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AI Overview
If you’re looking for a motion sensor to trigger audio from a speaker, the most direct options are motion-activated audio players (motion sensor + speaker/MP3 built in), or a standalone motion sensor module you wire into your own audio/speaker setup.
Motion-activated speaker / audio player (all-in-one)
- Recordable Audio Speaker Sound Box Built-in MP3 Player ($34.35) — a compact motion-triggered sound box with built-in audio playback.
- Motion Activated Audio Player with Separate PIR ($99.80) — PIR motion sensor triggers audio; separate PIR makes placement easier for installations.
- Motion Activated Audio Player with Two Separate PIR ($100.70) — similar, but supports two separate PIR sensors for wider/dual-zone triggering.
Motion sensor modules (to connect to an amp/speaker or controller)
- Mini PIR Motion Sensor ($5.35) — tiny PIR motion sensor module for simple motion-trigger builds.
- Arduino Compatible PIR Motion Detector Module ($7.20) — easy digital motion output for Arduino/microcontroller projects.
- Breadboard-friendly Mini PIR Motion Sensor with 3 Pin Header ($8.30) — compact 3-pin PIR for breadboards/prototyping.
- Mini PIR Sensor with Time and Sensitivity Control - BS612 ($4.15) — PIR with adjustable time + sensitivity.
Higher-end “presence” detection (better than PIR for stationary people)
- Fermion: C4002 mmWave Human Presence Sensor - Static & Motion Detection for Home Assistant (10m) ($21.90) — 24GHz mmWave presence sensor that can detect still occupants (useful for smart-audio/automation triggers).
- mmWave - C4001 24GHz Human Presence Detection Sensor (25 Meters, UART) ($25.75) — longer-range UART mmWave presence/motion sensing.
Do you want an all-in-one motion-activated speaker/audio player, or just a motion sensor module to trigger your existing speaker?
Collections
Showing 1-20 of 60 products
Fermion: C4002 mmWave Human Presence Sensor - Static & Motion Detection for Home Assistant (10m)
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The Fermion C4002 is a 24GHz FMCW mmWave radar module designed for true human presence detection, including motion, stationary people and micro-movements such as breathing or chest expansion. It is aimed at smarter automation than traditional PIR sensors, which can miss occupants who are sitting ...
mmWave - C4001 24GHz Human Presence Detection Sensor (25 Meters, UART)
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C4001 24GHz Millimeter-Wave Presence Sensor (25 m Range) The C4001 Millimeter-Wave Presence Sensor is a high-precision FMCW radar module designed for reliable human presence, motion, and distance detection. Operating at 24 GHz, the C4001 delivers exceptional performance in real-world environments...
BOSON Inventor Series - Royal Guard STEAM Project Kit
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The BOSON Inventor Series Royal Guard Kit is a coding-free STEAM project for students in Grades 1–3. Using plug-and-play BOSON modules, learners build a royal guard that begins patrolling when it detects someone approaching — teaching the fundamentals of motion sensors and servo control through h...
9-axis compass module CJMCU-MPU9150
The CJMCU-MPU9150 is a 9-axis motion tracking breakout board based on the InvenSense MPU-9150 System in Package (SiP). It combines a 3-axis gyroscope, 3-axis accelerometer, and 3-axis digital compass (magnetometer) in a single module, providing complete orientation and motion sensing over I2C. T...
Adafruit STHS34PF80 IR Presence / Motion Sensor
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The Adafruit STHS34PF80 is a compact IR presence and motion sensor that detects human and animal presence up to 4 metres away — without requiring a lens. Unlike traditional chunky PIR sensors with simple digital output, this sensor provides a full I2C interface with detailed readings on IR intens...
ADXL335 - 5V ready triple-axis accelerometer (+-3g analog out)
A precision triple-axis accelerometer breakout featuring the Analog Devices ADXL335. With a ±3 g measurement range and analog outputs for X, Y, and Z axes, this sensor is ideal for tilt sensing, motion detection, and orientation measurement in general-purpose applications. The onboard 3.3V regul...
Breadboard-friendly Mini PIR Motion Sensor with 3 Pin Header
A compact passive infrared (PIR) motion sensor that detects movement from people and animals at distances of 2 to 5 metres. Much smaller than standard PIR modules, this sensor is ideal for unobtrusive projects and plugs directly into a breadboard or perfboard. Powered from 3–12 V DC via an onboa...
