HC-SR501 HC-SR501 Human Sensor Module Pyroelectric Infrared HC-SR501 Infrared PIR Motion Sensor Module Raspberry PI For Arduino Important Information: Solder Pads for Repeatable(H) mode & Non- Repeatable(L) mode Centre Pad solder to H for Repeatable(H) mode (Normal Operation) Centre Pad to L for Non- Repeatable(L) mode These pins can be found in the top right hand corner of the module. Product https://elecena.pl/product/16455079/hc-sr501-human-sensor-module-pir-infrared 2020-04-14 https://elecena.pl/product/16455079/hc-sr501-human-sensor-module-pir-infrared 2020-09-01 https://elecena.pl/product/16455079/hc-sr501-human-sensor-module-pir-infrared 2021-03-02 https://elecena.pl/product/16455079/hc-sr501-human-sensor-module-pir-infrared 2025-07-09