If you watch our Youtube channel you probably know that I use a breadboard to test different circuits. I find this method very simple and easy to use when you need to test a project before making the PCB and solder the components.
You can watch this short video where I am trying to explain how to use the breadboard, what is made of and some advices. Afterwards read the rest of this article.
Breadboards come in different sizes but the the electrical connections are basically the same as you can see in the pictures below.
In the first photo is the schematic of electric connections between the breadboard holes and in the second one the metal strips. The top horizontal strips (called bus strips) provide power to the electronic components and the vertical ones (called terminal strips) are used to connect the components as you can see in the picture.
I’ve used Fritzing to design the breadboard and I recommend you use it too. You can see that the 9V battery is connected to the horizontal lines and the transistor + resistors are connected in the terminal area (vertical lines).
Now lets see how the schematic of the circuit looks like:
I’ve tried to use the same colors of the connections as I did on the breadboard so it will be easier to follow the lines and understand how to connect the components. The green line is a jump wire therefore you’ll need to have a lot of jump wires to make the connections. Here is a box that I have + some flexible wires:
Another thing that you should know is that the integrated circuits are connected like this on a breadboard and as you can see the green dots show where to connect components to a certain pin of the IC:
There is not too much to be said about how to use a breadboard, all you have to do is practice more and gain experience. After a while you will see that you can find better and better solutions for connecting your components.