Quantity: 1 - Color: Blue - Material: PCB - Can detect ambient brightness and intensity (compare with the photo resistor better direction can perceive the light source of the fixed direction) - Adjustable sensitivity (blue digital potentiometer adjustment) - Operating voltage: 3.3V~5V - Digital switch output (0 and 1) - With fixed bolt hole for easy installation - 6 small plates PCB size: 3.2cm x 1.4cm - Module interface description - VCC external 3.3V-5V voltage (can be directly connected to the 5V microcontroller and 3.3V microcontroller) - GND external GND - DO small board digital output interface (0 and 1) - Packing list: - 1 x Module