LDR Sensor Module Features: Can detect ambient brightness and light intensity Adjustable sensitivity (via blue digital potentiometer adjustment) Operating voltage 3.3V-5V Easy to use with Arduino Output Type: Analog voltage output -A0 Digital switching outputs (0 and 1) -D0 With fixed bolt hole for easy installation Small board PCB size: 3cm * 1.6cm Power indicator (red) and the digital switch output indicator (green) Using LM393 comparator chip, stable Pin outs: External 3.3V-5V VCC External GND GND DO digital output interface, a small plate (0 and 1) AO small board analog output interface
