All Products

SKU: LB-LS0633

A pack of 50 through-hole photoresistors (light-dependent resistors / LDRs) with a 5 mm diameter sensing element. These components change their resistance based on the amount of light hitting the sensor — resistance decreases as light intensity increases — making them a simple and inexpensive way...

SKU: AF-161 · MPN: 161

CdS cells are little light sensors. As the squiggly face is exposed to more light, the resistance goes down. When its light, the resistance is about 5-10KΩ, when dark it goes up to 200KΩ. To use, connect one side of the photo cell (either one, its symmetric) to power (for example 5V) and the o...

SKU: M5-U070

The M5StickC Yun HAT is a cloud-shaped multi-sensor environmental monitoring accessory designed to mount on the M5StickC via the top socket. It integrates a temperature and humidity sensor (SHT20), barometric pressure sensor (BMP280), a photoresistor for ambient light detection, and 14 SK6812 RGB...

SKU: AF-249 · MPN: 249

This pack includes everything you need to build a light and temperature data logger with an Arduino. The Adafruit data logger shield records sensor readings to an SD card with real-time timestamps, while the included photocell and TMP36 temperature sensor provide light level and temperature measu...

SKU: KS-KS0803

The DIY Light Controlled Phonograph Kit is a hands-on STEM project that combines woodworking assembly with basic electronics and programming. Built on a basswood structural base, this phonograph uses a photoresistor to detect light levels and an 8002B power amplifier to drive audio playback, lett...

SKU: DF-FIT0180

This type of photoresistor is made of environment-friendly materials(no Cadmium and Lead) compared with the traditional CDS photoresistor. It changes resistance depending on the amount of light it is exposed to. These little sensors can be used in light-interacting projects. SPECIFICATIONS Head ...

SKU: AF-5913 · MPN: ADA5913

The Adafruit STEMMA Reflective Photo Interrupt Sensor uses a TCRT1000 right-angle optical module to detect reflective surfaces. An onboard IR LED emits light, and when an object reflects it back to the IR phototransistor, the output pin drops from high toward 0V — making it easy to detect the pre...

SKU: EF-EF04032

The Octopus Analog Photocell Brick is a light-dependent resistor (LDR) module from the ElecFreaks Octopus Electronic Bricks series. It uses a cadmium-sulfide (CdS) photocell that changes resistance based on ambient light levels — the brighter the light, the lower the resistance. With its 3-pin co...

SKU: SF-SEN-09299

The GP1A57HRJ00F is a slotted optical sensor (photo interrupter) with an infrared emitter on one upright and a shielded infrared detector on the other. When an object passes through the 10 mm gap between the uprights, it breaks the IR beam and the detector registers the interruption. Key Feature...

SKU: SF-BOB-09322

A simple breakout PCB for the GP1A57HR photo interrupter (also known as a photogate, photodiode, or phototransistor). This PCB has three connections for PWR, GND, and Signal.When the gate is clear, SIG will be high (>4.9V). When the gate is blocked by a finger, writing utensil, food pellet, or an...

SKU: SF-SEN-09088

This is a very small light sensor. A photocell changes (also called a photodetector, photo resistor, CdS or photoconductive cell) resistance depending on the amount of light it is exposed to. These little sensors make great ambient light triggers (when light in the room turns on, do something).Fe...

SKU: DF-DFR1129 · MPN: DFR1129

##Introduction The Gravity: Photo Interrupter Module integrates a high-performance ITR9608 photoelectric switch. Its compact design and easy operation make it an ideal choice for electronic projects and applications. Whether for robotics, automation equipment, or counting systems, this module pro...

SKU: SF-COM-30222 · MPN: COM-30222

This compact resistor network packages eight individual 10k Ohm isolated resistors into one 16-pin 2506 surface-mount component. It is a handy way to save board space when a design needs several identical resistors close together.Each resistor element is rated for 63mW with a ±5% tolerance, makin...

SKU: AF-613 · MPN: 613

Built for projects that need an outdoor-ready camera, this module combines a metal weatherproof enclosure, mounting hinge and a 1 meter long cable with the TTL serial and NTSC video signals brought out.It outputs NTSC video and can also capture snapshots from that video stream, sending pre-compre...

SKU: LB-LR0282

This Light Dependant Resistor (LDR) can be used to easily measure ambient light with your Arduino or other board with analog input. You will need to set this up as a voltage divider with a resistor of around 10KΩ.   Specification:Maximum voltage: 150V, DCMaximum wattage: 90mWOperating tem...

SKU: LB-BK-LR0282

Description This Light Dependant Resistor (LDR) can be used to easily measure ambient light with your Arduino or other board with analog input. You will need to set this up as a voltage divider with a resistor of around 10KΩ.   Specification:Maximum voltage: 150V, DCMaximum wattage: 90mWO...

SKU: AF-2831 · MPN: 2831

This Photo Transistor Light Sensor is a simple sensor that detects ambient light. It's kind of the opposite of an LED - when light hits the little chip inside, it induces current to flow from the long pin to the short pin. This sensor has a built-in optical filter (probably IR filter...

SKU: EC-ELE18716S

A comprehensive 300+ piece electronics component kit for getting started with Arduino, Raspberry Pi, and general electronics prototyping. Everything is packed into a single box for organised, efficient access — covering the core components you'll reach for again and again across beginner and inte...

SKU: KS-KS0567

Tutorials: Online Tutorial: KS0567Download Code and Library: KS0567 Description: Based on ESP32 Internet of Things, this Smart Farm Kit integrates multiple sensors, enabling automatic and wireless manipulation as well as intelligent management. This tutorial comprehensively applies all sensor...

SKU: AF-1246 · MPN: 1246

Add light-reactive sensing to your wearable Flora project with this high precision Lux sensor. The TSL2561 luminosity sensor is an advanced digital light sensor, ideal for use in a wide range of light situations. Compared to low cost CdS cells, this sensor is more precise, allowing for exact lux ...