Light detection, brightness detection, by detecting the brightness potentiometer adjustable valve points relay comes, do all kinds of brightness detection switch, you can control all kinds of lights, turn on automatically at night, during the day and automatically turn off car supplies control and automation equipment. Compared with photosensitive resistance, directionality, can sense the direction of the fixed light source, a photodiode detector in front of the light, the surrounding is difficult to detect, and often should look for light function
1, using the strength of the photodiode light sensing, comes relay, direct load control
2, distribution position sensitivity adjustment by adjusting potentiometer to set the threshold to start the relay, when this threshold lights, relay module, when this threshold is dark, the relay is released, so the normally open contact with the public end of the day is the control switch connected to the common terminal is normally closed control switch at night.
3, the working voltage of 5V
4, the output form: direct access AC 220V 10A or DC30V 10A load
5 with 4 fixing bolt holes for easy installation
6, small PCB board size: 5cm x 2.6cm
7, using a wide voltage comparator LM393
Supply voltage: 5VDC
Current: More than 100mA
Load: 250V 10A AC or DC 30V 10A
1, the photodiode to the most sensitive to ambient light, generally used to detect the brightness of ambient light.
2, when the ambient light module exceeds the set threshold, the relay, common and normally open ON ,, when ambient light is below the set threshold, the relay is switched off, the common terminal and the normally closed terminal is turned on;
3, common, normally open, normally closed three ports is equivalent to a dual-control switch, relay coil when there is electricity, common and normally open conduction, without electricity, the common terminal and the normally closed end conduction
When the ambient light is detected higher than the set temperature, the relay, the light bulb, below the set value, the relay is switched off, the light does not shine?Illustrated only say that the wiring method?For high voltage connection.
When the ambient light is detected higher than the set temperature, the relay, the light bulb, below the set value, the relay is switched off, the light does not shine?Illustrated only say that the wiring method?For sharing power connections.
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