Transcript ex1ppt

Electrical Engineering and Computer Science
EECS373 - Design of Microprocessor-Based Systems
DEN - The “Smart” Thermostat
Ian Burris, Kevin Nasto
[email protected], [email protected]
Introduction
In a world of advanced
electronic devices like
smartphones, why do
thermostats look the same as
they looked twenty years
ago?
Problem Description: Standard temperature sensors are outdated
• Standard temperature
• Standard temperature sensors• Standard temperature
sensors have ugly, hard-todon’t account for rooms that aresensors are energy
read displays
unevenly heated/cooled
inefficient
• DEN has a large easy-to• DEN computes an average of • DEN learns from habits
read color graphics display
several wireless sensors
and allows user to
control temperature from
the
net
Proposed Solution: Redesign to match with current technology
Communication & Sensors
• UART
interfacing
• Analog to
Digital
Conversion
• Interrupt on
key-press
• Interrupt on
UART data
receive
• Color OLED
graphics
display
• Wireless
communication
with XBee radio
• PCB design
Conclusion
With today’s advancing technology, it no longer makes sense to use the thermostat
designs of the past. The DEN allows the user to save energy and live at a more
comfortable temperature while also providing an intuitive, easy-to-read interface.