WWCode IOT Hackathon 2019

Team #5

Project name : Homeostasis

Team member

Jin Yuan, Jaime Torres, Emily Alden, Soyoung Park, Mary Ann Brennan

Summary

Intelligent window control for energy efficiency and health.

Problem statement:

Limiting IOT climate control to smart thermostat fails to leverage open windows or light blocking shades to save energy

Strategy:

Current IOT climate control solutions focus on thermostat and ignore energy savings and health benefits of heating and cooling via open windows.

• Intelligent window control
• Internal temperature monitoring
• Outdoor weather and air quality monitoring
• Remote control options for accessibility and convenience
• Forecast monitoring to determine optimal time of day to open windows
• Vacation mode for security

Live Demonstration and Presentation:

Click here to watch in YouTube!
see Presentation Slides.pdf

Implementation: Hardware and Software

Part 1. Two Microcontrollers

Purpose: One Microcontroller is used for measuring internal temperature and humidity, publishing to Adafruit io remote hub. The other is used for controlling servo based on the logic, data subscribed from io hub.

• Feather Huzzah ESP 8266
• Pin map link
• Code: adafruitio_21_feed_read_door_control_i.h

Part 2. Switch

Purpose: Manual intervention to open or close window through servo

Part 3. Temperature-Humidity sensor

Purpose: measure and publish internal temperature, and internal humidity every 5sec to io hub. standalone.

• sensor: DHT22
• pin map
• Code: adafruitio_config.h

• Required Arduino Libraries:
  • Adafruit MQTT Library
  • ArduinoHttpClient
  • Adafruit IO Arduino
  • DHT sensor library
  • Adafruit

Part 4. Servo

Purpose: open or close the window

• SG92R Micro servo

• Required Arduino Libraries:
  • https://www.arduino.cc/en/reference/servo

Part 5. IO hub

Purpose: Web host for receiving internal temperature, humidity, realtime dashboard, sending to the main Microcontroller to control servo based on user's logic

Click here to check out realtime dashboard!

Reference for setup

Part 6. Custom Logic

To be published

Wishful thinking(not pursued, but hope to extend in the future):

• Gas sensor
• Temperature/Humidity display
• Magnetic contact switch