pxt-calliope/docs/projects/banana-keyboard.md

101 lines
2.4 KiB
Markdown
Raw Normal View History

2016-03-26 00:47:20 +01:00
# banana keyboard activity
build a banana keyboard
# micro:bit banana keyboard
![](/static/mb/lessons/banana-keyboard-0.png)
In this project, you will build your own music player micro:bit banana keyboard from household fruit. Project duration: 15 minutes.
## Materials
* micro:bit, battery holder and 2 AAA batteries
* Bananas
* Orange
* Crocodile clips
## Steps
### Step 1
![](/static/mb/lessons/banana-keyboard-1.png)
Using the 1st crocodile clip, connect the end of the crocodile clip onto GND pin on the micro:bit.
### Step 2
![](/static/mb/lessons/banana-keyboard-2.png)
![](/static/mb/lessons/banana-keyboard-3.png)
Using the 2nd crocodile clip, connect the end of the crocodile clip onto the 0 pin on the micro:bit.
### Step 3
![](/static/mb/lessons/banana-keyboard-4.png)
Using the 1st crocodile clip, connect the second end of the crocodile clip onto based of the headphone jack.
### Step 4
![](/static/mb/lessons/banana-keyboard-5.png)
![](/static/mb/lessons/banana-keyboard-6.png)
Using the 2nd crocodile clip, connect the second end of the crocodile clip onto tip of the headphone jack.
### Step 5
![](/static/mb/lessons/banana-keyboard-7.png)
Using the 3rd crocodile clip, connect the end of the crocodile clip onto the 1st crocodile clip already clipped onto GND.
### Step 6
![](/static/mb/lessons/banana-keyboard-8.png)
![](/static/mb/lessons/banana-keyboard-9.png)
Using the 3rd crocodile clip, connect the unattached end of the crocodile clip onto the orange.
### Step 7
![](/static/mb/lessons/banana-keyboard-10.png)
Using the 4th crocodile clip, connect the end of the crocodile clip onto pin 1 on the micro:bit.
### Step 8
![](/static/mb/lessons/banana-keyboard-11.png)
Using the 4th crocodile clip, connect the unattached end of the crocodile clip onto the banana.
### Step 9
![](/static/mb/lessons/banana-keyboard-12.png)
Your banana keyboard is ready!
### Step 10
2016-04-16 01:02:50 +02:00
Connect your micro:bit to your computer using your USB cable and run this script:
```blocks
let sound = music.noteFrequency(Note.C);
input.onPinPressed(TouchPin.P1, () => {
for (let i = 0; i < 5; i++) {
sound = sound + 25;
music.playTone(sound, music.beat(BeatFraction.Sixteenth));
}
});
```
Tap your banana instrument to play sound against... the fruit!
2016-03-26 00:47:20 +01:00
2016-04-01 02:35:44 +02:00
### ~avatar boothing
2016-06-14 17:12:13 +02:00
Excellent, you're ready to continue with the [challenges](/banana-keyboard-challenges)!
2016-04-01 02:35:44 +02:00
### ~