sen0192.h File Reference

DFRobot SEN0192 10.525 GHz microwave Doppler motion sensor (DETWS_ENABLE_SEN0192). More...

#include "ServerConfig.h"

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Detailed Description

DFRobot SEN0192 10.525 GHz microwave Doppler motion sensor (DETWS_ENABLE_SEN0192).

The SEN0192 is a 3-pin part (V / G / digital OUT) whose OUT line asserts while it senses motion (Doppler shift) within its adjustable range. Unlike the framed serial of an LD2410, it carries no protocol - it is a single digital line - so the "driver" is a debounced presence tracker over that line: assert presence on an active sample and hold it for a configurable window after the last active sample, so brief gaps between Doppler returns don't make presence flap.

The presence state machine (::Sen0192Motion) is pure and host-tested - it takes a sampled line level and a timestamp and needs no clock or GPIO. The ESP32 binding reads DETWS_SEN0192_PIN each poll (via detws_millis()) and feeds it in; only that read touches hardware. The OUT polarity and hold window come from ServerConfig (DETWS_SEN0192_ACTIVE_HIGH / DETWS_SEN0192_HOLD_MS / DETWS_SEN0192_PIN).

Author

Douglas Quigg (dstroy0)

Date

2026

Definition in file sen0192.h.