R.O.M. System

Team: RISC TakersTeam Members: Paul Banks, Yorick Robinson, Evan Tu, & Hans WeggemanLouisiana State University – Senior DesignOctober 29, 2013

• Database upgrades have been made

• Raspberry Pi has been loaded with the software in order to boot up and wait for remote inputs

• Implemented log in page and switches to interface with GPIO pins

• The PCB for the Power Supply and Switching Component have been designed and will be fabricated this Thursday.

Work Performed to Date

• The code for the MSP430 switching circuit and power reading is complete with the ability to wait for a signal from the Raspberry Pi

• Simulations of the Power Supply and Switching component have been performed.

Work Performed to Date (Contd.)

Database

iOS App

Power

Power Supply Schematic/ PCB Design

Power Supply with Switching Component PCB

Challenges and Changes• Instead of a Shunt Resistor, a Hall-Effect current

sensor will be used for circuit isolation.• Smaller PCB Design using different

Transformerless supply schematic.• X-bee modules have had interfacing issues• For more efficient data storage within the

application, we have made the change from an archiving technique to using Core Data

• Testing has revealed bugs in the iOS data model. The problem is known, but we have yet to find the solution

What’s Left• Connecting iOS application to interface with the

Raspberry Pi database• Interfacing with X-bee between hardware and

software• Printing out the current sensing and switching

circuits• Connect these PCB boards to the MSP430, Xbee

and Hall-effect Sensor.• Testing synchronization between database and

web-connected devices• Testing all elements within the system working

together

What’s Left• Output from the Hall-Effect Sensor must

be adjusted to be compatible with MSP430

• All PCB’s must be soldered and arranged for most compact design

• Housing for the Plug-In’s must be designed and fabricated after PCB arrangements have been decided.

Gantt Chart

Final Presentation• Two separate wall Plug-Ins will be set up with

devices connected• Main Hub will be self starting and set up with an

Ad-Hoc router• An iOS device along with laptop will

demonstrate home automation capabilities along with power monitoring• Being able to demonstrate the convenience of

scheduling devices and logically pairing them