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The aim of this instructable is not to give you a complete guide on breadboard but to show the basics, and once these basics are learned you pretty much know all you need to so i guess you could call it a complete guide but in a different sense. Anyway i will only be using an led and some resistors to outline how a breadboard works.

Note : a breadboard is a temporary circuit board for testing and prototyping circuits, no soldering is done on the board, this mean it is faster and easier to prototype circuits.

Also if you need a walk through on electronics please read my other instructable A Complete Guide To Basic Electronics
anyway onto the supplies!

Step 1: Supplies

For this instructable you will need
an led
a 4aa (or aaa) battery pack
a breadboard (bought from radioshack or t2retail in the uk)
breadboard jumpers (from radioshack or t2retail)
a few 100ohm resistors (or any value but you will need to change your layout to get the same results)
and finally a multimeter (measures voltage, resistance, current ect.)
Once you have these you are good to go



2 battery version with a switch
Thanks a ton for helping me make my first DC circuit!
<p>thank you very much! Dint xpect ny professionals to expain the very basics of such projects.... and that too with such a patience.... Thank You once again....\\ :)</p>
Is a breadboard different than a circuit board? And is so, how?
<p>Yes, though only in practicality as functionally they are the same. A breadboard is used to prototype a circuit in an easily re-designable manner before implementing it into something more permanent like circuit board. It saves many a headache to use a breadboard first.</p>
cool but the resistors get really hot <br>
<p>It's not a good idea to use resistors at their actual power rating, you need to get stronger resistors, or reduce the voltage while maintaining resistance.</p>
<p>thank you i have been reading alot of confusing books but your intructions are clear and accurate. thank you</p>
In the name of all breadboard-noobs:<br>Thank you!<br>(did u know that the original breadboard was a board of wood with nails, that were connected with wires)
<p>Hi, this was my first project and these instructions really helped. I understood a bit previously from school, but I'm very proud.</p><p>Next up 'enblinken litten'</p><p>Thank you!!!</p>
Thank you! I have been looking for stuff like this, and until now have yet to fined one that actually made since to me.
<p>Just a note to let you know I have added this ( a year ago ) to the instructable:</p><p> Comprehensive Guide to Electronic Breadboards: A Meta Instructable</p><p>&gt;&gt; <a href="https://www.instructables.com/id/Comprehensive-Guide-to-Electronic-Breadboards-A-Me/" rel="nofollow"> https://www.instructables.com/id/Comprehensive-Gui...</a></p><p>Take a look at a bunch of project involving breadboards.</p>
Thanks for notifying me. <br><br>I appreciate the credit given!<br>
<p>Absolute beginner here, I was doing it all wrong. This helped. Thank you. :)</p>
<p>5eBoard is the best solution for solderless boards especially for beginners. Modules can be placed anywhere on the board for easy clean projects.</p><p><a href="http://www.5eboard.com" rel="nofollow">http://www.5eboard.com</a></p><p>http://facebook.com/5eboard </p>
<p>Thank you very much for your work. It's greatly appreciated.</p>
i appreciate everyone's tips and suggestions, unfortunately i havent updated any instructables in the last 3-4 years due to my commitments to university and other projects. However i am studying electronic and electrical engineering and have a few projects coming up so no doubt i'll be able to post some new stuff and overhaul the old stuff. <br>once again i appreciate all the comments!
Overall this was a great set of instructions but i have a few suggestions. <br> <br>1) for the last few pictures, take them with a dead bulb just so we can see the how the connections are made more easily. <br>2) maybe in addition to the photos of the breadboard, a few basic handdrawn/computer-made diagrams(with the component rows spread out) that would make it easier to see where things are plugged in relatively to each other. <br>Thanks though. it was quite informative
I didnt got quite well the paralel and series connection form <br>So, - - is paralel? and - - is series? THANKS <br> - - - -
i realy needed this thank u <br>
This bis a great introduction, thanks a lot for your help.
I don't know if you've taken basic physics of electrics, but resistors in parallel average out, so three 100 ohm resistors along 3 parallels would still be 100 ohms resistance, the same for a 100 ohm and 200 ohm along two parallels, it would be 150 ohms resistance.<br>
