5 PCS Optocoupler Slot-Type Speed Measuring Sensor

Description:
This is a Speed Measuring Sensor Module for Arduino. It is designed with a slotted optical switch sensor and indicator light.
It also can be with an active buzzer module and compose an alarm. This module can be widely used in motor speed detection and pulse counter. It also uses a wide voltage LM393 comparator. Strong driving ability (more than 15mA), a clean signal and good waveform are the features included by this module. It provides two types of output: digital switch output and analog for Sensitivity.

Specifications:
Using imported groove optical coupling sensor, width 5mm.
It has the output state light, the indicator light turns on high-level output and turns off when output is low level.
If it is covered, it will output a high level; otherwise, it outputs a low level.
If there is a block detection sensor, such as the speed of the motor encoder, the DO output interface can be directly connected to a microcontroller IO port.
DO modules can be connected to the relay, limit switch, and other functions.

Features:
Input Voltage: 3.3V ~ 5V
Output Type: Digital, Analog
Pin Number: 4 Pins
Size: 32mm x 14mm

Wiring Specification :
VCC
GND
DO: TTL Switch signal output
AO: Analog output

Package Include:
5 x Optocoupler Speed Measuring Sensor