## Goal
## Background
ThingSpeak is an IoT analytics platform service which provides instant visualizations of data posted by your devices to ThingSpeak. In this case, we will use this platform to update our data to plot instant graphs.
Weather station operation
Collecting temperature, humidity and raindrop consistently and uploading the data by using Thingspeak. This can help us to do analytical work more conveniently as we can refer to the automatically plotted graphs.
## Part List
## Assembly step
Attach the raindrop sensor to F2 model.
Step 2
Attach the temperature and humidity sensor to F2 model. 
Step 3
Put together all the cardboard parts (F1-F2). 
Step 4
Assembly completed! 
## Hardware connect
Connect the Temperature and humidity Sensor to P2 port of IoT:bit
*Pull the buzzer switch 'up' to disconnect the buzzer in this execrise* ## IoT (ThingSpeak)
Step 1
Go to [https://thingspeak.com](https://thingspeak.com/), Choose Channels -> My Channels -> New Channel
Step 2
Input Channel name, Field1 and Field2 , then click “Save Channel”
* Channel name: Smart Weather Station
* Field 1: temperature
* Field 2: humidity
* Freld 3: raindrop
Step 3
Select your channel > “API Keys” ，copy the API key as follows:
## Programming (MakeCode)
* Snap `Initialize OLED with width:128, height: 64` to `on start` * Snap `Initialize IoT:bit TX P16 RX P8` from `IoT:bit` to `on start` * Snap `Set Wi-Fi to ssid pwd` from `IoT:bit` * Enter your Wi-Fi name and password. Here we set `smarthon` as `SSID` and `12345678` as `password` * Set variable `raindrop`, `humidity` and `temperature` to 0 from `variables`* 
Step 2. Show icon "tick" after WiFi connection
* Snap `show icon` from `basic` to `On WiFi connected` and select icon `tick` 
Step 3. Get temperature, humidity and raindrop values
* Snap `if statement` to block `forever` * If `WiFi is connected` * Then, set `humidity` to `read humidity from DHT11 at Pin P2` * Set `temperature` to `read temperature from DHT11` * Set `raindrop` to `get raindrop value (percentage) at Pin P0` 
Step 4. Show values on OLED
* Snap `clear OLED display` from `OLED` to avoid overlap * Snap `show string` and show value of variables `Temperature`, `Humidity` and `Raindrop` 
Step 5. Upload data to ThingSpeak
* Snap `Send Thingspeak key...` inside the `if-statement` * Fill in the `api key` from Thingspeak with temperature, humidity and raindrop value * Snap `pause` to the loop to wait 15 second 
Step 6. Show ThingSpeak upload status
* Snap `show string` inside `On Thingspeak Uploaded` * Draw the variable `Status` and `Error_code` to block `show string` 
Full Solution
MakeCode: https://makecode.microbit.org/S69673-71462-95163-33727
## Result
We can find three graphs on Thingspeak including temperature, humidity and raindrop (field1, field2, field3) respectively by collecting data using different sensors.
## Think
When micro:bit is connected to WiFi, it will check weather information (temperature, humidity from Temperature and humidity Sensor and raindrop value from raindrop sensor). Then, those data will be sent to ThingSpeak and pause for 15 seconds for another update.
Q1. How can we upload other module values (e.g. noise) to ThingSpeak?