74HC14D Optical Speed encoder Sensor Module

The 74HC14D Optical Speed Encoder Sensor Module is a high-precision optical detection module designed for speed measurement, rotary encoder projects, motor RPM monitoring, and robotics applications. Using an infrared optical sensing system and Schmitt trigger circuitry, it provides clean digital output signals for accurate speed detection and position sensing in Arduino, ESP32, STM32, and other microcontroller projects.