Day 11

Make a micro:bit tree ornament

MICRO:BIT TREE ORNAMENT

Today you are going to create an interactive ornament with the micro:bit and makecode. You will need simple material you will have in your house and you will create a fun ornament with music for in your tree. And if you have another micro:bit you can use that as a remote control. Have fun and get creative.

Materials

1 micro:bit (and 1 more if you want to make a remote control)
1 Micro USB Cord
1 Battery Pack for micro:bit (and 1 more if you make a remote control)
2 Alligator Clips
1 Mini Speaker (piëzo)
Tape, Scissors, Ribbon
2 top of plastic cups (Frappuccino or tomato cups)

Step 1

Make your code on the MakeCode.com.
You have to add the music items in your code.
You can use this Youtube link with Christmas songs, if you don't know the notes.
You can also use this link, then you will have a working code for you micro:bit.

Step 2

Download the code on your micro:bit. You can use the one-click download.
That is very easy and quick.
If that is not working, use the "normal" download and drag your file out of the download folder to your micro:bit.

Step 3

Now you have to attach your small speaker (piëzo) to your micro:bit.
Attach the alligator clips to the P0 and the GND of your micro:bit.
The other sides of the clips to your piëzo.
Test if the sound is working with your song.

Step 4

Put the micro:bit and the piëzo, cable's and battery pack in one plastic lid
Put the other plastic over the other side, it looks like a ball.
Now you have your Christmas ornament almost ready.
Tape your ornament together with tape.

Step 5

Attach a ribbon to it as well, so you can hang it in your tree.

Step 6

If you want to use another micro:bit as a remote control for your ornament you have to change the code on your micro:bit a little bit.
Both of your micro:bits must be on the same radio channel if you start your micro:bit.
And if you press button A, a signal has to be send to the micro:bit in the ornament.
And the ornament has to do something if the signal is coming in.
You can use this code, or look at it to see how to make your own code.