INTERFACING OBSTACLE SENSOR WITH BHARAT -PI

An obstacle detection system is a device or system that is designed to detect the presence of obstacles in a specific area. These systems can be used in a variety of applications, such as in vehicles to assist with driving, in robotics to help with navigation, and in industrial settings to protect workers and equipment. Common types of obstacle detection systems include radar, lidar, ultrasonic sensors, and cameras. These systems use different techniques to detect obstacles, such as measuring distance, using infrared radiation, or analyzing images.

Step 1: About IR Obstacle Avoidance Sensor

The infrared (IR) obstacle sensor is used to detect the presence of any obstacle in front of the sensor module by using the infrared signal. The detection range is from 2cm to 30cm. The detection range can be adjusted by a built-in potentiometer.

Step 2: Pinout

IR obstacle avoidance sensor includes three pins:

GND pin: needs to be connected to GND (0V)

· VCC pin: needs to be connected to VCC (5V or 3.3v)

· OUT pin: is an output pin: LOW when there is an obstacle, HIGH when there is no obstacle. This pin needs to be connected to Arduino's input pin.

Step 3: How It Works?

An infrared obstacle sensor module has a built-in IR transmitter and IR receiver. The IR transmitter emits the IR signal. The IR receiver looks for the reflected IR signal to determine if the object is present or not. The presence of obstacle is reflected in the OUT pin:

· If the obstacle is present in front of the sensor, the sensor's OUT pin is LOW

· If the obstacle is NOT present in front of the sensor, the sensor's OUT pin is HIGH

Step 4: Requriments

· Bharat-pi (board)

· Audinuo-ide

· Obstacle avoidance sensor

Step 5: • Interfacing Obstacle Sensor With Bhart Pi

Connections are given as follow:

Gnd pin :gnd

Vcc pin:5V

Out pin:2

Step 6: Source Code and Programming

const int SENSOR_PIN = 2;

void setup() {

Serial.begin(9600);

pinMode(SENSOR_PIN, INPUT);

}

void loop() {

int state = digitalRead(SENSOR_PIN);

if (state == LOW)

Serial.println("The obstacle is present");

else

Serial.println("The obstacle is NOT present");

delay(100);

}

code avilable at git hub : https://github.com/Madhankarthick/interfacing-obstacle-sensor-with-bharat-pii/blob/96f32390d50358ae4340e85fdccf67f15a61526a/obstacle%20sensor.txt

obstacle sensor.txt
Download

Step 7: Conclusion:

In conclusion, obstacle detection sensors play a critical role in enhancing safety and efficiency across various industries. These sensors provide real-time information about the presence of obstacles, enabling automated systems to make informed decisions. Whether in autonomous vehicles, manufacturing processes, or smart infrastructure, obstacle detection sensors are indispensable tools for creating a safer and more efficient future. Their continued development and integration into various applications hold the promise of improved safety, reduced accidents, and increased productivity.