LDR Sensor Module Relay is used to detect the presence of light / measuring the intensity of light. The output of the module goes high in the presence of light and it becomes low in the absence of light. The sensitivity of the signal detection can be adjusted using potentiometer.
LDR Sensor Motion Detector Module Board is for appliance control based on PIR (Passive Infrared Sensor) for Home Automation.
Motion sensor detector module board work on infrared detecting, working range is 0 to 7m. Easy to use. Useful for home, office, shop appliances. The circuit has inbuilt LDR, so the motion sensor works only in Night time or in dark. The Load will not be triggered in day light.
|Dimensions||5 × 3 × 2 cm|
|External Pin outs||
Analog voltage output -A0
|Small board PCB size||
3cm * 1.6cm