My Projects - electronic:pir http://www.projects.scorchingbay.nz/dokuwiki/ 2026-10-01T22:41:20+00:00 My Projects http://www.projects.scorchingbay.nz/dokuwiki/ http://www.projects.scorchingbay.nz/dokuwiki/_media/favicon.ico text/html 2026-09-06T20:08:51+00:00 Anonymous (anonymous@undisclosed.example.com) am110 http://www.projects.scorchingbay.nz/dokuwiki/electronic/pir/am110?rev=1788725331&do=diff [AM110] PIR Description ModelAM110ManufacturerArlecBoard IDsW933B-R, W933C-R, 0620Operating voltage Quiescent Current Output level Retriggerable Delay time Block time Board Dimensions Sensor cone angle Sensor range Operation Temperature Sensor lens size text/html 2026-09-06T21:34:10+00:00 Anonymous (anonymous@undisclosed.example.com) lo403cets http://www.projects.scorchingbay.nz/dokuwiki/electronic/pir/lo403cets?rev=1788730450&do=diff [Lo403-CETS-V1.3] PIR Description ModelLo403-CETS-V1.3Manufacturer Operating voltage1.5VQuiescent Current Output level3.3VRetriggerableyDelay time5sBlock time Board Dimensions Sensor cone angle125ºSensor rangeOperation Temperature-30 - 70ºCSensor lens size15mm text/html 2026-09-05T05:37:02+00:00 Anonymous (anonymous@undisclosed.example.com) sidebar http://www.projects.scorchingbay.nz/dokuwiki/electronic/pir/sidebar?rev=1788586622&do=diff PIR module data * AM110 * MH SR505 * LO403-CETS-V1.3 text/html 2026-09-06T20:09:43+00:00 Anonymous (anonymous@undisclosed.example.com) sr505 http://www.projects.scorchingbay.nz/dokuwiki/electronic/pir/sr505?rev=1788725383&do=diff [MH-SR505] PIR Description ModelMH-SR505 (HC-SR505)Manufacturer Operating voltage4.5 - 20VQuiescent Current60µAOutput level3.3VRetriggerableYDelay time8sBlock time Board Dimensions10 x 23mm Sensor cone angle< 100ºSensor range< 3mOperation Temperature-20 to +80ºC text/html 2018-12-17T18:52:22+00:00 Anonymous (anonymous@undisclosed.example.com) start http://www.projects.scorchingbay.nz/dokuwiki/electronic/pir/start?rev=1545072742&do=diff Overview Passive infra-red sensors are used in many applications to detect the presence of people, eg security lights. I expect that when those devices become faulty it is not the PIR device that has failed but some other component (most likely in the power supply).