const int swtch = 2;
const int sens = 3;
int val = 0;
byte state = 0;
void setup(){
pinMode( swtch, OUTPUT );
pinMode( sens, INPUT );
}
void loop(){
val = digitalRead( sens );
if( val == HIGH ){
state = !state;
if( state == HIGH ){
digitalWrite( swtch, HIGH );
} else {
digitalWrite( swtch, LOW );
}
delay( 1000 );
}
}