Microbit Radio Games

INDEX

Index of Computer Science Terms defined for Grades K-12

Boolean: A variable that can only be true or false.

The Code:

let Fed = false //Fed is the boolean


    input.onButtonPressed(Button.A, function () {
        Fed = true //A button press-> Fed is true
    })
    input.onButtonPressed(Button.B, function () {
        Fed = false //B button press-> Fed is false
    })
    basic.forever(function () {
        if (Fed == true) {
            basic.showIcon(IconNames.Happy)
            //the happy face will only show if Fed==true
        } else {
            basic.showIcon(IconNames.Sad)
            //otherwise it will be a sad face
        }
    })

boolean_Fed.png

Code available here

Conditional: A block of code that only occurs if a specific statement chosen by the programmer is true.

The Code:

input.onButtonPressed(Button.A, function () {
    myGuess += 1
})
input.onButtonPressed(Button.B, function () {
    myGuess += -1
})
// the conditional is the "if...else" code below
input.onButtonPressed(Button.AB, function () {
    if (myGuess == secretNumber) {
        basic.showString("Congrats!")
        // if guess equals secretNumber you win!
    } else {
        basic.showString("Try Again!")
        // if guess doesn't equal secret try again
    }
})

let myGuess = 0
let secretNumber = 0
secretNumber = 5
myGuess = 0

Block Code Example

Code available here

Variable: A container to store one piece of information. This could be a number, a String, a boolean etc.

The Code:


let favColour = "" // create the container, give it a name and store information in it

input.onButtonPressed(Button.A, function () {
    favColour = "blue" // press A to change the information in the container to "blue"
})
input.onButtonPressed(Button.B, function () {
    favColour = "red" // press B to change the information in the container to "red"
})
input.onButtonPressed(Button.AB, function () {
    basic.showString(favColour) 
}) // display whatever information stored in the container

variable_favColour.png

Code available here

Name-Value-Pair: A special variable that assigns a name of type string to a numerical value. These values are treated as a pair and are sent together and can be evaluated together.

The Code:

input.onGesture(Gesture.Shake, function () {
    radio.sendValue("Temperature", input.temperature())
})
//name-value-pair used in the code below
radio.onReceivedValue(function (name, value) {
    basic.showString(name)
    basic.showNumber(value)
})

name-value-pair_displayTemp.png

Code available here