What is IoT and how it works

Internet of Things becomes more and more a part of our live, but how does it actually work?
For more details check our our other videos like "MQTT basics".

ESP8266:
https://amzn.to/3WxiVmB

ESP32:
https://amzn.to/3W71DNp

Arduino:
https://amzn.to/3uXHUnk

BME280 (combined temp and humidity measurement, accurate and durable):
https://amzn.to/3Ww4EGu