IoT (Internet of Things) is the network of physical devices,

Question

IoT (Internet of Things) is the network of physical devices,

vehicles, home appliances, and other items embedded with electronics, software, sensors, actuators, and connectivity which enables these things to connect and exchange data, creating opportunities for more direct integration of the physical world into ... https://en.m.wikipedia.org/wiki/Internet_of_things

There are 1000s of starter projects for simple IoT thermometers on the Internet, we would recommend one of these to anyone looking to do a first project… an ESP8266 and a DH11 with 2x AA batteries should come to less than £/$/€ 10 and be a good introduction to IoT using the Arduino IDE. Like this one for example: https://randomnerdtutorials.com/esp8266-dht11dht22-temperature-and-humidity-web-server-with-arduino-ide/

We are more than happy to answer well defined questions writen in clear normitive form English[1], which show you have carried out some research on the subject you are asking about.

Please remember that we get frustrated at the same question being asked daily by people who don’t read the scroll back (Eternal September)[2].

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[1] https://en.wikipedia.org/wiki/Standard_English
[2] Eternal September was a month when a really good academic community was overloaded with new people due to a service provider.

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tl;dr: "hey you, did you google your question first? no? https://google.com"