We are using Arduino technology to collect the IKEA Vindriktning air quality sensor data and send it to ThingSpeak.

"Arduino is an open-source electronics platform based on easy-to-use hardware and software. It's intended for anyone making interactive projects."

If you are interested in the details of how to interface Arduino and ThingSpeak, refer to:
Getting started with ThingSpeak [https://thingspeak.com] and Arduino.

Our project includes an ESP8266 microcontroller which includes a WiFi interface to connect to the Internet.
Arduino sketches (programs) are supported on the ESP8266 using the ESP8266 Arduino Core software, which we need to add to the Arduino IDE (Integrated Development Environment).

"The open-source Arduino Software (IDE) makes it easy to write code and upload it to the board. This software can be used with any Arduino board. "