Photoelectric Beam Speed Sensor Module

Module functions:

• Wide voltage comparator LM393
• Slot optocoupler, slot width: 5mm
• Output status indicator: high – ON, LOW – OFF (with disability: output high; with disability: output low)
• Working voltage: 3.3 V – 5 V
• Output format: digital switching output (0 and 1)
• Fixed mounting holes for easy installation
• Small PCB size: 3.2 cm x 1.4 cm

Introduction:

1. If the slot is unobstructed, DO output – LOW. If the slot is blocked, DO output – HIGH
2. DO can be connected directly to the microcontroller’s IO port, regardless of whether the sensor is unobstructed. The motor speed can be measured using the motor encoder.
3. DO can be connected to relays as a limit switch.
4. DO can be connected as an alarm system with an active buzzer module.

Cabling:

• VCC – positive power supply 3.3-5V
• GND – negative power supply 
• DO – TTL switching signal output
• AO – no function