Relays and optocouplers

How to Connect a Relay through an Opto-Coupler - Homemade Circuit Projects

driver - Driving relay directly from optocoupler, what is best? - Electrical Engineering Stack Exchange

Relay Module with Optocoupler 1 Channel High Low Level Trigger Relay Module Board AC 250V/10A DC 30V/10A (5V): : Industrial & Scientific

4 Relay Optocoupler Level High, Optocoupler 8 Channel Relay

1pcs 2 channel relay module 5V12V24V with optocoupler isolation relay module output high/low level trigger electronic DIY.

Relay Module 5V12V24V, with optocoupler isolation relay module 1pcs 2 channel

Grove - Optocoupler Relay (M281)

1 x Optocoupler Driver Relay Module. This is 1-Channel high level Relay Module. Equiped with power relay, 10A, AC 250V, DC 30V. Load: 10A, AC 250V, DC

1-Channel 5V Optocoupler Driver Relay Module High Level for Arduino

opto isolator - Optocoupler EL817 triggering the relay immediately on power up - Electrical Engineering Stack Exchange

Raspberry Pi Relay Module Expansion Board with Isolated Optocoupler – MakerFocus

New Optocoupler and Slim Interface Relays, Multi-mode Relay Timers

DC5V 12V Relay Module Optocoupler isolation Relay Board Output 4way 8way Output

Standard interface of the relay that can be controlled by microcontrollers such as Arduino, AVR, PIC, ARM any other microcontroller operating at 5V

Optocoupler-Isolated 2 Channel DC 5V Relay Module for Arduino Raspberry Pi MEGA 2560 DSP AVR PIC ARM MCU STM32, Electronic Experiment, Smart Home

ABB Interface relays and optocouplers

China Low Price 1 2 4 8-way Optocoupler Relay Module - Quotation - GNS COMPONENTS