Doorbell Ringer using OR gate

Doorbell Ringer using OR gate

Jul 17, 2023 - 21:35
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Doorbell Ringer using OR gate
Doorbell Ringer using OR gate

To perform this experiment, we need the following. 

1. Breadboard 

2. Resistor

3. Buzzer

4.  2 Slide switches 

5. OR gate IC 7432

6. LED

Theory:

  • An OR Gate is an electronic circuit that gives a true output (1) if one or more of its input are true.
  • (+) is used to show the OR operation.
  •  For a 2-input OR Gate, the output Q is true if either input “OR” input B is true.
  • The Boolean expression of OR Gate is:

Q=A or B

  •  An OR gate can have two or more inputs, its input is true if atleast one input is true.
  •  OR is used to set the bits to one.
  • symbol or truth table of the OR gate is as follows:
 

Circuit Diagram:
 

Result/Output:
 
The experiment was verified with validation from the truth table of OR gate.