Fiber optic infrastructure for campus and cloud
Test equipment and cabling solutions

Optocoupler Relay Module Pin Diagram

Arduino Tutorial: 2-Channel Optocoupler Relay Module

The optocoupler is extensively utilized in computer terminals, thyristor control devices, measuring instruments, copiers, automatic ticketing systems, and

Relay Board

I need to create a PCB with 8 relays, an Arduino to control the relays, 120VAC to 5VDC converter for power to the relays, and a bunch of other things. There are a

Schematic, Amazon Relay Module: 1 Channel,

Schematic, Amazon Relay Module: 1 Channel, Optocoupler Isolation Hi/Low Trigger A ham radio friend (Dan, KA6RCZ) recently purchased an

5V Dual-Channel Relay Module

The dual-channel relay module is more or less the same as a single-channel relay module, but with some extra features like optical isolation. The

12V 8-Channel Relay Module with Optocoupler – Support

The 12V 8-Channel Relay Module with Optocoupler is designed to control multiple high-voltage devices using low-voltage signals from microcontrollers like Arduino, Raspberry Pi, and ESP32.

Relay Module Optocoupler: Schematic and Working Explained

This article shares the Relay Module Optocoupler Schematic and Working principle. Cheap DIY relay module project with guidance.

Opto-Isolated Relay Switching Module

The opto-coupler is a sealed four pin device containing a light emitting diode (LED) and a spatially separated photo transistor. This arrangement gives physical separation between the input (the LED)

Optocoupler Relay Module Schematic | PDF | Chess

Optocoupler Relay Module Schematic The document appears to be a schematic diagram for an electronic circuit involving multiple relays and components such

5V Four-Channel Relay Module

The four-channel relay module contains four 5V relays and the associated switching and isolating components, which makes interfacing with a

Arduino Tutorial: 2-Channel Optocoupler Relay Module

High-quality Songle relay featuring a single pole double throw (SPDT) configuration, with one common terminal, one normally open terminal, and one normally closed

2-Channel 5V 10A Optocoupler Relay Module User Guide

Complete user guide for the 2-channel 5V SPDT relay module with optocoupler isolation. Covers pinout, wiring to Arduino, JD-VCC jumper setup,

Arduino & Raspberry Pi PLC Complete Guide (2026)

An Arduino or Raspberry Pi becomes a real PLC with the right software (OpenPLC, Codesys) and I/O hardware (optocoupler input modules,

How to Connect a Relay through an Opto-Coupler

We will learn three methods, first method is by connecting relay directly with the optocoupler output pins, second method is by using external PNP transistors,

2 Channel 5V Relay Module

2 Channel Relay Module with Optocoupler LOW Level Triger expansion board, which is compatible with arduino Standard interface that can be controlled

How to Connect a Relay through an Opto-Coupler

In the following post I have explained how to drive a relay by using an isolated method, or through an optocoupler device. We will learn three methods, first

Optocoupler Relay Driver with PC817 & 2N3904

In this tutorial, we are going to make a circuit of the Optocoupler Relay Driver. Optocouplers are electronic components that are used to transfer electrical signals between two isolated circuits by

PC817 Optocoupler pinout, working and Example with Arduino

The diagram represents the pin configuration diagram and explains the functionality of each pin. In this pinout diagram of PC817, pin1 and pin2 are parts of the input side and pin3 – pin4 are output pins.

How to Use 5V 30A 1

Learn how to use the 5V 30A 1- Channel Relay Module With Optocoupler High/Low Level Trigger with detailed documentation, including pinouts, usage guides, and

5V 2 Channel 2 Road Relay Module with Optocoupler Isolation

5. COM2: Channel 2 relay common pin. 6. NO2: Channel 2 relay normally opened pin. High And Low Level Trigger Option: 1. S1: It is option switch for channel 1 relay. 2. S2: It is option switch for channel

How to Use One Channel Relay with Optocoupler: Pinouts, Specs,

Learn how to use the One Channel Relay with Optocoupler with detailed documentation, including pinouts, usage guides, and example projects. Perfect for students, hobbyists, and developers

5V 8-Channel Relay Module

The optocoupler used here is the PCF817, which is a common optocoupler that can also be found in through-hole packaging. How to Use the

Sonoff Mini Wiring Diagram Alternator Nissan Altima

Sonoff Nissan Wiring Mini Altima Alternator Diagram Injunction Of Two Wires Is Usually Indicated By Black Dot In The Intersection Of 2 Lines.

Help with (JD-Vcc) Optocoupler Relay Module

Hello, I''m aware how a normal relay works. I''m familar with how to use an n-Channel MOSFET with the Arduino. (I also build Box Mods). But I''m stuck

How to Use 2 Channel 5V 10A Relay Module with Optocoupler:

Learn how to use the 2 Channel 5V 10A Relay Module with Optocoupler with detailed documentation, including pinouts, usage guides, and example projects. Perfect for students, hobbyists, and

How to Use Relay with optocoupler: Examples, Pinouts,

Learn how to use the Relay with optocoupler with detailed documentation, including pinouts, usage guides, and example projects. Perfect for students, hobbyists,

Opto-Isolated Relay Switching Module

Circuit : Andy Collinson Email : Description A very simple dual channel optical isolated relay module. The input can be driven from 3.3V or 5V sources. The

More industry information

Contact Us

We Look Forward to Working with You

Contact Information

Phone +27 73 849 2156
Address 25 Riebeek Street, Cape Town, 8001, South Africa

Send an Inquiry