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# truth or dare lesson
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create a love meter with the BBC micro:bit.
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### @video td/videos/truth-or-dare-0
## Topic
If (Conditionals)
## Quick Links
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* [activity ](/lessons/truth-or-dare/activity )
* [challenges ](/lessons/truth-or-dare/challenges )
* [quiz ](/lessons/truth-or-dare/quiz )
* [quiz answers ](/lessons/truth-or-dare/quiz-answers )
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## Prior learning/place of lesson in scheme of work
Learn how to use an if statement to run code run code depending on whether a condition is true or not. We will be learning how to create the game truth or dare using input an if statement, a local variable, math random as well as simple commands, such as show string and show LEDs.
## Documentation
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```cards
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basic.showLeds(`
. . . . .
. . . . .
. . # . .
. . . . .
. . . . .
`)
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input.onButtonPressed(Button.A, () => {})
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let x = 0
Math.random(3)
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if (true) {}
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basic.showString("Hello!")
```
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## Objectives
* learn how to display an image on the BBC micro:bit
* learn how to run code when an input button is pressed
* learn how to a create a variable for a place where you can store and retrieve data
* learn how to declare a new local variable or update the value of a variable
* learn how to return a random number
* learn how to conditionally run code depending on whether a condition is true or not
* learn how to show a string on the LED screen one character at a time (scrolling from left to right)
