Touch Less Switch

1#define r1 13
2int relay1 = LOW;
3
4int obstaclePin = 7;  // This  is our input pin
5int hasObstacle = HIGH;
6
7void setup()
8{
9  pinMode(r1,  OUTPUT);
10  pinMode(obstaclePin, INPUT);
11  Serial.begin(9600);  
12}
13void  loop() {
14  hasObstacle = digitalRead(obstaclePin);
15  if (hasObstacle == LOW)
16  {
17            relay1 = ~ relay1;
18            digitalWrite(r1,relay1);
19            delay(1000);
20   }
21 
22  delay(200);
23}