Digital Clock

by ManmohanP4 in Circuits > LEDs

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Digital Clock

IMG_20190826_1556331.jpg
large Seven Segment Digital Clock using Atmega328/ Atmega8 by Manmohan Pal

You can Buy All Components directly from me

Contact me on WhatsApp 8989811397

-: Component List :-

1. Atmega328p / Atmega8A 2.16Mhz Crystal 3. 22PF x2 Capecitors 4. 28 Pin Ic Base

5. Led (I Am Using 116 LEDs)

6. Zero PCB 7. Slide On Off switch

8. Push On-Off Switch (1 Pcs)

9. Push Button Switch (2 Pcs) 10. Resistors 100 Ohm (8 Pcs)

Additional Items

1. 3.7 Volt Li-Ion Battery

2. Li Ion Battery Charger

SINGLE-DIGIT-CONNECTION.jpg

Step 1- Make Single Seven Segment - each line of seven segment is made with 4 LEDs connected in parallel connection, Cathode of all the LEDs are connected together and Anode of 4 LEDs of a group are connected with each other.

4-DIGIT-CATHODE-CONNECTION-665x344.jpg

Step 2- Make 4 Such Seven Segments, and keep the Cathode of each seven segment saperate and connect then to a male header as shown in the fig below.

male-header-circuit-connection.jpg

Step 3- Connect A segment of all the four Digits together and further connect them with male pin header as shown in the figure.similarly connect B segment of all the 4 Digits together as do it for all the A to G segments.

digital clock segment multiplexing.png

LED-CLOCK-CIRCUIT.jpg

arduino-led-clock.jpg

Manmohan Pal

WhatsApp 8989811397 Email- mannmohanpal@gmail.com Blog: http://electronics4ubymanmohanpal.blogspot.in/p/b... Youtube Channel: http://electronics4ubymanmohanpal.blogspot.in/p/b...

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