This document provides a summary of a dancing light circuit project that uses an NE555 timer IC and CD4017 decade counter IC. It includes a component list, description of the major components, the principle of operation explaining how the NE555 provides clock pulses to the CD4017 to light the LEDs in a dancing pattern, and procedures for assembling the circuit on a breadboard.

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DIPERTMENT : XXXXXXXXXXXXXXX
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3. CONTENT TABLE:
SL.NO. CONTENT
1. DIAGRAM
2. PRINCIPLEOF OPERATION
3. COMPONENT
4. DESCRIPTIONOF MAJOR COMPONENT
5. PICTURE
6. PROCEDURE
7. GUIDES
8. BIBLIOGRAPHY

4. diagram

5. PRINCIPLE OF OPERATION:
• Here is a simple dancing light circuit based on NE555
(IC1) & CD4017
(IC2) .
• The IC1 is wired as an astable multivibrator to provide
the clock pulses for the CD4017.
• For each clock pulse receiving at the clock input
(pin14) of IC CD4017, the outputs Q0 to Q9 (refer pin
diagram of CD 4017) becomes high one by one
alternatively.
• The LEDs connected to these pins glow in the same
fashion to give a dancing effect. The speed of the dancing

6. COMPONENTS:
IC:
a) NE555 : 1 PC
b) CD4017 : 1 PC
LED : 8PCS
RESISTANCE:
a) 220 Ohm : 8 PCS
b) 10 KOhm : 1 PC
c) 100 Kohm : 1 PC
(VARIABLE)
CAPACITOR:
a) 10 UF : 1 PC
BATTARY : 9V

7. Description of Major Component
IC 555 : The 555 timer is an
integrated circuit(chip) , used
for generating accurate timing
pulses. It is an 8pin timer IC &
mainly 3 modes of operation:
Monostable,
Astable &
Bistable.

8. CD 4017 :
The CD4017BC is a 5-
stage divide-by-10
Johnson counter with 10
decoded outputs and a
carry out bit.

9. RASISTANCELED CAPACITOR

10. BATTERY:
9 VOLT

11. PROCEDURE:
1. STUDYOF THE CIRCUIT DIAGRAM
2. CLEANINGOF THE LEADS OF THE COMPONENTS
3. PLACINGTHE COMPONENTS IN PROPERPLACE IN VERO
BOARD
4. SOLDERING THE LEADS
5. CONNECTING REQUIREDPOINTS BY WIRE
6. REVIEWING THE WHOLECIRCUIT
7. ATLAST CONNECTINGTHE BATTERY

12. GUIDES:
OUR RESPECTED TEACHERS:

13. BIBLIOGRAPHY:
INTERNET
TEXT BOOK

14. THANK
YOU