Cornell University ECE 4760

• Cost
• Datasheets
• Schematics
• Software Code
• Division of Tasks
• Aknowledgements

Cost

This project was done in conjunction with a research group, and the $75 budget has been waived.

Datasheets

• Atmel ATmega324P: Atmel ATmega324P Microcontroller Datasheet
• XBee Wireless Module: XBee 802.15.4 RF Module
• KXSD9-2050: Kionix KXSD9-2050 three-axis accelerometer
• KX__9 Eval Schematic: Kionix Accelerometer Evaluation Board Schematic
• KX__9 Eval Board: Kionix Accelerometer Evaluation Board Pin Layout
• LP2950CZ-3.3-ND: 3.3 Volt Regulator

 

Schematics

• Transmitter Schematic: Wearable Accelerometer and Transmitter
• Receiver Schematic: Receiver Station

 

Software Code

• xbee.c: Transmitter Side Code
• xbee_rx.c: Receiver Side Code
• uart.c: UART Interface Initializer
• uart.h: UART Initializer Header

• Open Source XBee Code from Adam:

• link.c: XBee Link Code
• endian.c: XBee Link Endian Converter
• link.h: XBee Link Code Header
• link_defs.h: Xbee Link Code Header Definitions
• link_interfaces.h: XBee Hardware Interface Header
• router.h: XBee Link Router Header
• endian.h: XBee Link Endian Header

• Matlab Code:

• accelerationGUI.m: Matlab Data Analysis
• accelerationGUI.fig: Matlab GUI

 

Division of Tasks

• Research and Part Acquisition: Vicki and Laura
• Soldering: Vicki
• Matlab Code and Testing: Laura
• XBee Code: Vicki and Laura
• Accelerometer: Vicki and Laura
• Testing: Vicki and Laura
• Website: Vicki
• Documentation: Vicki and Laura

 

Aknowledgements

• We would like to thank Adam Shapiro for his help with the XBee modules. The XBee wireless connection implenented in this project uses significant source code developed by Adam in 2008 at Cornell University. Additionally, Adam provided tremendous help getting the XBee wireless modules running and debugged, and also loaned us two ATmega 324P microcontrollers. We are extremely grateful for his contributions and guidance throughout the project.
• We would like to thank Kionix who provided us with parts and technical support with the accelerometers.
• We would like to thank Bruce Land who assisted us with design, test and debugging, Professors Yingxing Gao and Bob Nafis who provided us with accelerometers and project details, and the TAs who were always around in lab for consultation and helping us with any problems that arose.