Sensors & Input

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: AF-4409 | Brand: Adafruit

The Adafruit STEMMA Non-Latching Mini Relay lets you switch lamps, fans, solenoids, and other small appliances (up to 250 VAC/DC) using any 3V or 5V microcontroller — no soldering, flyback diodes, or level shifting re...

SKU: SF-BOB-13906 | Brand: SparkFun

The SparkFun Multiplexer Breakout provides access to all pins and features of the 74HC4051, an 8-channel analog multiplexer/demultiplexer. The 74HC4051 allows you to turn four I/O pins into eight multifunctional, indi...

SKU: DF-SEN0216 | Brand: DFRobot

The Water Flow sensor measures the rate of a liquid flowing through it. The YF-S401 water flow sensor consists of a plastic valve body, flow rotor and hall effect sensor. It is usually used at the inlet end to det...

SKU: DF-SEN0511 | Brand: DFRobot

This waterproof DS18B20 digital temperature sensor delivers accurate readings over a simple 1-Wire interface, requiring just a single data pin on your microcontroller. The sealed probe and silicone lead wire make it i...

SKU: DF-FIT0850 | Brand: DFRobot

This NPN to PNP signal converter module bridges the gap when your sensor outputs an NPN signal but your controller or PLC expects a PNP input. Simply wire it inline between the sensor and the controller to convert the...

SKU: DF-MBT0034 | Brand: DFRobot

The Environment Science Expansion Board V2.0 is a micro:bit add-on designed for STEAM education, integrating 14 environmental sensors and modules onto a single tree-shaped board. Students can measure UV levels, temper...

SKU: EC-SPS40201S | Brand: Elecrow

This Elecrow 4-channel IR reflective sensor module combines four infrared emitter/receiver pairs with a mainboard that processes all signals. When an object enters the detection range, the corresponding channel output...

SKU: SF-DEV-17047 | Brand: SparkFun

The SparkFun Qwiic GPIO adds eight additional digital I/O pins to your project via I2C, based on the TCA9534 I/O Expander from Texas Instruments. Read and write pins just like standard Arduino digital pins using the i...

SKU: SF-COM-15141 | Brand: SparkFun

Rotary encoders can be used similarly to potentiometers. The difference being that an encoder has full rotation without limits (It just goes round and round). They output gray code so that you can tell how much and in...

SKU: SF-SEN-14520 | Brand: SparkFun

The SparkFun Capacitive Touch Breakout provides a single momentary touch button using the AT42QT1011 capacitive sense chip. Simply supply 1.8–5 V and ground — the chip handles all touch monitoring and outputs a digita...

SKU: WS-30706 | Brand: Waveshare

Unleash your creativity and develop interactive applications with the RP2350 2.8inch Capacitive Touch Display Development Board. This cutting-edge board is packed with features that make it perfect for hobbyists, educ...

SKU: SF-KIT-19518 | Brand: SparkFun

The SparkFun PIR Breakout Starter Kit includes everything needed to get started with passive infrared motion detection. Built around the Panasonic EKMB1107112 PIR sensor, this kit's breakout board offers ultra-low 1µA...

SKU: DF-SEN0447 | Brand: DFRobot

A capacitive proximity sensor with an adjustable detection range of 1–10 mm, capable of detecting both metallic and non-metallic objects. Unlike inductive sensors that only respond to metals, this capacitive sensor de...

SKU: DF-DFR0809 | Brand: DFRobot

The ESP32-C3-MINI-1-N4 is a compact Wi-Fi and Bluetooth Low Energy module from Espressif, built around the ESP32-C3FN4 chip with a 32-bit RISC-V single-core processor running at up to 160 MHz. It includes 4 MB of embe...

SKU: AF-4534 | Brand: Adafruit

The Bonsai Buckaroo is a compact add-on board for micro:bit and Adafruit CLUE that turns your board into a plant care monitoring and watering system. Bolt it on with 5 screws to get a buzzer, motor driver, and soil mo...

SKU: DF-SEN0433 | Brand: DFRobot

A digital vibration sensor module that detects vibration using an internal inductance coil. When vibration is detected, the module outputs a LOW signal and its on-board LED indicator lights up. Sensitivity is adjustab...

SKU: DF-SEN0388 | Brand: DFRobot

This is a non-contact ultrasonic ranging sensor of high-performance from URM09 series, employing standard PH2.0-3P Gravity vertical interface. It provides an accuracy of 1% within an effective measuring range of 2~500...

SKU: EF-EF03085 | Brand: ElecFreaks

The HC-SR04 is a widely used ultrasonic distance sensor that provides non-contact measurement from 2 cm to 450 cm with up to 3 mm resolution. It uses a 40 kHz ultrasonic transducer pair — one transmitter and one recei...

SKU: DF-SEN0301 | Brand: DFRobot

This is an ultrasonic distance sensor(ULS) of high performance with an enclosed waterproof probe. The sensor, like many other ultrasonic sensors, based on the principle of ultrasonic echo ranging, determines the dista...