Blue speed sensor:
Widely used in motor speed detection, pulse counting, position limit and so on.
- uses imported groove coupler sensor, slot width 5mm.
- output status indicator lamp output high, output low lights.
- block, output high; no shelter, output low.
- comparator output signal clean, good waveform, driving ability, than 15mA.
- working voltage of 3.3V-5V
- output format: digital switching output (0 and 1)
- a fixed bolt holes for easy installation
- small PCB board size: 3.2cm x 1.4cm
- using a wide voltage comparator LM393
Module for use:
- module slot unobstructed, receiver tube conduction module DO output low, when blocked, DO output high;
- DO output interface can be directly connected to the microcontroller IO port, whether the sensor with barriers, such as the motor speed can be detected with the motor encoder.
- DO module can be connected to relays, limit switches and other functional composition, and to be connected with active buzzer module, consisting of alarm.
Product wiring instructions:
- VCC positive power supply 3.3-5V
- GND power supply is negative
- DO TTL switching signal output
- AO this module does not work
Black speed sensor:
Widely used in motor speed detection, pulse counting, position limit, etc.
- uses imported slot type optocoupler sensor
- groove width is 10mm.
- there is an output status indicator, the output high level light is off, and the output low level light is on.
- there is occlusion, output high level; no occlusion, output low level.
- comparator output, the signal is clean, the waveform is good, the driving ability is strong, more than 15mA.
- working voltage 3.3V-5V
- output form: digital switch output (0 and 1)
- with fixed bolt holes for easy installation
- small board PCB size: 2.3cmx2cm
- use a wide voltage LM393 comparator
1. When there is no occlusion in the module slot, the receiving tube is turned on, and the module DO outputs a low level. When occluding, the DO outputs a high level;
2. The module DO can be connected to the relay to form a limit switch and other functions. It can also be connected to the active buzzer module to form an alarm.