Arduino Uno Board Components

I wanted to make some of my Arduino projects smaller and create my own DIY Arduino Uno.   In order to do that  I first had to learn what parts are on the Uno.  That information is spread out all over the internet and some of it is tricky to find.  I decided to do the research and share what I found.  If you decide to create a non SMD/through hole version of an Uno then the names and values listed here should be a helpful start. Just find the equivalent components in their through hole version.

The Arduino Uno is mainly for experimenting. The female header pins make it easy to quickly make connections and test things out. However, this doesn't make for solid and reliable long term connections.

After you are done prototyping, you may want to make a version of your project that is more compact and efficient. You may want to place components on a proto shield. Eventually you may want to eliminate the Arduino Uno board completely and use only it's components that are absolutely required and omit components that are redundant.

Because there are so many tiny components, I broke the board into sections so that the image didn't become cluttered and confusing.

I have labeled the images below to reflect the official Arduino Uno A000066-datasheet. In that datasheet in section 3.1 of the "Functional Overview," entitled "Board Topology," there is a top view of the board based on the Eagle file of the board. The components in that view have reference lc names like "X1" or "U5". Each line below starts with the numbered circle in the picture followed by the "referencelc" then the part name. At the end of each line I have also tried to include the manufacturer's part number. These components can be found on sites like digikey.com or newark.com.

I have also created an Arduino parts list to help. Here is the link: Arduino Uno Parts List