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

digital clock with timer 555 - and gate - IC 7447 - IC 7490 - 7 segment - breadboard

1. D igital Clock

2. Content ... Breadboard Resistors and Capacitor 3 ) Logic Gates (SN7408) 4 ) 555 timer 5 ) Decade and binary counters (7490) 6 ) BCD to 7-segement d ecoders/drivers (7447) 7 ) 7 segment LED display

3. BREADBOARD A 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.

4. Resistors …

5. Types of Resistors FIXED RESISTORS: Carbon Composition Resistor Precesion wire wound NIST Standards Power wire wound resistor Fuse resistors Carbon film resistors Metal Film resistors Foil Resistors Filament resistors Power Film resistors VARIABLE RESISTORS Rheostat Potentiometer Preset

6. TYPES OF CAPACITOR Electrolytic capacitor Non- Electrolytic capacitor 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

7. GATES Any binary operation (addition, multiplication etc ) can be implemented using logic gates. Basic Gates AND OR NOT Derived Gates NAND NOR X -OR

8. AND Gate SN7408

9. 555 Timer IC

10. PIN CONFIGURATION

11. Decade and Binary Counters (7490)

12. BCD to 7-Segment Decoders/Drivers (7447) IC 7447 Pin Configuration

13. 7 segment LED display

14. THANK YOU…!!!