5V Two Channel Isolated Relay Module optocoupler High and Low Level Trigger

5V 2 Channel Isolated Relay Module optocoupler (with Light Coupling)

This is a 5V Dual Channel Relay Module with Optocoupler for Arduino PIC ARM. It can be used to control various appliances and other types of equipment with a large current. It can be controlled directly with 3.3V or 5V logic signals from a microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic).

This 5V Dual Channel Relay Module has a 1×4 (2.54mm pitch) pin header for connecting power (5V and 0V), and for controlling the 2 relays.

The pins are marked on the PCB as: GND – Connect 0V to this pin.

IN1 – Controls relay 1, active Low Relay will turn on when this input goes below about 2.0V

IN2 – Controls relay 2, active Low Relay will turn on when this input goes below about 2.0V

VCC – Connect 5V to this pin. It is used to power the optocouplers

Note: This 5V Dual Channel Relay Module is for low- level triggers only.

About high- level and low level-triggered mode: High-level trigger refers to the signal voltage between input and trigger, which can be understood as a signal input with VCC cathode short-circuit triggered away;
Low-level trigger refers to the signal voltage between the input terminal and Earth OV trigger, which can be understood as the signal input terminal and the GND negative electrode short circuit triggering away the 1-channel relay module connection
Jumper Instruction = The relay can be turned on when we connect 5v to one end and the other to -5v / Gnd, while talking about the jumper, if we short the VCC and the middle pin, then our relay will act as high high-level-triggered relay means that when we will apply + 5V input on its input pin it will be turned on and when the jumper will be set to “middle and GND”, it will act as a low-level triggered relay, It means that relay will be triggered when we implement the 5V / GND on its input pin.

Technical Details

Features

Applications :

• Home Automation: Controls multiple appliances, such as lights and fans, with electrical isolation for safety.
• Microcontroller Projects: Allows microcontrollers like Arduino to safely switch high-voltage devices.
• Industrial Automation: Enables reliable switching of machinery, motors, or pumps in industrial systems.
• Security Systems: Integrates with alarm systems for controlling sirens, locks, or other triggered devices.
• Power Systems: Used in power management to switch on/off devices such as transformers or power supplies.
• Remote Control Systems: Provides isolation and control for devices in wireless or remote control systems.

Integration with Arduino

Sample Code

Integration with Raspberry Pi

Sample Code

Physical Attributes

Package Includes