MOC7811 Slotted Opto Isolator Module (Encoder Sensor)

MOC7811 Slotted Opto Isolator Module (Encoder Sensor)

The MOC7811 Slotted Opto Isolator Module is a compact and reliable infrared-based sensor module widely used for object detection, speed sensing, encoder applications, and position tracking in embedded and robotics projects. This module works by using an IR transmitter and phototransistor placed opposite each other inside a slot. When an object interrupts the infrared beam, the module detects the change and provides a digital output signal.

This sensor is commonly used in motor speed measurement systems, wheel encoders, line counters, and automation projects. It is highly compatible with Arduino, ESP32, Raspberry Pi, STM32, and other microcontroller platforms, making it suitable for students, hobbyists, and professional developers.

The module provides stable performance with low power consumption and fast response time. Its compact PCB design allows easy integration into robotics and industrial automation systems. The onboard indicator LED helps users monitor sensor activity during operation and debugging.

At RoboCircuitHub, we provide high-quality electronic components and reliable embedded solutions for innovators, students, and developers. The MOC7811 Encoder Sensor Module is an excellent choice for learning sensor interfacing and building real-time motion detection applications.

Specifications

• Sensor Type: Slotted Opto Isolator / Encoder Sensor
• Model: MOC7811
• Operating Voltage: 3.3V to 5V DC
• Output Type: Digital Output
• Detection Method: Infrared Beam Interruption
• Response Time: Fast Switching Response
• Compatible Boards: Arduino, ESP32, STM32, Raspberry Pi
• Indicator LED: Yes
• PCB Design: Compact and Lightweight
• Mounting: Easy to Install
• Applications: Encoder, Motor Speed Detection, Object Counting, Robotics

Applications

• Motor RPM Measurement
• Wheel Encoder Systems
• Robotics Projects
• Industrial Automation
• Object Detection Systems
• DIY Embedded Projects
• Smart Monitoring Systems

RoboCircuitHub brings you trusted electronic modules and IoT components designed for practical learning, prototyping, and innovative product development.