Microbits - Lesson 3 _ new

• Computing
• Lower Secondary (Key Stage 3)

Microbit Lesson 3 - Loops

Loops

Touch Logo

Button A

Button B

Pins

Accelerometer

Compass

Reset Button

How did you use selection when you created the rock paper scissors game?

Lesson Objective

By the end of today's lesson you will be able to create a program on the microbits that use a loop (iteration) to control the LED lights on the Microbits.

makecode.microbit.org

Challenge - Loops with the Microbit

In this example we are going to use recursion (a loop within a loop) to make the red LED light up all the LED's on the Microbit.

Can you use the highlighted components to complete the challenge?

The Solution

Space Invaders Game

This next task is CHALLENGING. You may not get all of the parts completed. You must complete the tasks in order, so Part 1 first, then part 2 etc...

You are going to build the Space Invaders game. This will run on the Microbit. You will need to "Watch the video for 30 seconds, pause it and then do what you saw in the previous 30 seconds". 

YOU MUST NOT JUST WATCH THE VIDEO AND LET IT PLAY THROUGH AS YOU WILL NOT REMEMBER THE STAGES!

Part 1 - https://www.youtube.com/watch?v=ImPEoy-d_3w

Part 2 - https://www.youtube.com/watch?v=pwOK0E8Isg4

Part 3 - https://www.youtube.com/watch?v=6P96fgX67fw

Extension

Plenary

A Microbit has an accelerometer, what does this do?

1. Measure temperature
2. Measure Movement
3. Measure direction
4. Measure light

What is the part within the blue box called?

1. Compass
2. USB Connector
3. CPU
4. LED Lights

When button A is pressed what will happen?

1. Hello will show on the Microbit
2. A heart will show on the Microbit
3. Hello followed by a heart will show on the Microbit
4. Nothing will happen

What do you think this code makes?

1. Calculator
2. Clock
3. Mood Generator
4. Dice

What do we call the section of code in the blue box?

1. Loop
2. Input
3. Selection
4. Variable

What is the purpose of a loop?

1. To print a message.
2. To repeat a set of commands multiple times.
3. To delete code.
4. To end a program.

Which loop should you use if you want to repeat a set of commands a specific number of times?

1. If statement
2. While loop
3. Do-while loop
4. For loop