Light detection, brightness test, through the potentiometer adjustable detection brightness valve point, bring their own relay, can make various brightness detection switch, can control all kinds of street lamp, evening automatic open, the day to go out automatically and the car supplies control and automation equipment. (and photosensitive resistance comparison, directivity is good, can sense the fixed direction illuminant, detection photosensitive diode ahead of light around, it is difficult to test, often should be to seek light function).
1 adopting photosensitive diode sense the strength of the radial, bring their own relay, direct control load;
2 match potentiometer sensitivity adjustment, through the control potentiometer, set start relay valve value, when light in this valve value, module relay suction close, dark in the valve value, relay release, so pick normally open and public end is to control the switch, and then normally closed and public end is to control the switch of the evening;
3 working voltage 5 v;
4 output form: direct joint AC 220 v 10 a or DC30V 10 a load;
5 with four fixed bolt hole, convenient installation;
6 small board PCB size: 5 cm x 2.6 cm;
7 use wide voltage LM393 comparator.
1 The power supply voltage: 5 VDC or 12 VDC (take a message, or default hair 5 v package);
2 Current: more than 100 ma;
3 Load: 250 v and a communication or 30 v 10 a dc.
1 photosensitive diode on the environment light the most sensitive, generally used to detect surrounding environment of the brightness of the light;
2 module in ambient light more than setting threshold value, relay suction close, public end and often start on, when the outside ambient light below the setting threshold, relay disconnect, public end and often closed end on;
3 public end, often open, normally closed three port is equivalent to a double switch, relay coil have electric, public end and often start conducting, no power, public end and often closed end conduction.