1. Robert Fleming Vishak Ganesh Vu Tang Viet Nguyen Kevin Clark
Automatic Pet Feeder
Robert Fleming
Vishak Ganesh
Vu Tang
Viet Nguyen
Kevin Clark

2. Modified automatic pet feeder Wireless beacon on a pet collar

3. Project Overview Product regulates feeding amount for pets
Animal controls its feeding cycle
Food is kept fresh
Modification is from an existing design
Product Components

4. Background
Similar products on market
Improved existing design

5. Design Approach

6. Design Approach

7. Interconnects ID From To Description C1
Transmitter Antenna, Pin 24 of U1
Receiver Antenna, Pin 28 of U3
418 MHz Radio Signal C2
Valid Transmission, Pin 11 of U3
Input, Pin 3 of U4
Detection of Collar Beacon C3
Pin 5 of U4
Pin 2 of U6
Control 3V C4
Relay
Electric Motor
Closed Circuit Driving AC Motor Inside Pet Feeder

11. Tradeoffs and Design Considerations
Specifications
Planned
Achieved
Battery
Small cell battery
3V Coin Cell, mAh typical
Transmitter Current Draw (On)
TBD
~1mA
Unique Identifier
16 or 32 bit
10 digit binary
Effective Range
3-6 feet
3-6 feet, adjustable
Feed Rate
.5 oz/20 seconds
Motor Power
6 Watt
Battery Life
6 Months
100 Hours per Cell
Food Capacity
5 Lbs
Transmitter Ping Time
< 2 minutes
~10 seconds
Transmitter Weight
< 6 ounces
Feeder Mechanism
Powered Auger feeder
Timer
Minute Accuracy
Original Timer Abandoned
Communication
TBD EM Spectrum
418 Mhz Radio

12. Alternatives
RFID IR
Cypress
Antenna
Radio Modem

13. TXE/RXD 418-KH2

14. Marketing & Cost Analysis
Existing timer based products have limited features:
Ergo AutoPetFeeder (right) – ($108)
Le Bistro Feeder (left) – ($80)
Additional and beneficial features exist with our product

15. Prototype Costs Item Qty Cost Total Dog Feeder 1 $100 Microcontroller
$15
Relay $2
Batteries 10
$0.5 $5
Transmitter
$10
Receiver
$16
Power Supply
Misc Parts 
20%
$32
$190

16. Production Costs Development Costs $62,149 Based on: 1,500,000 units
Parts Cost 50
Assembly Labor 6
Testing Labor 3
Production Costs
144
Profit 21
12.40%
Selling Price
$165
Total Revenue
$247,500,000
Total Profit
$30,781,601

17. Future Work
Battery Life
Auger speed
Packaging

18. More than 140 million dogs and cats in the United States- every one of them eats!