PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small
Project tutorial by DIY Partners
Log humidity, automatic irrigate, switch plant growing lamp on and voice control everything with Amazon Alexa and Arduino.
Project tutorial by Walter Heger
Anemometer or a wind speed measuring device is a common weather station instrument. It was costly online, so I built one!
Project tutorial by Achindra Bhatnagar
Ok, find! Niw I understand it.
What is the ”Robber”?
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