61 lines
1.7 KiB
Markdown
61 lines
1.7 KiB
Markdown
# Temperature
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Find the temperature where you are. The temperature is measured in Celsius (metric).
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The micro:bit can find the temperature nearby by checking how hot its computer chips are.
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```sig
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input.temperature();
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```
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### Returns
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* a [Number](/reference/types/number) that means the Celsius temperature.
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### How does it work?
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The BBC micro:bit checks how hot its CPU (main computer chip) is.
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Because the micro:bit does not usually get very hot, the temperature of the CPU
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is usually close to the temperature of wherever you are.
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The micro:bit might warm up a little if you make it work hard, though!
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### Example: micro:bit thermometer
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The following example uses `temperature` and `show number` to show the temperature of the room.
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```blocks
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basic.forever(() => {
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let temp = input.temperature()
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basic.showNumber(temp)
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})
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```
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### Example: Fahrenheit thermometer
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This program measures the temperature using Fahrenheit degrees.
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Fahrenheit is a way of measuring temperature that is commonly used in the United States.
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To make a Celsius temperature into a Fahrenheit one, multiply the Celsius temperature by
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1.8 and add 32.
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```blocks
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basic.forever(() => {
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let c = input.temperature()
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let f = (c * 1.8) + 32
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basic.showNumber(f)
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})
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```
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### ~hint
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Try comparing the temperature your micro:bit shows to a real thermometer in the same place.
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You might be able to figure out how much to subtract from the number the micro:bit
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shows to get the real temperature. Then you can change your program so the micro:bit is a
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better thermometer.
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### ~
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### Lessons
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### See also
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[compass-heading](/reference/input/compass-heading), [acceleration](/reference/input/acceleration)
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