<h3>SparkFun Electronics' preferred foot prints</h3> We've spent an enormous amount of time creating and checking these footprints and parts. If you enjoy using this library, please buy one of our products at www.sparkfun.com. <br><br> <b>Licensing:</b> CC v3.0 Share-Alike You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage. >NAME >VALUE >NAME >VALUE >NAME >VALUE >NAME >VALUE >NAME >VALUE Date: >LAST_DATE_TIME Sheet: >SHEET REV: TITLE: Document Number: >DRAWING_NAME >VALUE >VALUE >VALUE >NAME <b>Schematic Frame</b><p> Standard 8.5x11 US Letter frame <b>SUPPLY SYMBOL</b> <b>SUPPLY SYMBOL</b> <b>Header 10</b> Standard 10-pin 0.1" header. Use with straight break away headers (SKU : PRT-00116), right angle break away headers (PRT-00553), swiss pins (PRT-00743), machine pins (PRT-00117), and female headers (PRT-00115). Slave Daughterboard Headers Signals PD4-PD7 are capable of digital input and output Pins SCK, MISO, and MOSI may be used for SPI or digital I/O VCC provides a regulated 3.3v supply VBAT is a direct line to battery voltage (unregulated) Signals PA0-PA7 are capable of digital input, digital output, and analog input SDA and SCL are used for I2C ONLY and may not be used for digital I/O