This water-proof sensor can detect if there's an object within its range using infrared light. The range is configurable up to 2 meters and the sensor is waterproof.

Ideal use cases: checking if your car is in the garage, cheaking if there are letters in your mailbox, ...

Buy this sensor from DFRobot:
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(They kindly provided me with this sensor)

⚡️Other videos in this series:
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(Everything you need to know about programming the ESP32 by using the Arduino Framework)

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