The Internet of Things (IoT) is everyday things that connect to the internet to send or receive data — a smart plug, an app-controlled bulb, a Wi-Fi weather station or a smart energy meter. A sensor measures, the microcontroller reads the value and sends it over Wi-Fi, a cloud server stores it and a phone app shows it. Commands can go the other way to an actuator, like switching a light from your phone. If a sensor sends one reading every 10 seconds, it sends 6 a minute and 12 in 2 minutes.
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🏁 Lesson 27 test
20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.
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