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## Self Testing, Low Power and Connecting Things

## POST (Power-On Self-Test)

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## Self-Test

* **hardware control** - sensors, actuators, batteries, communication modules, ... * **software tests** - integrity test of components after OTA * **security checks** - data integrity checks with checksums



## Diagnostics > Diagnostics is **the process** of **analyzing data** from a device in order to **determine whether there are any errors or deviations** in the system.

## Benefits for IoT 1. Increased Reliability 2. Maintenance and prevention 3. Zníženie prestojov

 notes: * https://www.avsystem.com/blog/what-is-iot-architecture/

## M2M (Machine-to-Machinie)

> M2M is a broad label that can be used to describe any technology that enables networked devices to exchange information and perform actions without the manual assistance of humans. > -- ([IoT Agenda](https://internetofthingsagenda.techtarget.com/definition/machine-to-machine-M2M))

## M2M ≠ IoT

 notes: * https://www.avsystem.com/blog/iot-and-m2m-what-is-the-difference/

 Notes: * https://www.saftbatteries.com/energizing-iot/impact-communication-technology-protocol-your-iot-application%E2%80%99s-power-consumption



 Notes: * http://selvarajkesavan.blogspot.com/2019/01/iot-device-communication-protocols-it.html

 Notes: * https://www.daviteq.com/blog/en/what-are-the-most-popular-iot-protocols/

## Questions?