DIYables Light Sensor for Arduino, ESP32, ESP8266, Raspberry Pi

Quick Overview

This 50-piece photocell light sensor (LDR - Light Dependent Resistor) pack provides analog light detection for Arduino, ESP32, ESP8266, and Raspberry Pi projects. The resistance changes based on ambient light levels, from 5-10KΩ in bright light to 200KΩ in darkness.

Perfect for automatic lighting control, day/night detection, solar trackers, and light-responsive projects. Fast response time of 20ms (rise) and 30ms (fall) ensures quick light level detection.

Key Features

50-Piece Pack — Bulk quantity for multiple projects
Photoresistor Technology — Resistance varies with light intensity
Fast Response — 20ms rise, 30ms fall time
Wide Range — 5-10KΩ (bright) to 200KΩ (dark)
Spectral Peak — 540nm (green light sensitivity)
Compact Size — 5.0mm × 2.0mm
Maximum Ratings — 100mW power, 150V DC
Wide Compatibility — Arduino, ESP32, ESP8266, Raspberry Pi
Versatile Use — Automatic lighting, solar tracking, light detection
...NOTE
If you are using the ESP32, you need to configure the ADC with 11 dB attenuation to set the voltage reference range to handle up to 3.3V.
...NOTE

SPECIFICATION

Specification	Value
Product Type	Photocell Light Sensor (LDR)
Quantity	50 pieces
Response Time (Rise)	20ms
Response Time (Down)	30ms
Spectral Peak	540nm
Maximum Wattage	100mW
Maximum Voltage	150 Volt DC
Size	5.0mm × 2.0mm
Weight	1g per piece
Resistance (Bright)	5-10KΩ
Resistance (Dark)	200KΩ (0.2MΩ)