Recently, I exhausted my stock of common passive infrared (PIR) motion sensor modules and was looking for a new one to play with. I searched the web for a small type with self-contained electronics.

Stemedu 3PCS HC-SR501 PIR Human Body Motion Sensors, Infrared IR Motion-Activated Switch, Distance Detector Sensor Module for Indoor Stairs Corridor Night Light (Pack of 3pcs) Stemedu 31 ratings ...

Built an infrared motion detector using an NE555 timer IC for AC load control and an IR sensor module for sensing motion. Some key components of the circuit are a BC547 NPN Transistor which functions ...

Last year, I took a look at some mostly low-cost passive infrared (PIR) motion sensor modules. Then recently, I became more aware of cheap microwave radar motion sensor modules. The popular version of ...

Embedding a smart algorithm for presence and motion detection, the STHS34PF80 targets alarms and security systems, home automation, smart lighting, IoT devices, smart lockers, and smart wall pads. Its ...

The 8-channel line tracking sensor module is specially designed for the line patrol function of robot car. It integrates 8PCS high-sensitivity infrared sensors, which can quickly and accurately detect ...

P4562D -- Jul 24 2023 -- TMOS sensor_IMAGE HI RES ST TMOS sensor STMicroelectronics reveals innovative infrared (IR) sensor for presence and motion detection in building automation Highly ...

As you can see the quality is severely lacking. I have a Nikon D7100, but I don't know of any way to trigger video capture based on an external IR motion sensor.