# First Eagle Board, Will you Take a Look?

**URL:** <https://community.sparkfun.com/t/first-eagle-board-will-you-take-a-look/24363>\
**Category:** PCB Design\
**Created:** [June 9, 2012, 11:41am UTC](https://community.sparkfun.com/t/first-eagle-board-will-you-take-a-look/24363 "2012-06-09T11:41:22Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![cshutchinson](https://avatars.discourse-cdn.com/v4/letter/c/ad7895/32.png) [@cshutchinson](https://community.sparkfun.com/u/cshutchinson)\
**Post date:** [June 9, 2012, 11:41am UTC](https://community.sparkfun.com/t/first-eagle-board-will-you-take-a-look/24363/1 "2012-06-09T11:41:22Z")

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I have my first eagle board attached. Will you take a look and see if I have any glaring errors or if I misunderstood the process in some way? Thank you.

One tutorial on eagle suggested a V+ plane on top of the board and GND plane on the bottom. Sparkfun seems not to use these in some of the boards I have downloaded and viewed. What should I do?

The vreg is an LM1117A and I am expecting it to output 5V. I used the suggest application from the data sheet.

Eagle files are here \<old files removed!\>

[http://www.trailingbit.com/wp-content/u … .14-PM.png](http://www.trailingbit.com/wp-content/uploads/2012/06/Screen-shot-2012-06-09-at-3.11.14-PM.png)

(Power traces increased in size)

I designed this board to hang on the back of a 4x20 LCD connected by the 16 pin header. That is why I didn’t add standoffs. The dimensions are 2.3 x 2.45. I am hoping to match the footprint of the LCD, but I might need some minor adjustments. I still need to do a 1:1 test print, but I am waiting for the surface mount components to arrive.

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**Author:** ![cshutchinson](https://avatars.discourse-cdn.com/v4/letter/c/ad7895/32.png) [@cshutchinson](https://community.sparkfun.com/u/cshutchinson)\
**Post date:** [June 9, 2012, 11:55am UTC](https://community.sparkfun.com/t/first-eagle-board-will-you-take-a-look/24363/2 "2012-06-09T11:55:30Z")

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What I don’t understand is that I see an airwire near middle of board (fixed now in image above), but DRC checks fine. How can that be?

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**Author:** ![WethaGuy](https://avatars.discourse-cdn.com/v4/letter/w/6de8d8/32.png) [@WethaGuy](https://community.sparkfun.com/u/WethaGuy)\
**Post date:** [June 9, 2012, 1:06pm UTC](https://community.sparkfun.com/t/first-eagle-board-will-you-take-a-look/24363/3 "2012-06-09T13:06:07Z")

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I just looked at the image not the Eagle files. You need to implement a ground plane on both sides and use ratsnest. That will simplify the layout tremendously. The grounding you have now doesn’t appear to be sufficient. The power leads also seem a little small (just eyeballing it).

Do the groundplane/ratsnest and update the post.

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**Author:** ![cshutchinson](https://avatars.discourse-cdn.com/v4/letter/c/ad7895/32.png) [@cshutchinson](https://community.sparkfun.com/u/cshutchinson)\
**Post date:** [June 9, 2012, 7:20pm UTC](https://community.sparkfun.com/t/first-eagle-board-will-you-take-a-look/24363/4 "2012-06-09T19:20:05Z")

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Thank you. Here is the revised board.

[http://www.trailingbit.com/wp-content/u … .13-PM.png](http://www.trailingbit.com/wp-content/uploads/2012/06/Screen-shot-2012-06-09-at-3.12.13-PM.png)

And new eagle files [http://www.trailingbit.com/wp-content/u … 06/RTC.zip](http://www.trailingbit.com/wp-content/uploads/2012/06/RTC.zip)