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Visitor II
August 25, 2025
Question

STHS34PF80 Presence and motion sensor

  • August 25, 2025
  • 1 reply
  • 793 views

 Hello,

        In my case, the STHS34PF80 sensor module is powered using I2C communication with the ESP32 module, and I have tested its functionality only up to 2 feet; beyond that, it fails to detect any presence. However, the datasheet indicates that it should cover 4 meters without a lens in an 80-degree field of view. What might be the reasons for this discrepancy?

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    1 reply

    Technical Moderator
    August 29, 2025

    Hi @Ashwin_versa ,

    For the configuration of the sensor and of the presence detection algorithm, we suggest to follow the procedure described in the AN5867.