LDR Light Sensor

LDR Light Sensor Module

     On it there is a 5 mm LDR whose resistance changes according to light intensity. It is used for sensing the brightness and intensity of the ambient light. The brightness adjustment is made with the potentiometer on it. It gives digital output. This board, which gives digital and analog output according to the ambient light, gives 0V in the dark condition, and a 5V signal in the condition where light falls on the sensor. Sensitivity adjustment can be made with the pot on it. The operating voltage is 3.3-5V.

     Ldr is sensitive to light. It is generally used for sensing that light is present. It creates a digital output that is triggered according to the set light intensity. When the light intensity does not reach the level you set, the output stays at the 5v level. When it passes the level you set, the output drops to the low voltage level, to 0V. With this digital output you can trigger an mcu or a relay. Thanks to this you can create automatic systems that can operate according to the conditions of light being present or absent.

Features:

•  An ldr whose resistance changes with light intensity is used.
•  Operating voltage: DC 3.3 V - 5 V
•  Lm393 Comparator chip
•  The light level to be sensed is set with the potentiometer.
•  Output: Digital Output ( 0 and 1 )
•  Mounting hole
•  Dimensions: 3.2cm x 1.4cm

Pin Description:

•  VCC: DC 3.3 V - 5 V
•  GND: External ground GND
•  DO: Digital Output

Package Contents :

• 1 pcs LDR Light Sensor Module