Arduino’s are great devices because they let us sense our environment around us. There are a great number of sensors available that can work with the arduino. Digital sensors allow us to sense whether something is on, or off, like a door switch. Analog sensors allow us to sense how much of something exists, like how much light, or pressure. Some sensors give us actual data streams, like a gps sensor, instead of simple on/off, or a varying voltage.
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What are your favorite types of sensors?
What do you like to sense?
Give us feedback if we missed yours, or post links to the project you have personally made!