Photoresistive light dependent resistor module. KY-018.

Name: Photoresistive light dependent resistor module. KY-018.
Brand: Official Hobby Components Online Store | Buy Electronic Kits, Components, Boards, Shields, Modules
SKU: SKU-aa667923867a
Price: 0.28 USD
Availability: InStock
Rating: 4.8 (5 reviews)

Photoresistive light dependent resistor module. KY-018. - Main image

$0.28 ~~$0.41~~ In stock

Category: Sensors

Photoresistive light dependent resistor module. Keyes brand KY-018. This module allows for easy sensing of light levels from within your micro controller application. Just connect GND and VCC to the module and a varying voltage depending on ...

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Customer Reviews (4.8 / 5 · 5 reviews)

Hannah ★★★★★ Oct 21, 2026

Plugged this into my breadboard and it immediately responded to my hand shadow. The analog readings are smooth, perfect for a simple night-light project I'm building.

Lily ★★★★★ Oct 20, 2026

Got my Arduino project detecting dawn and dusk in no time just by hooking up GND and VCC, and the analog signal is surprisingly steady even in dim room light.

Penelope ★★★★★ Oct 19, 2026

Took me about two minutes to wire the GND and VCC pins to my Arduino, and the analog output shifts smoothly as I move my hand over the sensor. It's dead simple to read light levels from the microcontroller without any extra components. Exactly what I needed for a basic ambient light project.