Start by creating a new project. Visit the Microbit coding website at https://makecode.microbit.org/ and click on 'New Project'. Give the project a suitable name, such as 'Digital Dice'.

We will need a variable to store what number we roll. Create a variable called roll and we will use this in the next step.

Microbit: How to create a variable

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In the Variables toolbox, create a new variable by clicking the 'Make a Variable' button.

Once you click this button a box will appear asking what you want to call your variable. Give it a name that reminds you what you will be using it for. For example, if you wanted to keep track of your score in a game, you would create a variable called 'score'.

In this step, you will code the Microbit to generate a random number when it's shaken. This simulates the action of shaking a dice to get a number. Add the following code:

input.onGesture(Gesture.Shake, function () { let roll = Math.randomRange(1, 6) })

This code uses an input event tied to the 'Shake' gesture, and generates a random number between 1 and 6, storing it in the variable 'roll'.

Next, you will code the Microbit to display the number that was generated from the dice roll. Add the following code:

input.onGesture(Gesture.Shake, function () { 
let roll = Math.randomRange(1, 6) 
basic.showNumber(roll) 
})

This code extends the previous one by using the 'showNumber' function to display the 'roll' variable on the Microbit's LED matrix.