Automatic Doggy Door Group #34 Final Design Report Mechatronics (MECH 307) Submitted Dec. 7, 2007 Nick Echter, Markus Lutz, Jon Forster, Jeff Belval

Photographs and Figures of Final Design

Total Assembly user interface with keypad, speaker, and LCD food outlet water dispenser and float valve assembly doggy door and exposed floor switch Front View Back View Fig. 1Fig. 2 food dispensing system with food dispenser and stepper motor IR receiver hood door motor/counter weight system watering system with reservoir and solenoid valve on/off solenoid valve switch

Food and Water Outlets (At the Front of the Assembly) Fig. 3 Fig. 4 Food Outlet water line from reservoir Float switch housing (float switch is located within) Float switch Fig. 5

Detailed View of Insides 12 V DC door motor water reservoir solenoid valve Power supply for motor, valve and circuitry counter weight and guiding track housing for relay switch on/off solenoid switch back of user interface main PIC sound chip stepper motor food dispenser potentiometer voltage regulator voltage regulator EDE 702 Stepper motor chip Fig. 6Fig. 7

Close Up View of Circuit Housing Fig. 8 main PIC EDE 702 sound chip stepper motor Stepper motor chip voltage regulator push button activator for sound recorder potentiometer microphone for sound recorder sound projector LCDLED

IR Sensor and Motor Control System infrared sensors mounted above glass (viewed from below) LMD H bridge Motor control PIC with inputs from the top, step, and floor switches; and IR sensors infrared sensors infrared output LED’s worn on dog collar top view Fig. 9 Fig. 10 Fig. 11

Food Dispenser Fig. 12Fig. 13 Fig. 14 valve rotated by stepper motor Pushes the food out the bottom hole total assembly funnel guides food into valve housing

floor switch top switch step switch Door Motor Control Switches Face Plate speaker keypad LCD Potentiometer (for display contrast) recording activator switch sound input LED Fig. 15 Fig. 16 Fig. 18 Fig. 17