Slot Type IR Optocoupler Speed Sensor Module Counter Module 51 AVR PIC 3.3V-5V Diy Kit Optical Speed Measuring Module – KSH 200 at HIMA TRONICS Mombasa – Top quality sensors. Best electronics in Kenya. Shop now for Arduino, ESP32, sensors and IoT devices.
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Slot Type IR Optocoupler Speed Sensor Module Counter Module 51 AVR PIC 3.3V-5V Diy Kit Optical Speed Measuring Module

SKU: HMJ728 Category: Sensors
KSH 200.00
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Product Description

Slot Type IR Optocoupler Speed Sensor Module for Arduino and MCU Projects

= Optical Speed Measuring Module for Motor Speed, Pulse Counting, and Position Detection =

This slot-type IR optocoupler speed sensor module is a compact and reliable optical detection module designed for accurate speed measurement, pulse counting, and position sensing. Based on the LM393 comparator and an infrared optocoupler, it provides a clean digital output for seamless integration with Arduino, AVR, PIC, and other microcontrollers .

Accurate and Reliable Detection Uses an infrared LED and phototransistor for noncontact optical interruption detection .
Clean Digital Output Equipped with an LM393 comparator and Schmitt trigger for stable, noiseresistant TTL signal output .
Operating voltage is 3.3V to 5V DC, compatible with both 3.3V and 5V logic systems .
The output logic is active LOW: the output is LOW when the beam is unobstructed, and HIGH when the beam is interrupted .
The module outputs a digital signal only (DO); the AO pin is typically non-functional .

= Technical Specifications =

ParameterValue
Main ChipLM393 comparator
Operating Voltage3.3V to 5V DC
Output SignalTTL Digital (HIGH/LOW)
Slot Width5mm to 10mm (typical 5mm)
PCB Size~31mm x 14mm (varies by version)
MountingM3 screw mounting holes

= Key Features =

+LM393 Comparator ensures stable, clean signal with high drive capability (>15mA) .

+Infrared SlotType Optocoupler offers robust antiinterference performance .

+Onboard Status LED visually indicates output logic state .

+DO output interface allows direct connection to MCU I/O ports for sensor block detection and motor speed monitoring .

+M3 bolt holes enable simple and secure mounting on any chassis .

+Power indicator LED shows module status.

== Applications ==

  1. Motor speed detection using an encoder disc .
  2. Pulse counting and rotation measurement .
  3. Position limit sensing and object detection .
  4. Relay and buzzer triggering as part of an alarm or limit switch system .
  5. Robotics, automation, and industrial control projects .
Reliable and Easy to Use - Digital output simplifies integration with any microcontroller.
Versatile Applications - Suitable for speed measurement, RPM detection, object counting, and more .

√ Compatible with Arduino, Raspberry Pi, ESP32, STM32, 51 Series, AVR, and PIC microcontrollers .

√ Wide voltage range for flexible operation .

√ M3 mounting holes for secure installation .

√ Includes power and output LEDs for immediate status feedback .

= Troubleshooting =

No output signal:

  • Verify VCC and GND connections.
  • Ensure the module is powered within 3.3V to 5V.
  • Check the DO pin connection to the microcontroller input.

Inconsistent or unreliable readings:

  • Ensure the encoder disc or object passes cleanly through the slot.
  • Verify the slot and optocoupler are free from dust or debris.
  • If using a long cable, ensure it is shielded to avoid interference .