Date of Birth
Intro: Date of Birth
This will show you how to display your birthday on a seven-segment display. The materials you will need are as followed:
A Breadboard
A breadboard companion and a 9V battery
Wire(red, black, white, 3 other colors)
Three HD74LS00P Integrated Circuits
Two 7402 IC
One 7404 IC
Two 7408 IC
Two 7432 IC
7 resistors 220 Ohms or an R pack(4116R LF)
- One 7 segment display common cathode(FND500/6780)
STEP 1:
The first thing you will need to do is to make a truth table like the one above. Use your three switches: X,Y,Z or A,B,C. Write when and which segments you need to turn on to display you birthday when different switches are turned on and off.
STEP 2:
Then, you will need to make a K-map for each segment of the seven-segment display. Write the outcomes you get from each segment in a grid-looking thing. You will get a word or equation from the group of ones or highs in the K-map. In the first picture in this step, the equation is below the K-map.
STEP 3:
After that, draw a circuit for each segment according to your word or equation you got from the K-map.
STEP 4:
Then you will need to make each circuit in a circuit design software(I used Multisim): using three switches, power and ground, however many ICs you need(AND, OR, Invertor, NAND, NOR), a seven-segment display common cathode, and a bus line if you want, I would recommend one.
STEP 5:
Finally, if your circuit works in your design software, you can start to create your giant circuit on a breadboard. After you have finished your bread boarding, test it out using your truth table.
STEP 6:
And that is how you display your birthday using a seven-segment display. Good job!! And Happy Bread Boarding!!!
5 Comments
WakeUpWolfgang 10 years ago
jordanmcc 10 years ago
No, me and my classmates decided to do it on Instructables.
Kiteman 10 years ago
zzttrr 10 years ago
jalensehlhorst 10 years ago