Obstacle Detection
This instructable is regarding the interface of IR sensor and buzzer to the Arduino in such a way that it works as obstacle detection circuit.
Getting Started
This is my first instructable for obstacle detection.I have used two IR sensor and an arduino to make a circuit which sense obstacle coming in its path.The two IR sensor is such calibrated that any of the two output is one the the buzzer turns on.such a device can be use in doors ,when there is someone at the door the buzzer beeps.
Components
The following components are needed
- Arduino any model (here I have used Arduino Diecimila)
- IR sensors
- buzzer
- connecting wires
- Arduino programming software
- battery
The above components are easily available in market.
Circuit Making
Connect the circuit as shown in figure
In the circuit the two output of IR sensors are connected to the analog pins A0 & A1 of arduino. I have used digital pins 3,4 for +vcc of IT sensor. The digital pin 2 works as the input to the buzzer.
The program compares the output from the sensors an if result is greater than 0 the buzzer is turned on simple!!!!!!!!
The sensor range can be increased with the help of proper calibration
Please do find the C programming .