Today I am going to make a circuit of LED Chaser using 4017 IC and RGB LED.
Let's get started,
Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.
Step 1: Take All Components As Shown Below
Step 2: Fold Pins of IC Like This
Step 3: Make a Circle of Copper Wire
Step 4: Circuit Diagram
Connect all components according to this circuit diagram.
Step 5: Connect LEDs
Firstly we have to connect the -ve legs of all LEDs to circle of the copper wire as you can see in the picture.
Step 6: Connect +ve Legs of LEDs
Next we have to connect +ve legs of all LEDs to the pins of IC 4017 as solder in the picture.
Connect +ve of LED-1 to pin-3 of IC ,
+ve of LED-2 to pin-2,
+ve of LED-3 to pin-4,
+ve of LED-4 to pin-7,
+ve of LED-5 to pin-10,
+ve of LED-6 to pin-1,
+ve of LED-7 to pin-5,
+ve of LED-8 to pin-6,
+ve of LED-9 to pin-9 and
+ve of LED-10 to pin-11 of the IC.
Step 7: Short Pins of IC
Next connect pin-8, pin-13 and pin-15 of IC to each other as you can see in the picture.
Step 8: Connect 1K Resistor
Solder 1K resistor between -ve pin of all LEDs to pin-15 of the IC as given in the circuit diagram.
Step 9: Connect 470 Ohm Resistor
Next connect 470 ohm resistor between pin-14 and pin-15 of the IC.
Step 10: Connect RGB LED to the Circuit
Now we have to connect RGB LED at the centre of all LEDs.
~ Solder +ve leg of RGB LED to pin-16 of IC and
solder -ve leg of RGB LED to pin-14 of the IC as given in the circuit diagram.
Step 11: Connect Battery Clipper Wire
Solder +ve wire of battery clipper to pin-16 of the IC and
Solder -ve wire of battery clipper to pin-8/13/15 of the IC.
Step 12: Connect Battery to Battery Clipper
Step 13: How It Will Work
All LEDs will glow one by one as fast RGB LED Color will change.