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Documentation and Materials


Cost

As of right now, the components each vent unit will cost around $18. Each temperature sensor will be around $15. With the addition the expenses of the Pi, touchscreen, and other materials (listed below), the total cost of a system with 3 vents, 2 temperature sensors and 1 thermostat will be about $200.

Bill of Materials

Components

  • Raspberry Pi 3 B+
  • 3.5" Touchscreen for Raspberry Pi 3 B+
  • 2x NodeMCU ESP8266 WiFi Microcontroller
  • 3x Atmega328p-pu
  • MCP9808 Temperature Sensor
  • 3x Motor Driver Board
  • 3x Low Power DC/Stepper Motor/Servo
  • 1x Standard 4" x 12" Vent Register (For Prototype)
  • Filament roll for 3D printing (White)
  • Gears for stepper motor to connect vent door linkages
  • 3x NiMh Battery for Vent
  • 3x NiMh Charging/Discharging Protection Circuit
  • Breadboards for Prototyping
  • Jumper wires and alligator clips
  • Various LEDs

Materials and Hardware for Manufacturing, Testing, and Demonstrating

  • 3D Printer
  • 1x Vent duct
  • Flexible duct hose (1' or shorter)
  • 2x Flexible duct hose clamps
  • Anemometer
  • Heat Gun
  • Multiple Micro-USB Cables

Software

  • Autodesk Eagle
  • Arduino Development Environment
  • Visual Studio Code
  • Python3
  • IntelliJ IDEA (Java Programming)
  • AVR-gcc
  • AVR libc
  • AVRdude
  • Fusion 360
  • Slic3r 3D Printing Toolbox