Introduction: Animated LED Sign Board Without Programming
It is an electronic project without programming or any micro controller
you can make your own customized word's led sing board using this circuit
in this project I have used shift resistor IC 74ls164 and IC 555 for animation. you can make led board with 8 letter words
I make in my project "WELCOME " word it is 7 letter word.
All components of this project are available at https://lcsc.com
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Step 1: You Need to Make
All parts are available at https://lcsc.com
Parts list -
LED - 5mm Buy
IC - 555 Buy
IC -7805 Buy
IC - 74LS164 Buy
IC - ic base 8 pin Buy
14 pin Buy
Diode - 1N4148 Buy
Transistor bc547 b
or 548 b Buy
Capacitor - 0.01 Buy
Potentiometer 100K Buy
Resistor - 10K Buy
DC socket Buy
vero board Buy
& 12 volt adapter for power source.
Step 2: Making LED Board
I make in my project "WELCOME " word it is 7 letters word
you can make your own customized word's led sing board using this circuit up to 8 letters words
All led's positive & negative pins are connected with etch other (per letter)
negative pins are goes to collector pin of transistor Positive pins are connected with 680 ohm resistor & all resistors goes to 12 volt positive
if your word are big & you are using more LEDs in per letter then use resistor lower than 680 ohm.
for bigger sign board you can use a separate power supply for led board.
Step 3: Making Controller Board & Joining to LED Board
IC - 74LS164 & IC 555 runs on 5v volt so I used here a 5 voltage regulator IC 7805
Potentiometer 100K connected to pin 6&7 of timer IC 555.you can control animation speed using this Potentiometer
8 piece 547b transistor used for drive the leds & another one transistor 547b for reset pin
now make circuit using circuit diagram on a vero board
after that join transistors collector pin to led board's negative pin of each letter
& join 12 volt positive to led board positive where all 680 ohm resistors is connected.
power it with 12 volt 1 amp dc power adapter.
for more details please watch making video - https://youtu.be/4W6OyjtY7T8