IR Infrared Sensor Module EC Buying Slot Optocoupler Sensor for

Description

Product Overview

The EC Buying IR infrared sensor module is a compact, 10‑piece kit designed for precise object detection and speed measurement in a wide range of hobbyist and industrial applications. Each module incorporates a high‑efficiency infrared LED paired with an NPN photoelectric transistor, forming a slot‑type optocoupler with a 5.9 mm opening. When a non‑transparent object interrupts the infrared beam, the sensor outputs a clean low TTL level, thanks to an integrated Schmidt‑trigger circuit that eliminates jitter and noise. The device operates on a flexible voltage range of 3.3 V to 5 V, making it compatible with most Arduino boards, ESP32, Raspberry Pi GPIOs, and other microcontroller platforms. Mechanical mounting is straightforward: two M3‑size screw holes on opposite ends allow secure attachment to a prototype board or enclosure. The module’s compact dimensions (5.63 × 4.13 × 0.83 in) and lightweight construction (0.63 oz) ensure it fits easily into tight spaces while maintaining reliable performance.

Usage

This sensor excels in projects that require real‑time detection of moving parts or distance measurement. Typical use cases include small‑car speed measurement, conveyor‑belt monitoring, robotic arm position feedback, and wheel‑rotation counting for autonomous vehicles. Because the output is a digital switch (0 or 1), integration with Arduino sketches is as simple as reading a digital pin and counting pulses. The module also works well in educational settings, where students can experiment with timing, frequency, and signal processing without dealing with complex analog circuitry. Its low power consumption and stable output make it suitable for battery‑powered devices, such as portable drones or remote‑controlled toys. The sensor can be paired with additional components like pull‑up resistors, debouncing circuits, or interrupt‑driven firmware to further enhance reliability in noisy environments.

Why Choose Us

EC Buying is a trusted supplier in the industrial and scientific market, known for rigorous quality control and responsive customer support. Each sensor module undergoes a multi‑stage testing process that verifies voltage tolerance, response time, and output stability before it leaves the factory. The design incorporates a Schmidt‑trigger stage, a feature often omitted in lower‑cost alternatives, which guarantees clean transitions even when the infrared beam is partially obstructed. Our packaging includes a full set of ten modules, allowing developers to prototype multiple projects simultaneously or replace units without delay. In addition, we provide comprehensive documentation, example Arduino code, and a dedicated technical support line that assists customers from initial setup through advanced integration. With a 4.6‑star rating from over 20 verified buyers, the module has proven its reliability in both hobbyist and professional contexts.

Key Features

• Compact 10‑piece kit provides immediate redundancy for testing and replacement.
• 5.9 mm slot width enables detection of thin objects and precise speed measurement.
• Integrated Schmidt‑trigger eliminates signal jitter for reliable digital output.
• Wide operating voltage (3.3‑5 V) ensures compatibility with most microcontroller platforms.
• Dedicated after‑sales support and detailed documentation for hassle‑free integration.

FAQ

What voltage range does the sensor support?

The module operates safely between 3.3 V and 5 V, making it suitable for Arduino, ESP32, and many other 5 V‑compatible boards.

How does the Schmidt‑trigger improve performance?

The Schmidt‑trigger circuit filters out noise and small fluctuations in the infrared signal, providing a clean, stable low‑level TTL output whenever the beam is interrupted.

Can the sensor be used for distance measurement?

Yes. By measuring the time between successive interruptions of the beam, you can calculate the speed of a moving object and infer distance traveled.

Is the module compatible with Raspberry Pi GPIO pins?

Absolutely. The digital output can be read directly by a Raspberry Pi GPIO pin configured as an input, provided the Pi operates at 3.3 V logic levels.

What mounting options are available?

The sensor includes M3‑size screw holes on both ends, allowing you to secure it to a prototype board, 3D‑printed enclosure, or any standard mounting surface.