All Weather Doghouse

Climate Controlled Dog

House

Overview

Introduction

•Currently Available Heated Doghouses

• Non Programmable Thermostats • No Temperature Feedback

• Cooling Uncommon

•My Dog House

• Provides Temperature Feedback • Expand Heating/Cooling

Goals

•Give a pet owner the ability to leave animals outside on Laramie winter nights

•Provide peace of mind

•Allowing review of temperatures over the last 72 hours.

Features

• Inside/Outside 3 Day Temperature History

• Programmable Thermostat that will turn on heater or open a

vent/supply power to a fan

• Programmable Outdoor Flashing Light (Indicates Programmable “Extreme” Thresholds Crossed) • Easy to navigate menu

New Haven Graphics

Display/Human Interface

New Haven Graphics Display

4 way directional switch 5th _{push button to turn on}

12 V light and disable

Hardware(cont.)

Base Board heater is 2 feet, 120 V and 375 Watt

Linear Actuator 2.5 A max, 15 lbs of force max

Double H Bridge Purchased in a kit. Used to drive

linear actuator and 12 V DC Light Bulb

Hardware(cont.)

Processing at 324:

• Atmega324: Stored Temperatures as chars

• 5 temperatures/hour (every 12 min)

• 120 temperatures/day

• 3 days of temperatures * 2 for in and out = 720 Bytes

Cost

Quantity Cost/Part New Haven Display 1 $30.00

LM 34 2 $3.00 Linear Actuator 1 $70.00 Vent 1 $25.00 Heater 1 $30.00 Dual H Bridge 1 $20.00 Micro Controller 1 $5.00 Resistors/Capacitors $5.00 Schmit Trigger 1 $2.00 4 Way Switch 1 $1.00 Regulators 2 $3.00 AC/DC Converter 1 $45.00 Building Materials $55.00 Stall Mat 1 $35.00 Total: $335.00

Improvements/Lessons

Learned

• Include H-Bridge In PCB

• Correct Temperature Sensor Circuitry

• Start Sooner and Go Slow

• I’ve Learned the Importance of Planning Ahead in Coding and Hardware

Conclusion

Thanks To: