micro:bit - Loops

Loops

Sometimes we want to make the micro:bit do something a number of times. We could write the same code out a number of times, but this would be impossible if we wanted it to do it again and again for ever! Even if we wanted it to do something only five times, it would make a lot of code and make the program difficult to read.

A loop is a programming structure that allows the code inside it to be repeated multiple times.

We will look at 3 types of loops.

We already that if we want the mico:bit to do something forever once we have turned the mico:bit on , then we can use the Forever Event.

If you want the program to wait until you have pressed a button before repeating something forever, then we need to use a loop.

The While TRUE Do loop will help us here:

It is possible to tell the micro:bit how many times to repeat using the repeat 'n' times loop

Making Loops

Watch the video below that demonstrates how to create loops

Challenge

Key Words

Loop

A programming structure that allows the code inside it to be repeated multiple times.

Efficient

To use the least amount of resources to successfully complete a task.