Audible teleporting duck

What is it?

Make a duck fly from one micro:bit to another and hear a ‘hello’ sound when it lands. This project will help you learn about the micro:bit's radio function.

How it works

• The program should be downloaded onto two micro:bits to work.
• The program uses radio to send a message from one micro:bit to another.
• Both micro:bits should be set to the same radio group number (which can be any number from 0 to 255) in order to be able to communicate. In the code below, the radio group is set to 23. In a large class setting, teachers should give each pair of students a unique number so that their code does not interfere with others' in the class.
• Shake your micro:bit to send the duck from your micro:bit to your friend's micro:bit. When your micro:bit’s accelerometer detects the movement, the program sends a radio signal and clears your micro:bit’s LED display.
• When your friend’s micro:bit receives a radio signal, it shows a duck on their LED display and plays a ‘hello’ sound.
• Your friend can shake their micro:bit to send the duck back to you.

What you need

• a V2 micro:bit
• MakeCode editor
• battery pack

Code your project

Here are the blocks you need to make the project - now put them together.

Step-by-step instructions

1. Open the project to find the blocks you need using the buttons above.
2. Find the radio set group 23 block and put it into the on start block. Change the number 23 to a different number if you need to.
3. Find the clear screen block and put it inside the on shake block.
4. Then find the radio send string ‘DUCK’ block and put it inside the on shake block under the clear screen block.
5. Find the show icon (duck) block and put it into the on radio received receivedString block.
6. Find the play hello until done block and add it under the show icon (duck) block inside the on radio received receivedString block.
7. Download the program to your micro:bit, attach a battery pack, and try it out!

Make it your own

• Change the duck in the show icon block to a different icon using the drop-down arrow. What other things can you throw to a friend? Make sure you make the changes to the programs on both micro:bits in your group.
• Change the sound hello in the play hello until done block to a different sound using the drop-down arrow. What other noises can you make?

Example of a completed project

Take a peek at some completed code.