Police Light Circuit | 555 Timer Projects | Cd4017 Circuit

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Step 1: Useful Material

❖ Hardware Required ❖

  • ► 555 Timer IC
  • ► CD4017 Timer IC
  • ► 2N222 Transistor 2x
  • ► LED 4x
  • ► 10uf Capacitor
  • ► 555 Timer IC
  • ► 220 Ohm Resistor 7x
  • ► 10k Ohm Resistor
  • ► 1k Ohm Resistor
  • ► 555 Timer IC
  • ► 9V Battery with Clip
  • ► Breadboard
  • ► Jumper Wires

❖ Circuit Diagram ❖

Link ► https://www.file-upload.com/mjl6pojtvg2u

Step 2: Useful Steps

❖ Steps ❖

STEP # 1 ( Make Power Connections of 555 Timer )

► Pin 8 of IC – To VCC of Battery

► Pin 4 of IC - To GND of Battery

STEP # 2 ( Connect Jumpers )

► Put Jumper B/W Pin 6 and Pin 2 of IC

► Put Jumper B/W Pin 4 and Pin 8 of IC

STEP # 3 ( Connect Resistors, Capacitor )

► Put 10K Resistor B/W Pin 6 and Pin 7 of IC 555 Timer

► Put 10uF Capacitor B/W Pin 1 and Pin 2 of IC 555 Timer

► Put 1K Resistor B/W Pin 7 and Pin 8 of IC 555 Timer

STEP # 4 ( Make Power Connections of CD4017 )

► Pin 8 of IC – To GND of Battery

► Pin 16 of IC - To VCC of Battery

STEP # 5 ( Make Connection B/w IC's )

► Put 220 Resistor B/W Pin 3 of IC 555 Timer & Pin 14 of CD4017 IC

STEP # 6 ( Grounding )

► Connect Pin 13 & Pin 15 to GND of 9V Battery

STEP # 7 ( Connect LED's )

► Connect All Anode's of LED to VCC of 9V Battery

STEP # 8 ( Connect Transistor's )

► Connect Emitter of both Transistor to GND of 9V Battery

► Connect Collector of Each Transistor to -ve of each LED

STEP # 9 ( Connect Six 220 Resistor's )

► Connect Three 220 Resistor from Pin 3,4,10 to Base of One Transistor

► Connect Three 220 Resistor from Pin 1,6,11 to Base of Second Transistor

STEP # 10 ( Let's Test )

Make it Glow Contest 2018

This is an entry in the
Make it Glow Contest 2018

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