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Code a micro:bit as a Light Switch
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Code a micro:bit as a Light Switch

Toggle as an on and off light switch.

Topics
Coding
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  • CSTA
    Grades: 3rd, 4th, 5th
    Algorithms & Programming, Algorithms
    Compare and refine multiple algorithms for the same task and determine which is the most appropriate.
    (Read more)
    Grades: 3rd, 4th, 5th
    Algorithms & Programming, Control
    Create programs that include sequences, events, loops, and conditionals.
    (Read more)
    Grades: 3rd, 4th, 5th
    Algorithms & Programming, Modularity
    Modify, remix, or incorporate portions of an existing program into one's own work, to develop something new or add more advanced features.
    (Read more)
    Grades: 3rd, 4th, 5th
    Algorithms & Programming, Program Development
    Test and debug (identify and fix errors) a program or algorithm to ensure it runs as intended.
    (Read more)
    Grades: 6th, 7th, 8th
    Algorithms & Programming, Control
    Design and iteratively develop programs that combine control structures, including nested loops and compound conditionals.
    (Read more)
    Grades: 6th, 7th, 8th
    Algorithms & Programming, Modularity
    Decompose problems and subproblems into parts to facilitate the design, implementation, and review of programs.
    (Read more)
    Grades: 6th, 7th, 8th
    Algorithms & Programming, Modularity
    Create procedures with parameters to organize code and make it easier to reuse.
    (Read more)
  • National Curriculum
    Grades: Year 3, Year 4, Year 5, Year 6
    Design, write and debug programs that accomplish specific goals, including controlling or simulating physical systems; solve problems by decomposing them into smaller parts.
    (Read more)
    Grades: Year 3, Year 4, Year 5, Year 6
    Use sequence, selection, and repetition in programs; work with variables and various forms of input and output.
    (Read more)
    Grades: Year 3, Year 4, Year 5, Year 6
    Use logical reasoning to explain how some simple algorithms work and to detect and correct errors in algorithms and programs.
    (Read more)
  • Curriculum for Excellence
    Grades: P5, P6, P7
    Computing Science, Understanding the world through computational thinking
    I understand the operation of a process and its outcome. I can structure related items of information.
    (Read more)
    Grades: P5, P6, P7
    Computing Science, Understanding and analysing computing technology
    I can explain core programming language concepts in appropriate technical language.
    (Read more)
    Grades: P5, P6, P7
    Computing Science, Understanding and analysing computing technology
    I understand how information is stored and how key components of computing technology connect and interact through networks.
    (Read more)
    Grades: P5, P6, P7
    Computing Science, Understanding the world through computational thinking
    I understand the operation of a process and its outcome. I can structure related items of information.
    (Read more)
  • Florida - NGSSS
    Grades: 3rd, 4th, 5th
    Communication Systems and Computing, Modeling and simulations
    Describe how models and simulations can be used to solve real-world issues in science and engineering.
    (Read more)
    Grades: 3rd, 4th, 5th
    Communication and Collaboration, Communication and collaboration
    Identify ways that technology can foster teamwork, and collaboration can support problem solving and innovation.
    (Read more)
    Grades: 3rd, 4th, 5th
    Communication Systems and Computing, Modeling and simulations
    Create a simple model of a system (e.g., flower or solar system) and explain what the model shows and does not show.
    (Read more)
    Grades: 3rd, 4th, 5th
    Communication Systems and Computing, Human – Computer interactions and Artificial Intelligence
    Explain that computers model intelligent behavior (as found in robotics, speech and language recognition, and computer animation).
    (Read more)
    Grades: 3rd, 4th, 5th
    Computer Practices and Programming, Computer programming basics
    Create, test, and modify a program in a graphical environment (e.g., block-based visual programming language), individually and collaboratively.
    (Read more)
    Grades: 3rd, 4th, 5th
    Computer Practices and Programming, Computer programming basics
    Detect and correct program errors, including those involving arithmetic operators, conditionals, and repetition, using interactive debugging.
    (Read more)
    Grades: 6th, 7th, 8th
    Communication Systems and Computing, Problem solving and Algorithms
    Decompose a problem and create a function for one of its parts at a time (e.g., video game, robot obstacle course, making dinner), individually and collaboratively.
    (Read more)
    Grades: 6th, 7th, 8th
    Computer Practices and Programming, Programming applications
    Select appropriate tools and technology resources to accomplish a variety of tasks and solve problems.
    (Read more)
    Grades: 6th, 7th, 8th
    Communication Systems and Computing, Hardware and software
    Identify and describe the use of sensors, actuators, and control systems in an embodied system (e.g., a robot, an e-textile, installation art, and a smart room).
    (Read more)
    Grades: 6th, 7th, 8th
    Communication Systems and Computing, Human – Computer interactions and Artificial Intelligence
    Design and demonstrate the use of a device (e.g., robot, e-textile) to accomplish a task, individually and collaboratively.
    (Read more)
Age range
8-14+
Duration
40:00
Grades
United States 3rdPacing Guide
United States 4thPacing Guide
United States 5thPacing Guide
United States 6thPacing Guide
United States 7thPacing Guide
United States 8thPacing Guide
Assets
micro:bit Coding Cards
Code a micro:bit to Loop Over a List of Positions
Code a micro:bit to Toggle Positions

Code

Light Switch

00:10

Use a toggle variable to store the state of the RGB LED A. 1 means on, and 0 means off.

When the Button A is pressed, use an if statement to check the value of the variable and then, depending on the value, turn the LED on or off, and toggle the value stored inside the variable.

let toggle = 0
input.onButtonPressed(Button.A, function () {
    if (toggle == 0) {
        sb.setRgbLedColorRGB(sb.rgbLed(SBRgbLed.RgbLedA), 100, 0, 0)
        toggle = 1
    } else {
        sb.setRgbLedColorRGB(sb.rgbLed(SBRgbLed.RgbLedA), 0, 0, 0)
        toggle = 0
    }
})

If using micro:bit for the first time, follow this setup.

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