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Smart House

Introduction​

In this project, we will learn how to build a smart house. By combining the previous courses and structural components, we will create a comprehensive case featuring a smart clothes drying rack, temperature-controlled fan, temperature-humidity reminder, and energy-saving lights.

Teaching Objectives​

  • Review the previously learned courses.
  • Complete the comprehensive production of the overall demonstration case.

Teaching Preparations​

Before starting the teaching, please ensure you have prepared the following necessary materials:

ImageNameQuantityRemark
Smart Home Explorer Kit1
micro:bit1Prepare separately
PC1Prepare separately

These materials will provide you with a complete experience to ensure you can smoothly proceed with subsequent operations and learning. If you have prepared the above, we can continue to the next step.

Course Introduction​

In the previous courses, we learned about cases such as the smart clothes drying rack, temperature-controlled fan, temperature-humidity reminder, and energy-saving lights. In this lesson, we will build a comprehensive small house that integrates all these functions into a smart house.

Project Production​

Hardware Connection​

  • Connect the water level sensor to the J1 interface of the Petal Base Expansion Board.
  • Connect the fan module to the J2 interface of the Petal Base Expansion Board.
  • Connect the RGB light to the J3 interface of the Petal Base Expansion Board.
  • Connect the Adapter to the J4 interface of the Petal Base Expansion Board.
  • Connect the 180-degree servo motor to the S1 interface of the Adapter.
  • Connect the temperature-humidity sensor and OLED display to the IIC interface of the Petal Base Expansion Board.

Programming Platform​

We usually use the graphical programming platform makecode to program the micro:bit.

Programming platform entry: https://makecode.microbit.org/

Create a New Project​

Open https://makecode.microbit.org/.https://makecode.microbit.org/

Create a new project.

Enter the project name and click Create.

Add Software Libraries​

In the makecode programming interface, click Extensions in the Toolbox.

In the pop-up page, search for petal and click to select the petal software library.

Write the Program​

Example program: https://makecode.microbit.org/_1HFgEsKExWMq

You can also directly download the program through the following web page.

How to Download the Program to micro:bit?​

Connect the PC to the micro:bit V2 using a USB cable.

After a successful connection, a drive named MICROBIT will be recognized on the computer.

Click the icon in the lower left corner，and selectConnect Device。

click。

click。

In the pop-up window, select BBC micro:bit CMSIS-DAP, then select Connect. The micro:bit is now successfully connected.

Click to download the program.

Results​

  • Smart Lighting: The rainbow light is controlled by ambient light.
  • Smart Clothes Drying Rack: Detected by the water level sensor, the drying rack automatically retracts when rain is detected.
  • Temperature-Controlled Fan: Automatically regulates temperature.
  • Living Environment Detection: The OLED display shows real-time temperature, humidity, noise, light intensity, and whether it is raining.