Hello, I need to connect a light barrier (NPN or PNP) to an Arduino. I am powering the barrier with 24V. I need to be able to send the information that an object has been detected to my Arduino. How can I do this safely? Some information obtained from the manufacturer: [Barriere2] [Barriere1…

Connecting a light barrier (NPN or PNP) to an Arduino

MaximoEsfuerzo September 23, 2025, 11:32am 2

The safest option is to use an optocoupler.

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