Photoresistor LDR Light Sensor Module (LDR) แบบ 4-Pin

Photoelectric module Sensor โมดูลใช้ในการตรวจจับความสว่างและความเข้มของแสง ใช้งานได้ทั้ง Analog output และ Digital Output โดย Digital output จะให้ค่าเป็น High เมื่อมีแสงสว่างตกที่ตัวเซนเซอร์เกินค่าที่ตั้งไว้ Features: - Can detect ambient brightness and light intensity - Adjustable sensitivity (via blue digital potentiometer adjustment) - Operating voltage 3.3V-5V - 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 How to use: - Photosensitive resistor module most sensitive to environmental light intensity is generally used to detect the ambient brightness and light intensity. - Module light conditions or light intensity reach the set threshold, DO port output high, when the external ambient light intensity exceeds a set threshold, the module D0 output low; - Digital output D0 directly connected to the MCU, and detect high or low TTL, thereby detecting ambient light intensity changes; - Digital output module DO can directly drive the relay module, which can be composed of a photoelectric switch; - Analog output module AO and AD modules can be connected through the AD converter, you can get a more accurate light intensity value