RFID Pet Door Andrew Parr Conner Rocole Ben Peetz Eric Sturm EE 494, Fall 2006

Introduction To design and build an automated system to regulate and monitor a pet’s movement into and out off a structure with minimal human intervention.

Requirements Reliability Reliability Simple User Interface Simple User Interface Safe for the Pet Safe for the Pet Scalable Scalable

Implementation 1.Run Locked Enter Only Exit Only Enter or Exit 2.Manual 3.Program An RFID tag attached to a pet’s collar will be read by a scanner when the pet is in the proximity of the door. If the scanned pet has been programmed by the user to have access to the door, the Pet Door will then unlock. This will allow the pet to open the door and pass through it. Once the door returns to a rest position, the door will be locked until another approved pet is scanned. The system will operate in three basic modes.

Project Overview

Project Components Microcontroller – Atmel AVR Microcontroller – Atmel AVR Antenna – 134kHz Antenna – 134kHz RFID Reader – Atmel Reader IC RFID Reader – Atmel Reader IC Door/Lock - Solenoid Door/Lock - Solenoid User Interface – LCD, 4 buttons User Interface – LCD, 4 buttons Power Section – Wall and Battery Power Section – Wall and Battery Board Layout – Professional PCB Board Layout – Professional PCB

Mini-Project 1 Microcontroller Functionality Demonstration Requirements: The microcontroller should recognize the input from a press button switch and illuminate an LED when the button is pressed. Demonstration Requirements: The microcontroller should recognize the input from a press button switch and illuminate an LED when the button is pressed. Tasks to be performed: Develop the C code necessary to initialize the microcontroller to accept inputs and respond accordingly to them. Tasks to be performed: Develop the C code necessary to initialize the microcontroller to accept inputs and respond accordingly to them. Necessary Equipment: Atmel Atmega16 microcontroller, Evaluation board, LED, Press button switch. Necessary Equipment: Atmel Atmega16 microcontroller, Evaluation board, LED, Press button switch. Approximated Time Table: 2 weeks Approximated Time Table: 2 weeks Team Members: Andrew, Conner Team Members: Andrew, Conner

Mini-Project 2 Antenna Construction Demonstration Requirements: The antenna should transmit a signal at 134 KHz that is viewable on a spectrum analyzer. Demonstration Requirements: The antenna should transmit a signal at 134 KHz that is viewable on a spectrum analyzer. Tasks to be performed: Construct a 47H antenna with a Q factor less than 20. Tasks to be performed: Construct a 47H antenna with a Q factor less than 20. Necessary Equipment: Copper wire, Tape, Spiroband, Screened antenna lead. Necessary Equipment: Copper wire, Tape, Spiroband, Screened antenna lead. Approximated Time Table: 2 weeks Approximated Time Table: 2 weeks Team Members: Eric, Ben Team Members: Eric, Ben

Mini-Project 3 RFID Reader Functionality Requirements: The RFID unit should generate an output signal that is viewable on an oscilloscope when a tag is read. Requirements: The RFID unit should generate an output signal that is viewable on an oscilloscope when a tag is read. Tasks to be performed: Become familiar with RFID reader so that it can recognize and RFID tag. Tasks to be performed: Become familiar with RFID reader so that it can recognize and RFID tag. Necessary Equipment : RFID reader, bread board, antenna, RFID tags Necessary Equipment : RFID reader, bread board, antenna, RFID tags Approximated Time Table: 3 weeks Approximated Time Table: 3 weeks Team Members: Eric, Ben Team Members: Eric, Ben

Mini-Project 4 RFID Unit / Micro Communication Requirements: The microcontroller should illuminate an LED when the RFID reader scans a valid tag. Requirements: The microcontroller should illuminate an LED when the RFID reader scans a valid tag. Tasks to be performed: Develop an interface between the RFID reader and the microcontroller. Tasks to be performed: Develop an interface between the RFID reader and the microcontroller. Necessary Equipment: RFID reader, RFID tags, microcontroller, and evaluation board. Necessary Equipment: RFID reader, RFID tags, microcontroller, and evaluation board. Approximated Time Table: 3 weeks Approximated Time Table: 3 weeks Team Members: Everyone Team Members: Everyone

Mini-Project 5 Microcontroller User Interface Demonstration Requirements: The microcontroller should output a visual display to the user on a LCD screen. Demonstration Requirements: The microcontroller should output a visual display to the user on a LCD screen. Tasks to be performed: Develop code to enable microcontroller to display characters on a LCD screen. Tasks to be performed: Develop code to enable microcontroller to display characters on a LCD screen. Necessary Equipment: Microcontroller, Evaluation board, LCD screen. Necessary Equipment: Microcontroller, Evaluation board, LCD screen. Approximated Time Table: 2 weeks Approximated Time Table: 2 weeks Team Members: Andrew, Conner Team Members: Andrew, Conner

Expenses ATMEL STK500 Development Board$ TI 2000 Micro RFID Reader 134.2K $64.00 TI RFID Card Transponder $15.06 Atmel ATmega16 Microcontrollers$13.12 Philips IC RFID HITAG Reader$5.50

Project Timeline

Current Status Mini-Projects 1 and 2 are complete Mini-Projects 1 and 2 are complete Mini-Project 3 is in progress Mini-Project 3 is in progress Mini-Projects 4 and 5 are scheduled to begin in 1-2 weeks Mini-Projects 4 and 5 are scheduled to begin in 1-2 weeks

Q & A ?