Not sure why no one has corrected you since July but you seem to be mistaken, or you are trolling. However, 3 100 resistors in parallel would be 33.33 Ohms as per schumi23's formula above. and 100 ohm in parallel with 200 ohm would be 66.67 ohms. See the total resistance for a parallel branch MUST be smaller than the smallest resistance. So it would never be any larger than the smallest resistance. Thanks.
Question.&nbsp; Say you need 8 Ohms, and you only have resistors of like 50 ohms and higher and no two are alike, is there an easy formula to quickly figure out which combination you can use to get at or near 8 ohms?&nbsp; <br /> <br /> I&nbsp;realize you can just start doing calculations on different resistor values, but that can take some time. <br /> <br /> Thanks
I'm pretty sure the formula for resistors wired in Parallel is<br>1/rt=1/r1+1/r2+1/r3...<br>Were rt is the total resistance, and r1=r2=r3...<br>I'm not sure, but that's what i remember. Google Resistors and parallel and you will find the answer.
That's not a breadboard, now this is a breadboard! He-he j/k.<br />
Dang, I want one. Where'd you get it?
I bought it a piece at a time and double back taped it all to a big piece of Plexiglas. Then I stole the line from Crocodile Dundee, you know the that's not a knife scene?<br><br>Really it is a bit excessive today, but it was handy years ago with SSI TTL. All up and running that board drew about 5 amps too! But this was attached to it as well:<br><br>http://img708.imageshack.us/img708/1643/p7100090.jpg
What is that? It looks like a clock.
It is a 6 digit binary and hexadecimal latch, driver and 7 segment display. It connected to the cables that are sticking out of the breadboard. It was for displaying memory and address values of the computer circuit.
&quot;....[the] short one connects to the -ve end of the power source and obviously the longer leg to the +ve end. <strong>this is because an led allows electrons to flow easily from the cathode(-ve) to the anode(+ve)</strong> but not from the anode to the cathode.&quot;<br /> <br /> Is that correct?&nbsp; We're talking about positive-convention current (+ to -), aren't we?<br />
im talking in&nbsp; terms of electron current&nbsp; not&nbsp; conventional<br />
Thanks a bunch! Just what I was looking for!<br />
&nbsp;wow thanks man. we always pull these out accidentally in physics while looking for aligator clips and resitors, no one knew what they were for :) thanks bro
Awesome Tut... i greatly benefitted from both this instructable and your previous one. Im 19 and currently attempting to take up electronics as a hobby and a way to relax and simultainously stimulate my mind, however its like good electronic tutorials belong to secret clubs or something. idk lol this was a good one tho.
I remember my Mother saying: "That's a breadboard? Wouldn't the crumbs get stuck in all those little holes?"
@ Zem Both a breadboard and a circuit board, ( I will assume you mean printed circuit board, PCB) serve the same electronics function. The difference is that a breadboard is used for prototyping PCBs due to their speed, flexibility and reusability. Once you get your circuit up and working as expected, you can then etch your own PCB if you want. While not necessary, starting with a breadboard can save one, a lot of headache later. I hope that answers your question. Take Care
Could you give me a link to a website on basic electronics so i could learn more and have you got more instructables on basic electronics as I am new to electronics and really want to learn more. Thanks
www.allaboutcircuits.com is very very good
a very nice guide, thanks alot
on my bread board it has the power going strait own the entire row.
i deleted my own comment i accidentally posted it
Very helpful. I understand a lot better now.
I have a slightly stupid question... If your LED is say, 3.3v and you only run it on 3v, do you need a Resistor?
yes to step down the current, however you can run an led with no resistor but it will reduce its lifespan and it may get hot
Okay, thanks.
breadboard, range from $8 to £30. also i sill create an image tomorrow night to add to this to show how all the holes line conduct and describe a breadboard in more detail
LOL Cew , from $8 to £30!!!
In your equation R=3/0.02, where does the 0.02 come from? You didn't explain why to use 0.02. Would it still be 0.02 in another situation? Say for example I had a 12v supply, I know it would be a 9v drop, but do I divide the 9v by 0.02 as you did in your example? If so, I get 450. Is that correct? Thanks.<br/>
Hey Steve, The 0.02 is the current (in Ampere, so 20 mA) that you would want to get flowing in your "system". High Brightness leds will require more current than that, but most standard leds (the normal ones) are rated at 20mA. Don't give them more, they might give a bit more light, but for a much shorter time :) Let me know if there are more questions (or ask the board, ofcourse...) dieter

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