F12: All Your Base are Belong to You

All Your Base are Belong to You

File:CmpE146 F12 AYB Raspberry-pi.jpg

Abstract

Security and Home Automation (SHA) is a complete system that will manage home automation and security with the use of Wi-Fi. The system will be a compilation of multiple devices that will work with a microcontroller as the hardware subsystem, in which each device will incorporate one or more components.

Objects & Introduction

This system will automate your security and home functions for a higher quality of life

Security Thermal Sensor

• Security Thermal Sensor will capture movement and heat from intruders
• Security Thermal Sensor will send an alarm signal to the server after the thermal value reaches a certain threshold
• Alarm Signal from the Security Thermal Sensor will be sent to the server through Wi-Fi communication

Raspberry Pi or Receiving Server (server)

• Server will receive data from the Security Thermal Sensor
• Server will receive alarm signal and be set to an alarm state until it is deactivated

Team Members & Responsibilities

• Christopher Cheng
  • Wi-Fi Hardware and Software Design
• Tyler Gray
  • Raspberry Pi (server) Research and Web UI
• Prateek Grover
  • Thermal Motion Sensor Hardware and Software Design

Schedule

Week Number	Scheduled Items	Actual
1	Identify Team Identify Hardware Acquire Hardware Design Security Sensor Wire Diagram	Done Done Done Done
2	Wire up Security Sensor to the LPC MicroController and read sensor data Have Raspberry Pi Wi-Fi Connectivity Set up communication from MicroController to Hercules using Wi-Fi Module	Done Done Done
3	Connect Server to Security Sensor Slave Module Create Security Sensor Alarm Protocol Establish Communication Between Raspberry Pi and Microcontroller through Wi-Fi	Done Done Done
4	Create Basic UI	In Process
5	Integrate UI with the Server	N/A
Week Number	Scheduled Items	Actual

Parts List and Cost

Item Number	Items	Cost
1	Raspberry Pi	$86.54
2	3x RN-XV WiFly Module - Wire Antenna WRL-10822	Total = $104.85 Each = $34.95
3	Infrared Thermometer - MLX90614 SEN-09570	$19.95
Week Number	Scheduled Items	Items Completed

Design and Implementation

Hardware Design

Figure 1: Hardware design for I2C Ir Thermal Motion Sensor and UART Wifly

Figure 2: Implementation of Sensor/Wifly Design

Figure 3: Raspberry Pi Hardware

Testing and Technical Challenges

Testing

File:CmpE146 F12 AYB WiFlyTerminalUARTCom.PNG

File:CmpE146 F12 AYB RaspPiTerminal.png

Figure 4: Wifly UART and Raspberry Pi Communication Test

Technical Challenges

Infrared Thermometer MLX90614

• I2C will not read out data (FIXED)
  • LPC2148 Ground and Power pins did not have good connection, we had to re-solder some pins