In practice, the below example you may apply for: * Turn the street light on at 6pm and off after 6am everyday * Turn on the water pump every day at 06:00 for 2 second * If the forecast weather is rain, open the umbrella * Use voice command to control robot actions * When the door is closed, LED is turned on. ## Scenario Example
The micro:bit is connected to the Internet. Once the time is changed to 6 pm, the IFTTT cloud will send the command to the micro:bit to turn on the LED.
Description:
In this example, there are 2 parts involved. * In part 1, we need to connect the micro:bit to the internet and get the device ID. * In part 2, set the rule on IFTTT applet. If the time is 6 pm, set the command “light_on” 
## Part 1: Coding
We need to get the Device ID and set the corresponding action.
Connection Diagram:
* Connect LED to P0
*Pull the buzzer switch 'up' to disconnect the buzzer in this execrise*
Step 1: Connect WiFi
Before we try to use WiFi Control function, we need to connect to the network, we have already know how to connect to the WiFi on the first chapter.
Step 2: Get Device ID
`On WiFi connected` is an event handler. It will be triggered once after connected with WiFi. The handler will provide the `Device ID` variable which used to identify and control the Microbit. * Go to OLED Tab * Snap `initialize OLED with width…height..` to `on start` * Snap the `show string` inside the `On WiFi connected` * Draw the `Device ID` variable from `On WiFi connected` to the `show string` block placeholder 
*If you worried about forget the `Device ID` during program running, you may access it by the variable under Control tab * Go to Control tab * Snap the `Device ID` variable to the placeholder 
Step 3: Control with Command
After connected to the WiFI, the connection to the server will be done automatically, it is ready to receive command though network. To get the command, we can use the `on Wi-Fi received` handler in WAN control tab. * Snap the `on WiFi received` handler to stage * Do the `if-condition statement` to the variable `WAN_Command` * If `Wan_command` “light_on” is received, white LED will be turned on (intensity:1023) * If `Wan_command` “light_off” is received, white LED will be turned off (intensity:0) 
Step 4: Show the Command
Sometimes you may need to show the recevied command for debugging, so if you need that, you can use the OLED `show string` to display the command on the OLED. * Go to OLED * Snap the `clear OLED display` to `On WiFi received` to avoid overlap * Snap the `show string` to `On WiFi received` * Draw the `WAN_Command` variable to `show string` placeholder 
Full Solution
MakeCode: [https://makecode.microbit.org/S67803-65779-86952-86954](https://makecode.microbit.org/S67803-65779-86952-86954)
You could also download the program from the following website:
## Part 2: IFTTT Applet Configuration
Open your browser , go to [https://ifttt.com/](https://ifttt.com/). Register your IFTTT account and once completed, log in to your IFTTT account.
Step 2: Create Applets
On the top right menu, click “Create” > “Applets”
Step 3: Set the Rules
On IFTTT configuration, set the below. We can set the rule on the IFTTT, if something happened like time at 6:00 p.m., we can do the corresponding action.
A. Trigger Part
1.Search "Date" and select "Date & Time"
2.Finish the time setting.
* Choose trigger "Every day at"
* Select the time (e.g. 06PM, 00Minutes; it menas every day at 6pm) and click "Create trigger"
B. Action Part
1.Search “micro:bit” and you will see “Smarthon IoT(micro:bit)”
2.Finish the Micro:bit setting.
* Choose action "Control Command"
* Input your `Device ID` (e.g. 0xa3240ac45916) and `control command` (e.g. light_on). Then click "Create action"
Optional
If you need to send the command with value to the micro:bit
## Result
Goal:
We need to setup the IFTTT Applet to control the Micro:bit
Step 1: Create or login to IFTTT account
Normal Case:
After connected to WiFi, micro:bit will connect to control server and keep listening to the WAN command
* Every day at 6pm, clock will trigger IFTTT to send out micro:bit WAN command “light_On”
* Micro:bit will recevie the command
* The LED on P0 will be turned on.
Advanced Usage(with value):
When change the applet to contain value version, it will have an additional variable `value` included
* Every day at 6pm, clock will trigger IFTTT to send out micro:bit WAN command “LightValue” (with value “600”)
* Micro:bit will recevie the command
* The LED on P0 will be turned on (with light intensity: 600).
