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The easiest way to make Screw Shield designed for Arduino pro mini at Home

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A screw shield is used to extend and transform the sides of Arduino and Arduino variants into screw nature terminal blocks. Usually, the wing-like screw shield is composed of 18 terminals on its pin side where 16 are normal while 2 are the extra GND terminals. Following are the few of the salient features of screw shield.
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Salient Features of a Screw Shield

A screw shield is compatible with Arduino and Arduino variants.

Consists of SPI extension border

Completely stackable

Machines Required in the Construction of Screw Shield

Soldering Iron

Drill machine

A hacksaw

Components Required for Construction

An Arduino Pro Mini is the integral part required for Screw Shield.

24 Headers (Female)

A stripe board

24 Screw Terminals with 2.54 mm pitch

Solder
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Step by Step Instructions about Making a Screw Shield

Few Points to be kept under Consideration before Making the Screw Shield

1. You should take a stripboard which resembles much like a breadboard having strips along one side going towards the other,

2.take the pins and fuse them into the stripe board with the help of copper rails plugged in from beneath,

3.these copper rails will help in transmitting electric current to all the components joined to the stripboard,

4.now connect the connect screw terminals of 2.54 mm pitch to each pinhole without making a gap that is a perfect setup for an Arduino Pro Mini,

5. Avoid connecting programming pins to anything because these will only use for programming purpose through FTDI.
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Making of a Screw Shield

Cut a couple of female headers and take 12 female pins for each side. Connect the 12 screw terminals and join each nail with a separated rail. Take the female headers to the female pins on your Pro Mini in such a way that they can be easily positioned. Set these placed female headers adjacent to the screw terminals fixed on the board. If there are any remaining screw terminals, locate them on the other side of the board. This is the final composition which now requires soldering. Let us have a more in-depth look at this essential step.

Soldering the Shield

Though it seems complicated, it is a straightforward part of the whole procedure.
All you have to do is just to put the board upside down and get started with fixing the screw terminals and female pins to the board.
The real way of doing this fixing is to connect the first and the last one as it will give you a correctly assembled and secure board.
Making the connection of bins to the board will heat up and can easily connect to the solder. Now comes the cutting and finalising the assembling procedure.

Shaping the Screw Shield

Now shape and cut the screw shield according to your requirement and keep the remaining piece for future use in any other prototyping project. You can use a hacksaw for this purpose.

Few Important Tips

Make a breaking hole between both sides of the connection to avoid any mishap the relationship between both parties is broken with the help of 2mm drill bit. Dig into the pinhole to secure the screw shield from any breakage in the Pro Mini board.
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Remove all kind of copper around the pinhole by drilling into each of them between each female header. Thus drilling will distort the connection between two sides and make 24 individual connections.
Here we go, your Pro Mini screw shield is ready to use,
enjoy the most secure and reliable connections with your hand made screw shield.

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Stichworte: custom pcb, pcb, screw shield Stichworte bearbeiten
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