48 lines
1.1 KiB
Markdown
48 lines
1.1 KiB
Markdown
# love meter blocks activity
|
|
|
|
Create a love meter with the micro:bit
|
|
|
|
### ~avatar avatar
|
|
|
|
Welcome! This activity will help you create a love meter with the micro:bit. Let's get started!
|
|
|
|
### ~
|
|
|
|
Begin by registering an event with `on pin pressed` *P0* to know when someone is holding pin *P0* and pin *Gnd*.
|
|
|
|
|
|
```blocks
|
|
input.onPinPressed(TouchPin.P0, () => {
|
|
|
|
})
|
|
|
|
```
|
|
|
|
We are going to create a meter that displays a random number from *0* to *10*. We use *10* as `random number up to` returns a number between *0* and *n*.
|
|
|
|
|
|
```blocks
|
|
input.onPinPressed(TouchPin.P0, () => {
|
|
let x = Math.random(10)
|
|
})
|
|
|
|
```
|
|
|
|
Finally, let's show that number on the micro:bit. You are registering an event handler that will execute on the BBC micro:bit whenever the user holds the GND pin with one hand, and presses pin 0 with the other hand, thus completing a circuit
|
|
|
|
|
|
```blocks
|
|
input.onPinPressed(TouchPin.P0, () => {
|
|
let x = Math.random(10)
|
|
basic.showNumber(x)
|
|
})
|
|
|
|
```
|
|
|
|
### ~avatar avatar
|
|
|
|
Excellent, you're ready to continue with the [challenges](/lessons/love-meter/challenges)
|
|
|
|
### ~
|
|
|