2pcs Slot-type Optocoupler Module for Arduino Voltage 3.3V-5V Speed Encoder

• 2 Pieces.
• 2pcs Slot-type Optocoupler Module for Arduino Voltage 3.3V-5V Speed Encoder.
• Uses imported groove coupler sensor.
• Groove width of 5mm.
• Output status indicator, the lamp output high, output low lights .
• Obscured output high; unobstructed output low .
• The comparator output, the signal is clean, the waveform, driving ability, more than 15mA .
• Operating voltage 3.3V-5V .
• The output in the form: Digital switching outputs (0 and 1) .
• A fixed bolt hole for easy installation .
• Small PCB Dimensions: 3.2cm x 1.4cm .
• Using a wide voltage LM393 comparator .

Usage Instructions

• 1 module slot unobstructed, receiver tube conduction module DO output low, shelter, DO output high; .
• 2 module DO connected to the relay, composed of the limit switch functions can also be connected to the active buzzer module, composed of the alarm.