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> The Internet of Things (IoT) is a system of interrelated computing devices, mechanical and digital machines, objects, animals or people that are provided with unique identifiers and the ability to transfer data over a network without requiring human-to-human or human-to-computer interaction.
> -- _by [iotagenda](https://internetofthingsagenda.techtarget.com/definition/Internet-of-Things-IoT)_
## Sensor
Converts other form of energy into electrical energy
## Actuator
Converts electrical energy into other form of energy
## Sense-Think-Act Cycle
## Microcontroller vs Microprocessor
* notes:
* https://en.wikipedia.org/wiki/ESP32
[](http://micropython.org)
