc_tab][/vc_tour][/vc_column][/vc_row]