Temperature Activity

Learn how to use the device's sensors as input in this activity.

• 대상 연령 8+
• 30 예상 시간(분)
• MakeCode Editor

소개

This project uses one of the on-board sensors and a gesture control to display the real world temperature.

활동

4 단계

1단계

In the MakeCode editor select the Input option from the block menu and find the “On shake” block and drag onto the workspace.

"흔들림 감지하면 실행" 블럭의 "흔들림" 을 "왼쪽으로 기울임" 또는 "오른쪽으로 기울임"으로 변경할 수도 있습니다. 이 프로젝트에서는 "흔들림" 동작을 사용합니다.

``````
input.onGesture(Gesture.Shake, function () {

})
``````

2단계

Now the micro:bit is programmed so it will respond to a shake gesture the next part is to create a variable that the temperature will be stored in. From the block menu select the “Variable” and click “Make a Variable”.

A popup dialogue box will then ask you to name your variable. In this example name it “Temp”.

The block “Temp” now appears in the Variable option menu. When the micro:bit is shaken we would like the temperature to be stored in the variable “Temp”. To achieve this, we select the “Set item to” block and drag into the workspace.

Click the arrow next to 'item' and select 'Temp'.

Now when the micro:bit is shaken the variable “Temp” will be set to 0.

``````
let temp = 0
input.onGesture(Gesture.Shake, function () {
temp = 0
})
``````

Step Three

So that the variable “Temp” is set to the actual temperature we need to use the temperature input from the “Input” option from the block menu.

Drag this onto the workspace and set it to replace the “0” so that when the micro:bit is shaken the “Temp” variable is set to the Temperature input from the micro:bit sensor.

``````
let temp = 0
input.onGesture(Gesture.Shake, function () {
temp = input.temperature()
})
``````

Step Four

Now that the variable “Temp” has been set to the actual temperature using the micro:bit sensor, it now must be displayed so the user can see the value. Select the “Show number” block from the basic menu and drag it onto the workspace.

Place the “show number” block under the set Temp block in the shake input block.

``````
let temp = 0
input.onGesture(Gesture.Shake, function () {
temp = input.temperature()
basic.showNumber(0)
})
``````

So that the temperature is shown on the LEDs the “Temp” variable is needed again. This is found from the Variable option from the block menu.

Place the “Temp” variable in the show number block so the value of the temperature is displayed on the LEDs.

``````
let temp = 0
input.onGesture(Gesture.Shake, function () {
temp = input.temperature()
basic.showNumber(temp)
})
``````