52 lines
1.2 KiB
Markdown
52 lines
1.2 KiB
Markdown
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# love meter blocks activity
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Create a love meter with the micro:bit
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### ~avatar avatar
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### @video td/videos/love-meter-0
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Welcome! This activity will help you create a love meter with the micro:bit. Let's get started!
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To create a new script, go to the [Create Code](/microbit/create-code) page and tap *New Project* under *Block Editor*.
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### ~
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Begin by registering an event with `on pin pressed` *P0* to know when someone is holding pin *P0* and pin *Gnd*.
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```blocks
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input.onPinPressed(TouchPin.P0, () => {
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})
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```
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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*.
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```blocks
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input.onPinPressed(TouchPin.P0, () => {
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let x = Math.random(10)
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})
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```
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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
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```blocks
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input.onPinPressed(TouchPin.P0, () => {
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let x = Math.random(10)
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basic.showNumber(x)
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})
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```
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### ~avatar avatar
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Excellent, you're ready to continue with the [challenges](/microbit/lessons/love-meter/challenges)
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### ~
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