Digitalclock project 2016 with timer 555 & IC 7490 & IC 7474 & 7 segment

Digital Clock

Content...1) Breadboard2) Resistors and Capacitor3) Logic Gates (SN7408)4) 555 timer5) Decade and binary counters (7490)6) BCD to 7-segement decoders/drivers (7447)7) 7 segment LED display

BREADBOARDA breadboard also known as protoboard is a type of solderless electronic circuit building.You can build a electronic circuit on a breadboard without any soldering ! Best of all it is reusable. It was designed by Ronald J Portugal of EI Instruments Inc. in 1971.

Building or prototyping circuits on a breadboard is also known as 'breadboarding '.In this instructable I will guide you how to use a modern breadboard to make simple circuits.

Resistors…

Types of ResistorsFIXED RESISTORS:1) Carbon Composition Resistor2) Precesion wire wound3) NIST Standards4) Power wire wound resistor5) Fuse resistors6) Carbon film resistors7) Metal Film resistors 8) Foil Resistors9) Filament resistors10) Power Film resistors

VARIABLE RESISTORS11) Rheostat12) Potentiometer13) Preset

TYPES OF CAPACITOR1) Electrolytic capacitor2) Non- Electrolytic capacitor3) Variable Capacitance (varicap) Other types capacitor Ceramic Capacitor Mica Capacitor Mylar Capacitor Dielectric Capacitor Film Capacitor Radial Lead type capacitor Axial Lead type capacitor Tantalum Electrolytic Capacitor

GATES Any binary operation (addition, multiplication etc) can be implemented using logic gates.

Basic Gates AND OR NOT

Derived Gates NAND NOR X-OR

AND Gate SN7408

555 Timer IC

PIN CONFIGURATION

Decade and Binary Counters (7490)

BCD to 7-Segment Decoders/Drivers (7447)

IC 7447 Pin Configuration

7 segment LED display

THANK YOU…!!!