Uses:
The light intensity detection, the light intensity sensor, has the direction, only the sensor is in front of the light source, for the search light effect is better
Module feature:
1 can detect the surrounding environment of the brightness and light intensity (compared with the photosensitive resistance, the direction of good, can perceive the fixed direction of the light source)
2 sensitivity can be adjusted (figure in blue digital potentiometer adjustment)
3 working voltage 3.3V-5V working current: 8.2MA quiescent current: 4.7MA
4 output form: DO digital switch output (0 and 1) and AO analog voltage output
5 with fixed bolt holes, easy to install
6 small size: 3.2cm * 1.4cm PCB
Module description:
1 photosensitive diode module is the most sensitive to environmental light intensity, generally used to detect the brightness and intensity of the surrounding environment, in most occasions can be used with the photosensitive resistance sensor module universal, the difference between the two is that the photosensitive diode module is better, can sense the fixed direction of light source.
2 module in the absence of light conditions or the intensity of the setting threshold, DO port output high, when the outside environment is more than the setting threshold, the module D0 output low level;
Three boss digital output d0 can be directly connected with the SCM, through the microcontroller is used to detect the level, thus to detect environmental light intensity change.
4 small digital output DO can directly drive the relay module, which can be composed of a photoelectric switch;
5 small analog output AO can be connected to our AD module, through the AD conversion, can obtain more accurate numerical environmental light
Product wiring instructions:
1, VCC power supply 3.3-5V
2, GND power supply negative
3, TTL DO switch signal output
4, AO analog output