Step 1: Make it
What is it?
Use a simple function to convert centigrade readings from the micro:bit's temperature sensor to Fahrenheit.
How it works
- The micro:bit's processor has a built-in temperature sensor input which gives readings in centigrade.
- Using functions allows you easily to convert the temperature to Fahrenheit.
- The convertCtoF function means you can re-use the conversion code easily, for example in a maximum-minimum thermometer.
- The function is called by using convertCtoF in place of a variable or number when you press button B on your micro:bit.
- We pass to the function the temperature in centigrade.
- The function then takes the number passed to it, stored in a variable called C, and converts it to Fahrenheit by multiplying it by 1.8 and adding 32.
- The function then returns the converted number so when you press button B the temperature is shown in Fahrenheit on the LED display output.
- If you press button A, the temperature is shown in centigrade.
What you need
- micro:bit (or MakeCode simulator)
- MakeCode or Python editor
- battery pack (optional)