# Review my schematic?

**URL:** <https://community.particle.io/t/review-my-schematic/11804>\
**Category:** Hardware\
**Created:** [May 14, 2015, 9:18pm UTC](https://community.particle.io/t/review-my-schematic/11804 "2015-05-14T21:18:58Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![rsteckler](https://avatars.discourse-cdn.com/v4/letter/r/e495f1/32.png) [@rsteckler](https://community.particle.io/u/rsteckler)\
**Post date:** [May 14, 2015, 9:18pm UTC](https://community.particle.io/t/review-my-schematic/11804/1 "2015-05-14T21:18:58Z")

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I’m new to this, and I’m trying my hand at Eagle to create a custom PCB. Can I get some feedback on the schematic before I create a board file?  
The board on the left is an mfrc522 RFID breakout board that I’ll connect with a breakaway header connecter. The center board is the spark core (2x header connectors). The board on the right is a VS1053 mp3 breakout board (2x header connectors).  
There are two “satellite” boards that I’ll place elsewhere using the jumper headers at the bottom: one is a hall switch board and the other is the audio jack board.

[![](http://i.imgur.com/qnTXHWD.png?1) ](http://i.imgur.com/qnTXHWD.png?1)

Thanks for any feedback!!!  
Ryan