Motion (PIR, ultrasonic)

SKU: LB-00158 | Brand: Little Bird

This PIR sensor is suitable for use with Arduino and Raspberry PI. The 3.3v logic level is very handy as it allows you to use this sensor with 3.3v Arduinos like the Due or Pro Mini as well as 5V like the Uno as 3....

SKU: LB-LR0230 | Brand: Little Bird

The HC-SR04 is a widely used ultrasonic distance sensor that measures distances from 2cm to 500cm (approximately 5 metres) with 1cm resolution. It works by emitting a 40kHz ultrasonic pulse, then measuring the time it...

SKU: EF-EF04055 | Brand: ElecFreaks

OCTOPUS PIR Sensor module is a type of electronic building block based on AM412 pyroelectric digital smart sensor. It can be used in sensing and detection of human or animal motion, sensing distance is about 4-5 me...

SKU: AF-189 | Brand: Adafruit

PIR sensors are used to detect motion from pets/humanoids from about 20 feet away (possibly works on zombies, not guaranteed). This one has an adjustable delay before firing (approx 2-4 seconds), adjustable sensiti...

SKU: DF-SEN0521 | Brand: DFRobot

The 5.8GHz Microwave Radar Module is a high-sensitivity motion detection sensor that transmits and receives 5.8GHz electromagnetic waves. By analysing the difference between transmitted and reflected signals, it relia...

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-SEN0312 | Brand: DFRobot

The ME007YS is a waterproof ultrasonic distance sensor designed for non-contact liquid level measurement and other distance sensing applications. With an IP67-rated sealed probe and UART serial output, it delivers rel...

SKU: DF-SEN0208 | Brand: DFRobot

Most ultrasonic distance sensors aren't waterproof which can be a problem if you need your project to withstand the elements outdoors. No need to worry any more! We have developed waterproof ultrasonic distance senso...

SKU: SF-SEN-15569 | Brand: SparkFun

This is the HC-SR04 ultrasonic distance sensor. This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. Each HC-SR04 module includes an u...

SKU: AF-979 | Brand: Adafruit

The LV-EZ0 from MaxBotix is a compact ultrasonic rangefinder providing short to long-range detection. It can detect objects from 0 to 254 inches (6.45 m) and provides calibrated range information from 6 inches out to ...

SKU: LB-LS6569 | Brand: Little Bird

A DIY soldering kit that builds into a functional ultrasonic distance meter. Using an HC-SR04 ultrasonic sensor, STC89C52 microcontroller, and 3-digit 7-segment display, this kit measures distances from 5cm to 4m with...

SKU: DF-SEN0623 | Brand: DFRobot

The C1001 mmWave Human Detection Sensor is a high-precision 60GHz millimeter-wave radar sensor engineered for advanced human detection. Unlike standard 24GHz millimeter-wave sensors that are limited to detecting prese...

SKU: LB-PIR-CABLE | Brand: Little Bird

A compact passive infrared (PIR) motion sensor housed in a protective case with a 45cm cable. Detects motion within a 6-metre range and 120° field of view, making it ideal for security systems, automatic lighting, and...

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...

SKU: SF-SEN-13285 | Brand: SparkFun

This is a simple to use motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the ‘alarm’ pin will go low.This unit works great from 5...

SKU: SF-SEN-28798 | Brand: SparkFun

  This is the HC-SR04 ultrasonic distance sensor, now in Red! This economical sensor offers non-contact measurement functionality ranging from 2cm to 400cm, with a ranging accuracy of up to 3mm. Each HC-SR04 ...

SKU: DF-SEN0591 | Brand: DFRobot

##Introduction With a measurement range of up to 3m, the RS485 ultrasonic obstacle avoidance distance ranging sensor offers advantages such as small blind zones (Measurement accuracy: 1 + (S * 0.3%) cm), narrow measur...

SKU: DF-SEN0598 | Brand: DFRobot

An IP68-rated ultrasonic obstacle avoidance sensor specifically designed for underwater applications. With a measurement range of 2–300cm and UART output, this compact sensor enables underwater vehicles and robots to ...

SKU: DF-SEN0151 | Brand: DFRobot

Ultrasonic sensors emit ultrasonic pulses, and by measuring the time of ultrasonic pulse reaches the object and back to the transducer, the distance of sensor from the target object is calculated. They are widely used...