PIR Motion Sensor Module:DYP-ME003 SEN005
A passive infrared (PIR) motion sensor module based on the BISS0001 IC, capable of detecting human movement at up to 7 metres. Outputs a digital high signal when motion is detected, making it easy to interface with Arduino, Raspberry Pi, and other microcontrollers. Features adjustable sensitivit...
Mini Basic PIR Sensor - BL412
The BL412 is a compact passive infrared (PIR) motion sensor designed for detecting movement from people and animals at distances of approximately 3–8 m. Much smaller than standard PIR modules, it is well suited for unobtrusive projects and fits easily on breadboards or perfboard. The sensor runs...
DFRobot Fermion BMI323 6DOF IMU Sensor
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Built around the Bosch BMI323, this compact Fermion module combines a 3-axis accelerometer and a 3-axis gyroscope on a 16 mm × 16 mm board. It provides high-rate acceleration and angular velocity data over I²C for embedded motion sensing, wearables, robotics, battery-powered IoT nodes and compact...
Conductive Rubber Cord Stretch Sensor Kit - 3m
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Measuring stretch and movement can be tricky, and this conductive rubber cord gives you a simple, hands-on way to do it. The cord is made from carbon-black impregnated rubber, with resistance that increases as it is pulled longer.In its relaxed state the cord is around 350 ohms per inch, and as i...
SparkFun 9DoF IMU Breakout - ICM-20948 (Qwiic)
The SparkFun 9DoF IMU Breakout brings InvenSense's ICM-20948 9-axis motion tracking sensor to a Qwiic-enabled breakout board with an on-board logic level shifter and broken-out GPIO pins. The ICM-20948 is an extremely low-power sensor supporting both I2C and SPI communication, suited for wearable...
Gravity: Arduino PIR (Motion) Sensor
A passive infrared (PIR) motion sensor from DFRobot's Gravity series. It detects infrared radiation from people and animals in motion and outputs a digital HIGH signal when movement is detected — ideal for security systems, occupancy sensing, and automated lighting projects. The sensor operates ...
Mini PIR Sensor with Time and Sensitivity Control - BS612
The BS612 is a compact, fully configurable mini PIR motion sensor that detects movement from approximately 3–8 metres away with a 120° detection spread. Its small form factor makes it ideal for unobtrusive motion-sensing projects where a full-size PIR module would be too bulky. Unlike basic PIR ...
Waterproof 3M Motion Sensor LED Strip with 4*AAA Battery Box
This LED light strip in Cool White is perfect for adding a touch of light and style to your home. It comes with a motion sensor control box that turns the lights on and off automatically, and has three brightness settings to choose from. The strip is made of waterproof and flexible material, m...
SparkFun PIR Breakout - 170uA (EKMC4607112K)
Passive Infrared (PIR) sensors are great for detecting motion in a small area around the sensor. The 170µA SparkFun EKMC4607112K PIR Breakout is a simple board equipped with an EKM-series PIR sensor from Panasonic®. The EKM-series PIR sensors are optimized for small movements to offer motion-sens...
Battery Powered PIR Motion Sensor 9 LED 0.5W Night Light
Light up your night with this Battery Powered PIR Motion Sensor with 9 LED illumination.This LED light is perfect for providing light in dark areas around your home. The PIR motion sensor allows the light to turn on automatically when motion is detected, and the 9 LED bulbs provide plenty of l...
ADXL343 - Triple-Axis Accelerometer (+-2g/4g/8g/16g) w/ I2C/SPI
A versatile triple-axis digital accelerometer breakout featuring the Analog Devices ADXL343. With selectable sensitivity of ±2g, ±4g, ±8g, or ±16g and up to 13-bit resolution, this sensor handles everything from precise tilt measurement to high-speed motion tracking over I2C or SPI. Built-in mot...
Yahboom Pi-motion AI Camera platform for Raspberry Pi 4B/3B+
This Pi-motion AI camera is perfect for both artificial intelligence beginners and Raspberry Pi fans. It is based on the Raspberry Pi board, equipped with a profession multi-function expansion board, high-quality metal servo, and a beautiful and wear-resistant aluminum alloy shape. For this produ...
Waterproof 3M Motion Sensor LED Strip with 4*AAA Battery Box Warm
A battery-powered, motion-activated LED strip for instant, no-wiring lighting anywhere in your home. The built-in PIR motion sensor automatically turns the strip on when movement is detected and off again when the area is clear — ideal for cupboards, shelving, under-bed lighting, hallways, and st...
