TOUCH LESS DOOR BELL

TOUCH LESS DOOR

In this tutorials we are going to see how to make touch less door bell.this can be done by using IR transmitter and receiver pair.

The automatic door bell system is an attractive and much useful circuits in our day to day life. Generally, most of the house owners are using the doorbells. If the visitor comes to the house, first he/she searches for the doorbell. If the house owner is using the automatic doorbell system with the object detection, then the visitor need not to search for the switch of the door bell. Automatically, the sensor will sense the object or the person, hence, the sound will produce at the door. This circuit is very useful for the shorter persons, if he/she can’t press the doorbell switch, then the circuit will automatically sense the person and produce the sound.

requirements 

1.IR transmitter and receiver pair

2.10kohms variable resister

3.registers (220ohms,10kohms,100ohms)

4.buzzer

5.led

6.zero pcb

7.lm 358 IC

8.9v battery

circuit diagram

procedure

1. connect the circuit as per the circuit diagram.

2.IR transmitter and the IR receiver should be placed near each other.

3.vary the variables register to adjust range sensitivity.

guys if you have any problems regarding circuit or component availability then write in the comment section!!

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