Lesson 3

Lesson Overview

Students are able to understand the function of the buzzer.
Students are able to build an external circuit using a buzzer and program micro:bit to play music on the buzzer.

6.4.2 Describe the function of all hardware used in programming.6.4.5 Produces hardware connections of design products that emit light, sound, and movement.6.4.7 Present the program that has been produced.

BABY SHARK DO DO, DO DO DO DO ~

OPPS! Apparently, sharks have no talent in music.

Hmm... why do we consider sharks as dangerous animals?

Studies show that sharks do not actively hunt humans. In contrast, humans are reported to have killed approximately 100 million sharks worldwide each year.

Click HERE to read the study.

Shark Project

Let’s create a shark project to show our friends that sharks aren’t scary!
Let’s celebrate sharks and stop all shark hunting, especially the practice of serving shark fin soup!

Video 3: Baby Shark Song

Watch and follow this video to get to know how to build a baby shark song.

Materials needed to follow this video:

micro: bit + USB wire + buzzer + 2 alligator clips
Computer
Visit makecode.microbit.org
Paper cups + color paper

TIPS Challenge in the Video

Baby Shark Song Music Note

D - E G G G G G G G

Baby shark, doo doo doo doo doo doo

D - E G G G G G G G

Baby shark, doo doo doo doo doo doo

D - E G G G G G G G

Baby shark, doo doo doo doo doo doo

G-G F#

Baby shark

D - E G G G G G G G

Mummy shark, doo doo doo doo doo doo

D - E G G G G G G G

Mummy shark, doo doo doo doo doo doo

D - E G G G G G G G

Mummy shark, doo doo doo doo doo doo

G - G F#

Mummy shark

D - E G G G G G G G

Daddy shark, doo doo doo doo doo doo

D - E G G G G G G G

Daddy shark, doo doo doo doo doo doo

D - E G G G G G G G

Daddy shark, doo doo doo doo doo doo

G - G F#

Daddy shark

Transcript

Baby shark do do do doo,
baby shark... Hello world! Welcome back to
microbit series. I am Alina and today we will make
baby shark! In the previous video,
We have seen how microbit can be connected to external circuit
using LED. This time we will use buzzer
to program music! Before we begin, prepare
all the project materials first: paper cup, buzzer,
2 crocodile clips and the microbit board.
Let's build the body of baby shark first.
Like usual, you can use your own creativity or follow my method.
To start it off, we will connect the red and black wires on the buzzer.
okay, like this..
Make a hole on the paper cup to insert
the buzzer like this.
Take out wires at the side of the cup.
Next, we cut out the body of baby shark from paper.
Now that the body is completed. We will build the circuit for buzzer.
Red wire of the buzzer is clipped
to pin 0 and the black wire is clipped to GND
on the microbit board.
For MakeCode software,
always use pin 0
for buzzer. Circuit is done. Time to program the
music! On the MakeCode software, we will use
the music block. The block "play tone" will play
the music note that is selected.
We can change the tempo of the music note
1 beat is equivalent to 1 second.
I will put together the codes to play
the note DO RE MI.
Use forever block to ensure
that the music is
played repeatedly. Connect the microbit to
the computer by using a USB cable.
Press download on the software
and save the programming file
into the microbit that is connected just now and
see what will happen. What if we want to combine both
LED and buzzer? Discuss it with your teacher and friends!
Tidy up the project and try to arrange the wires
and microbit board so that they are not seen from the front.
Project baby shark is done!
Your challenge before proceeding to the next episode: try to make
your baby shark to play the real baby shark song.
Happy trying!