Sensors & Input

SKU: AF-161 | Brand: Adafruit

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 o...

SKU: SF-ROB-09453 | Brand: SparkFun

This version of the QRE1113 breakout board features an easy-to-use analog output, which will vary depending on the amount of IR light reflected back to the sensor. This tiny board is perfect for line sensing applic...

SKU: DF-DFR0076 | Brand: DFRobot

This Gravity analog flame sensor detects fire and infrared light sources in the 760–1,100 nm wavelength range. With a 60° detection angle and analogue output proportional to flame distance, it's widely used in firefig...

SKU: AF-5990 | Brand: Adafruit

The Adafruit Infrared IR Remote Transceiver combines a high-powered IR transmitter and a sensitive 38 kHz IR receiver on a single board. With two 940 nm IR LEDs (one vertical, one horizontal) driven by an onboard N-ch...

SKU: WS-25515 | Brand: Waveshare

Round 2D Codes Scanner Module, Barcode/QR code Reader, With LED Indicator, Small Size, Easy to Integrate 2D Codes Scanner Module  1D/2D Codes Recognition | Small Size | Screen scanning   The Barcode ...

SKU: EF-EF03424 | Brand: ElecFreaks

Ring:bit car V2 line following module is a dedicated module designed for the Ring:bit car V2, it is easy to be installed to achieve the line following function for the Ring:bit car V2.Equipped with double infrared ...

SKU: DF-SEN0448 | Brand: DFRobot

A 4-wire slot-type photoelectric switch with integrated optical transmitter and receiver. The 5mm detection slot can detect objects passing through, including transparent materials, making it ideal for counting, posit...

SKU: AF-4162 | Brand: Adafruit

The Adafruit VEML7700 is a high-accuracy ambient light sensor from Vishay that outputs calibrated lux values over I2C. Unlike basic light sensors that return unitless brightness readings, the VEML7700 calculates lux (...

SKU: AF-3985 | Brand: Adafruit

This T-Slot Photo Interrupter with Cable is a simple plastic sensor with two elements - an IR LED and an IR photo-transistor, situated across a U-shaped gap. You can control the IR LED and turn it on to transmit IR...

SKU: AF-1375 | Brand: Adafruit

This breakout board is the simplest way to create a project with a single "toggle" capacitive touch sensor. No microcontroller is required here - just power with 1.8 to 5.5VDC and touch the pad to activate the sens...

SKU: DF-SEN0116 | Brand: DFRobot

An AB two-phase optical encoder designed for the DFRobot 2WD MiniQ robot chassis. Uses two infrared reflective sensors to generate quadrature pulse waveforms with approximately 90° phase difference, allowing you to de...

SKU: DF-SEN0219 | Brand: DFRobot

The concentration of carbon dioxide (0.03% usuallly) is related to daily life. Recently, there's a study showing that the atmospheric CO2 content has reached 0.0385% (385 ppm) which is the highest value since 2.1 ...

SKU: DF-SEN0523 | Brand: DFRobot

This IR break-beam photoelectric switch detects objects by sending an invisible infrared beam from an emitter to a receiver. When a non-transparent object passes between the two and breaks the beam, the receiver outpu...

SKU: DF-SEN0390 | Brand: DFRobot

A high-precision ambient light sensor housed in a transparent semisphere case for optimal light-gathering performance. With a wide 0–200 klx detection range and I2C communication, this sensor is ideal for applications...

SKU: AF-3986 | Brand: Adafruit

This T-Slot Photo Interrupter is a simple plastic sensor with two elements - an IR LED and an IR photo-transistor, situated across a U-shaped gap. You can control the IR LED and turn it on to transmit IR light acro...

SKU: LB-LS1177 | Brand: Little Bird

Laser Detector Module Want to set up your own laser tripwire? These little modules make it super simple. Just hook one up to your Arduino, line it up with a laser pointer, and you’ve got a working laser detection syst...

SKU: DF-SEN0636 | Brand: DFRobot

The Gravity UV Index Sensor measures ultraviolet radiation across the 240–370 nm wavelength range, covering UVA, UVB, and UVC bands. It directly outputs a UV index (0–11) and a harm risk level (1–5), eliminating the n...

SKU: AF-5913 | Brand: Adafruit

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 phototransis...

SKU: LB-LS5556 | Brand: Little Bird

PIR Infrared Nicera Pyroelectric Sensor, a compact and highly sensitive component designed for a wide range of applications requiring precise motion detection. Engineered with meticulous attention to detail, this sens...

SKU: SF-SEN-22956 | Brand: SparkFun

The SparkFun Photoacoustic Spectroscopy CO2 Sensor features the Infineon XENSIV PAS CO2 (PASCO2V01) sensor, which delivers highly accurate CO2 measurements in direct parts-per-million (ppm) format. The photoacoustic s...