DFRobotArduino Shields User Manual

Arduino Shields Manual
2010
- 14 -
Sample Code
//This input shield use Digital Pin 3,4,5 (3 buttons) and Analog Pin 0,1
(JS)
// // Upload the code to Arduino
// www.dfrobot.com
// Last modified on 24/12/2009
int x=1;
int y=0;
int button_A= 5;
int button_B= 3;
int button_C= 4;
void setup()
{
int i;
for(i=3;i<=5;i++)
pinMode(i, INPUT);
pinMode(LED,OUTPUT);
}
void loop()
{
int val;
while(1)
{
val=analogRead(x); //Read Analog input
if(val>1000||val<20) digitalWrite(LED, HIGH);
else digitalWrite(LED,LOW);