Sensors & Input

SKU: SF-SEN-18367 | Brand: SparkFun

A sealed, waterproof DS18B20 digital temperature probe for precise measurements in wet or harsh environments. The sensor communicates over a 1-Wire interface, requiring just one data pin (plus ground) to connect to yo...

SKU: SF-COM-10601 | Brand: SparkFun

An insulated reed switch that closes when exposed to a magnetic field and opens when the field is removed. The encapsulated design is more durable than glass reed switches and can be easily populated on a PCB. Key Fe...

SKU: LB-00111 | Brand: Little Bird

 Description:The rotary encoder is used to measure the speed and with PWM technology can achieve rapid speed devicesWith fixed bolt hole for easy installationGreat for DIY projectSpecification:Model: KY-040Workin...

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-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-DFR0028 | Brand: DFRobot

This is an arduino tilt sensor. It is used to detect orientation. Inside the sensor, there is a ball that make contact with the pins when the case is upright. Tilt the sensor over and the balls don't touch, thus n...

SKU: SF-SEN-10289 | Brand: SparkFun

This AT407 basic tilt switch can easily be used to detect orientation. Inside the can is a ball that make contact with the pins when the case is upright. Tilt the case over and the balls don’t touch, thus not making a...

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: PI-COM2800 | Brand: Pimoroni

Add Internet to your next project with an adorable, bite-sized WiFi microcontroller, at a price you like! The ESP8266 processor from Espressif is an 80 MHz microcontroller with a full WiFi front-end (both as client...

SKU: PL-2485 | Brand: Pololu

The Pololu Basic 2-Channel SPDT Relay Carrier provides simple, independent control of two single-pole, double-throw (SPDT) relay switches from low-voltage, low-current control signals. This assembled version comes rea...

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: KI-5336 | Brand: Kitronik

The Kitronik Smart Air Quality Board provides a complete air monitoring and datalogging solution for the Raspberry Pi Pico. With an onboard BME688 environmental sensor, OLED display, real-time clock support, and Micro...

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...