Adder/Subtractor

5,949

104

21

Introduction: Adder/Subtractor

About: I am a student of BSCS but I'm interested in electronics that's why I would like to think about innovative ideas and try to build my ideas into reality and i also interested in making a robots. email id: degen…

Hello! friends

Welcome to my another Adder and Subtractor project. It's a topic of Digital And Logic Design by Morris Mano (fifth edition) with the help of this you'll know how its work in reality.

So let's get started.

Step 1: Circuit Diagram

With the help of this diagram we build our Adder/Subtractor project.

Step 2: Materials

You'll need

Some pieces of wire

Soldering wire and solder

Vero board

Resistors: (330ohms x 13) and 1k

Ic's: lm7805, 74ls86 and 74ls38 with bases

Switches: spst x 9 and dpst x 1

Led's: red x 9 and yellow x 5

Step 3: Component Placing

Place the components according to diagram on vero board and soldering it.

Step 4: Soldering and Jumper Wires

Here it is the soldering and jumper wires.

Step 5: Finish

After its look like this.

Step 6: Examples

When you push the switch on left side then its work as a adder and on left side as a subtractor you can see on image. I uploaded a video on next step i'm sure it will clear your concept.

Step 7: Video

Thanks for watching.

I hope you guys like it.

Be the First to Share

    Recommendations

    • The 1000th Contest

      The 1000th Contest
    • Battery Powered Contest

      Battery Powered Contest
    • Hand Tools Only Challenge

      Hand Tools Only Challenge

    21 Discussions

    0
    YousefM18
    YousefM18

    2 years ago

    We would appreciate the circuit schematic for a 14-pinned IC instead of 16. I couldn't find one in the local market!

    0
    YousefM18
    YousefM18

    Question 2 years ago

    Hey, thanks for sharing.
    Could you please share the diagram for using an 74ls38 with only 14 pins? Thanks!

    0
    Abhi909
    Abhi909

    4 years ago

    great project

    can i place your project on my website.

    i'm working on a website which is related to electrical projects.

    i also mention your name.

    plz reply

    0
    Asadullah Mughal
    Asadullah Mughal

    Reply 5 years ago on Introduction

    https://www.google.com.pk/search?q=veroboard&rlz=1C1CHWA_enPK648PK648&es_sm=93&biw=1527&bih=863&source=lnms&tbm=isch&sa=X&ved=0CAYQ_AUoAWoVChMI-ZDZs4L3xwIVxLcUCh1fbQ6r#tbm=isch&q=ic+74ls38&imgrc=GgFXsMfP-wxwcM%3A

    0
    AyaanS1
    AyaanS1

    5 years ago on Introduction

    circuit diagram is not clear,upload a clear image of it soon

    0
    Asadullah Mughal
    Asadullah Mughal

    Reply 5 years ago on Introduction

    k let me clear you just focus on a diagram lets get started with upper 4 led's (A0, A1, A2 and A3) will be connected with 74ls38

    A0 is connecting with the pin 10 of (74ls38)

    A1 is connecting with the pin 8 of (74ls38)

    A2 is connecting with the pin 3 of (74ls38)

    A3 is connecting with the pin 1 of (74ls38)

    lower 4 led's (B0, B1,B2 and B3) will be connected with 74ls86

    B0 is connecting with the pin 2 of (74ls86)

    B1 is connecting with the pin 5 of (74ls86)

    B2 is connecting with the pin 10 of (74ls86)

    B3 is connecting with the pin 14 of (74ls86)

    now let's talk about the jumper who's connected with IC to IC

    (74ls86) pin no 6 connected with (74ls38) pin no 7

    (74ls86) pin no 11 connected with (74ls38) pin no 16

    (74ls86) pin no 13 and (74ls38) pin no 5 connected with +ve terminal of 9 volt battery and other connections are shown in a diagram clearly.

    I hope it will help you.

    0
    alcantara97
    alcantara97

    5 years ago on Introduction

    good day sir. i just would like to ask how to connect the circuit into the ic 74ls38, which has 14pins because in your finish project or circuit it has a 16pin 74ls38. i am just a newbie sir with digital electronics and i want to build this one,,, so please could you help me sir. thank you sir.

    0
    peabody1929
    peabody1929

    5 years ago

    Try a 74ls381.

    0
    Paulosutty
    Paulosutty

    5 years ago

    Thanks. Great idea! Keep it UP!

    0
    AlexFW
    AlexFW

    5 years ago

    This is a cool project, but it's a little hard to follow the wiring diagram/soldering board layout. I would put it into Fritzing or 123d circuits and share the link.

    0
    Asadullah Mughal
    Asadullah Mughal

    Reply 5 years ago on Introduction

    AlexFW follow the circuit diagram it's not difficult. If you having in trouble don't worry i'm ready to help you.

    0
    Paulosutty
    Paulosutty

    5 years ago

    Is it easy to use bread board?