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Before the launch in handling I/O GPIO of Raspberry, it is preferable to design a small circuit board that will prevent your lovely raspberry makes the soul in mishandling.

That is why it is important to protect the GPIO.

For information, you have a total of 17 GPIO on the Raspberry PI.


Source : Wiki Raspberry PI

Principle of protection of GPIOs

To prevent entry of Raspberry Pi being subjected to a voltage higher than the recommended max 3.3V
We will make this little montage of each GPIO Raspberry Pi

materials needed

Here is the list of materials needed :

IDC connectors

The purpose of this manipulation is to have a tablecloth that easily connect to the GPIO of Raspberry PI.
This sheet will serve as a liaison between GPIO and card protection.

As a first step: cut the length you need.
20 cm seems to me a reasonable length.

Then you should crimp IDC connectors on the cable.
Insert on the tablecloth then tightened correctly, for that I suggest you a vise or clamp.

And final result (with a nice faux-fitting ^^)

Card design

Mounting : 

And here is the card once welded correctly.

Of course, depending on the type of test that you purchase you will have to adapt it to match your expectations card.
And for some cards (copper bands), armed with a knife, you cut some tracks.


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