133 lines
4.9 KiB
Markdown
133 lines
4.9 KiB
Markdown
# Project: Radio project
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For this project, students should work in pairs to design a project that incorporates radio communication to send and receive data in some way. Some projects may have two separate programs: One that receives data, and one that sends data. Students might each choose to submit one program in that case.
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In other cases, a pair of students might submit one program that has both sending and receiving code in it, and the same code is uploaded to two or more micro:bits.
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## Project Ideas
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### Stop, thief!
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Design an alarm system for your bedroom that alerts you with a screen animation when someone opens your door. You can mount one micro:bit on your door and use the accelerometer to send a signal over the radio when it is being moved.
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### Interactive art
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Create a piece of interactive artwork that receives something as input over the radio from another micro:bit, and displays something based on that as output.
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### 3-Note keyboard
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This is a simple three-note keyboard that uses wooden paint stirrers and copper tape to make a connection to each of the three pins on the micro:bit.
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Keyboard with copper tape connections
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When a key is pressed, it sends a number over the radio to a second micro:bit that plays the appropriate tone over a set of earbuds. This allows you to use each of the three pins on the first micro:bit to play a different tone.
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Second micro:bit that plays the notes
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#### 3-Note keyboard program
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```blocks
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let sound = 0
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radio.onDataPacketReceived( ({ receivedNumber }) => {
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if (receivedNumber == 0) {
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sound = 349
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music.playTone(sound, music.beat(BeatFraction.Half))
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} else if (receivedNumber == 1) {
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sound = 392
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music.playTone(sound, music.beat(BeatFraction.Half))
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} else if (receivedNumber == 2) {
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sound = 440
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music.playTone(sound, music.beat(BeatFraction.Half))
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}
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})
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input.onPinPressed(TouchPin.P0, () => {
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sound = 0
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radio.sendNumber(sound)
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basic.showLeds(`
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. . # . .
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. # . # .
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. # . # .
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. # . # .
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. . # . .
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`)
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basic.pause(500)
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basic.clearScreen()
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})
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input.onPinPressed(TouchPin.P1, () => {
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sound = 1
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radio.sendNumber(sound)
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basic.showLeds(`
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. . # . .
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. # # . .
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. . # . .
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. . # . .
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. # # # .
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`)
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basic.pause(500)
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basic.clearScreen()
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})
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input.onPinPressed(TouchPin.P2, () => {
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sound = 2
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radio.sendNumber(sound)
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basic.showLeds(`
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. # # # .
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# . . # .
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. . # . .
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. # . . .
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# # # # .
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`)
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basic.pause(500)
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basic.clearScreen()
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})
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basic.showLeds(`
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# # # # #
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# # # # #
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. . . . .
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. . . . .
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. . . . .
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`)
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basic.clearScreen()
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```
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### Radio tennis
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In this project, the tennis racquets alternate displaying a ball on the micro:bit LED screen. When you swing the racquet, the ball disappears from one micro:bit display and shows up on the other micro:bit's display.
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Radio Tennis racquets (made from cardboard)
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## Reflection
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Have students write a reflection of about 150–300 words, addressing the following points:
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* What kind of Project did you do? How did you decide what to pick?
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* How does your project use radio communication?
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* Are there separate programs for the Sender and the Receiver micro:bits? Or 1 program for both?
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* Describe something in your project that you are proud of.
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* Describe a difficult point in the process of designing this program, and explain how you resolved it.
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* What feedback did your beta testers give you? How did that help you improve your design?
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## Assessment
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**Competency scores**: 4, 3, 2, 1
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### Radio
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**4 =** Effectively uses the Radio to send and receive data, with meaningful actions and responses for each.<br/>
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**3 =** Effectively uses the Radio to send or receive data, with meaningful actions and responses for each.<br/>
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**2 =** Use of Radio is incomplete or non-functional and/or tangential to operation of program.<br/>
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**1 =** No working and/or meaningful use of Radio.
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### micro:bit program
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**4 =** micro:bit program:<br/>
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`*` Uses Radio blocks in a way that is integral to the program<br/>
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`*` Compiles and runs as intended<br/>
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`*` Meaningful comments in code<br/>
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**3 =** micro:bit program lacks 1 of the required elements.<br/>
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**2 =** micro:bit program lacks 2 of the required elements.<br/>
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**1 =** micro:bit program lacks all of the required elements.
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### Collaboration reflection
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**4 =** Reflection piece addresses all prompts.<br/>
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**3 =** Reflection piece lacks 1 of the required elements.<br/>
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**2 =** Reflection piece lacks 2 of the required elements.<br/>
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**1 =** Reflection piece lacks 3 of the required elements.
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