LDR Light Sensor Module

Overview

A light-dependent resistor (LDR) breakout module, outputting both an analog light-level reading and a digital threshold trigger.

Key Specs

Pinout

VCC, GND, AO (analog out), DO (digital out)

Features

• Adjustable sensitivity via onboard potentiometer
• Simple, well-documented sensor for beginners

Compatible With

Arduino, ESP32, ESP8266, Raspberry Pi

Use Cases

• Automatic night lights
• Light-level monitoring and dark/bright detection

FAQ

How do I adjust the trigger threshold? Turn the onboard potentiometer while testing under your target light conditions.