1. BBC Microbit

2. Objective of the lesson
Use Block Editor to make a Compass
All of you will:
Make an arrow change direction as you move the Microbit
Most of you will:
Change the compass display message
Some of you will:
Add in extra directions NE, SE, SW, NW

3. Compass
The compass on the Microbit can detect which direction it is facing
North (N) is 0 degrees
North East (NW) is 45 degrees
East (N) is 90 degrees
South East (SE) is 135 degrees
South (N) is 180 degrees
South West (SE) is 225 degrees
West (W) is 270 degrees
North West (SE) is 315 degrees

4. Add a ‘forever’ loop
Add a variable. Call it degrees and set it to equal the compass heading
We will just display the four main directions
Add if, else if and else statements.
Use the less than < to display the compass direction. We use cut off points of
North East (NW) is 45 degrees
South East (SE) is 135 degrees
South West (SE) is 225 degrees
North West (SE) is 315 degrees

6. Challenge
Change the program so that it displays North, East, South, West instead of N, E, S, W
Use the number of degrees of a 16 point compass to include NE, SE, SW, NW

7. Answers