4pin IR Infrared Obstacle Avoidance Sensor Module KY032
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Description :
Basically its an IR emitter and receiver, the receiver detects when an obstacle has been placed in the beam of the IR emitter output this is then sent back as a logic low when an obstacle is present and a logic high when no obstacle is present, when connected to and Arduino you can perform an action, a common use would be in a robot where you wished to detect the presence of an object, lets say a wall and either stop or change direction, your robot may in fact have more than one of these.
Source code :
int detector = 8; // define the obstacle avoidance sensor interface int val ; void setup () { pinMode(13, OUTPUT); // Built in Arduino LED digitalWrite (13, LOW); pinMode (detector, INPUT) ;// define the obstacle avoidance sensor output interface } void loop () { val = digitalRead (detector) ; if (val == HIGH) // When the obstacle avoidance sensor detects a signal, LED flashes { digitalWrite (13, HIGH); delay(100); } else { digitalWrite (13, LOW); delay(100); } }
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