HOW TO MAKE LED SIGN BOARD
Hi friends in this video i have made led sign board controller using 555 timer ic 74hc595 ic relays and a few components the circuit runs on 12v and can be used with led sign boards i hope you will enjoy this video please like share and subscribe my channel
Components:
1x 74HC595 IC
1x 555 TIMER IC
1x 7805 REGULATOR IC
1x BD139 TRANSISTOR
7x BC547 TRANSISTORS
4x 1N4007 DIODES
4x LEDs
1x 10K VARIABLE RESISTOR
9x 1K RESISTORS
5x 10K RESISTORS
2x 100nF ( 104 )CAPACITORS
1x 10uF CAPACITOR
1x 47uF CAPACITOR
1x 100uF CAPACITOR
VERO BOARD
JUMPER WIRES
Circuit Diagram:
drive.google.com/open?id=1hdG...
drive.google.com/open?id=1jxU...
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5 май 2019