Thursday February 23, 2017

How to Use Solderless Breadboards

Step 5: Connect The Batteries!
It's all come down to this!  Hook up the batteries and your LED should light up.  If it doesn't, check the polarity of the LED, the value of your resistor (too high a value and you may not be getting enough voltage to the LED), and also be sure you're connected to the tie point holes as in the previous pictures.  A typical LED requires around 3v to light up so if you don't have enough voltage due to too small a power source or too high a resistor, it may be causing you issues.

Here's a picture of mine connected:
Final Breadboard


This is a very basic example of why solderless breadboards are useful.  They are great for prototyping and being able to move components around at will without ruining them or having to desolder.  There are also many other methods of connecting your circuit without solderless breadboards (wire wrapping, perf boards, etc) that weren't discussed, but those types of things are used as you get closer to a final design.  For quick prototyping, solderless breadboards are indispensable!

Other Resources
Java Breadboard Simulator
Don't have a breadboard of your own yet or want to experiment away from home?  Check out the Java Breadboard Simulator by Nick Glass.  It allows you to simulate the circuits too, so you could build the LED circuit from this tutorial on a "virtual breadboard".  Pretty neat!

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Posted 03/22/12 4:44PM by Anonymous Techdoser
Now where do you buy them? I found an interesting place to buy them at Anybody know of some other places?
anonymous techdoser
Posted 01/22/12 2:44AM by Anonymous Techdoser
i did this and blowed an led!
Internal Connection of Breadboards
Posted 12/17/11 10:55AM by ashoksharmaz87
The article is really very good!
Another good link that I found about breadboard is
Short circuit?
Posted 10/16/11 4:34AM by Anonymous Techdoser
Hi, can anyone please explain why putting both the LED leads into holes which are electrically common would create a short circuit? I'd say there would just be no potential difference across the LED, hence it wouldn't light up. Am I wrong?
Posted 04/23/11 1:22PM by Anonymous Techdoser
hello can anyone please help me find out how to connect a switch with the board? Thanks.
attach a switch
Posted 02/23/11 8:11PM by Anonymous Techdoser
how can I connect a six pin right angle slide switch to this set up
Posted 01/05/11 12:09AM by Anonymous Techdoser
This is a clear explantion for anybody tryuing tono about solderlessbreadboard. Thanks a lot
bread board
Posted 10/28/10 8:56AM by ragraghu_k
very good for the learners , its climbing the ladder step by step , i think i can learn a lot
thank you very much
Posted 10/18/10 6:41PM by dvdove
good info,easily understood.
Diagram error
Posted 09/23/10 7:35PM by Anonymous Techdoser
In the diagram showing the LED connection to the battery, the resistor needs to be connected between the positive lead of the battery and the LED. The diagram is shown backwards, therefore, the voltage will be too much and probably blow the LED.
Posted 08/01/10 12:52AM by Anonymous Techdoser
Simple but Useful...:D
Posted 10/31/09 12:01PM by RikiKiki
You've made my day! Very useful!
Thanks for this great site
Posted 10/27/09 3:28PM by Voiseriaffona
Thanks for the information

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You have a good site all very tastefully done!
Posted 10/02/09 6:27AM by rittachkas
You have a good site all very tastefully done! I really liked.
Sincerely Ritt.
Breadboards - How to...
Posted 09/26/09 10:36AM by Anonymous Techdoser
Superb!!! As an electronics novice I'm very thankful for your informative intro...Cheers