11 LED Adjustable Chaser With 555Timer

Parts:

Leds: Pack of 25 Can use Purple Ones

IC: 555 timer, CD4017

Capacitor: 10uf, 100nf(104)

Potentiometer: 10k Linear Mono

Resistors: 1k, 10k, 120ohm

Breadboard + Cables + Battery Clip

Step 1: Place Base Components

The 555 timer and Cd4017 are placed along with the leds and the wires connecting to power and ground.

555Timer:

Pin1 to Gnd

Pin4 to Pwr

Pin8 to Pwr

Cd4017:

Pin8 to Gnd

Pin13 to Gnd

Pin15 to Gnd

Pin16 to Pwr

Step 2: Add the Rest of the Components

The capacitors, resistors and potentiometer as well as the last led are added.

Capacitors:

100nF(104) Pin5 to Gnd

10uF Pin6 to Gnd NEGATIVE SIDE to GROUND!

Resistors:

10k Pin7 to Pwr

120ohm Pin3 to Extra LED leg

-

1k x10 LED leg to other side

Potentiometer:

10k at edge

Step 3: First Wires

Right Potentiometer leg to Pin5

Middle Potentiometer leg to Pin7

Left Potentiometer leg to Pin7

Pin6 To Pin2

Step 4: Alittle More Wires

Pin14 to LED leg

------------------------

CD4017 to Resistor (LED)

Pin3 to LED1

Pin2 to LED2

Pin4 to LED3

Pin7 to LED4

Pin10 to LED5

Pin1 to LED6

Pin5 to LED7

Pin6 to LED8

Pin9 to LED9

Pin11 to LED10

-----------------------

Pin12 No connection

Step 5: Its Done

Potentiometer Varies the Speed.

DC 5-10V

The circuit can be soldered and then included in a robot to give a cool effect.