HC-SR501 PIR Motion Sensor Module – Adjustable Infrared Detector (Arduino Compatible)The HC-SR501 PIR (Passive Infrared) Motion Sensor Module is a reliable and easy-to-use solution for detecting movement in electronics projects. It senses changes in infrared radiation emitted by people or animals, triggering an output when motion is detected within its range.With adjustable sensitivity and delay time, the module can be fine-tuned to suit different classroom and project environments. It operates using a digital output, making it simple to interface with Arduino, ESP32, and other microcontrollers.Widely used in security systems, lighting control, and automation projects, the HC-SR501 is ideal for teaching how sensors interact with real-world inputs. It provides a practical way for students to explore motion detection, timing, and control systems in STEM learning.Key FeaturesDetects motion using passive infrared (PIR) technologyAdjustable sensitivity (range) and delay timeDigital HIGH/LOW output signalRepeatable and non-repeatable trigger modesCompatible with Arduino, ESP32, and similar boardsEasy 3-pin interface (VCC, OUT, GND)Classroom ApplicationsMotion-activated lighting systemsSecurity alarm projectsSmart room or automation simulationsTeaching sensor-based input systemsExploring timing and delay functions in codeAustralian Curriculum LinksAligned with Design and Technologies and Digital Technologies:ACTDIK024 / ACTDIK034 – Collecting and interpreting data from sensorsACTDEP016 / ACTDEP025 – Designing and implementing digital solutionsACTDEK019 – Understanding electrical systems and componentsACTDIK036 – Designing interactive systems with user inputSupports development of:Computational thinking and logicReal-world problem solvingUnderstanding of sensors and automation systemsYear Level SuitabilityYears 7–10: Introduction to sensors, inputs, and simple automationYears 9–12: Advanced projects involving timing, control systems, and coding logicSuitable for beginners with guided instructionLesson & Project IdeasMotion-Activated Light: Turn an LED on when movement is detectedIntruder Alarm System: Trigger a buzzer or siren when motion occursSmart Room Prototype: Automate lights or devices based on occupancyTiming Investigation: Adjust delay settings and measure output durationEnergy Efficiency Project: Simulate automatic lighting systems for classrooms SKU: E1041 Categories: Infra Red, Modules Tags: Arduino compatible, automation, automation sensor module, HC-SR501, HC-SR501 PIR sensor, infrared sensor, infrared sensor Arduino, motion, motion detection module, motion sensor, motion sensor module Arduino, pir, PIR motion detector, PIR sensor, Sensor, sensor module, STEM education, STEM electronics sensor Brand: Systems Engineering
