4 channel relay module with opto - EasyEDA

4 Channel Relay Module Schematic

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Wiring Bluetooth HC06 in 8 Channel Relay with Android & Arduino
Wiring Bluetooth HC06 in 8 Channel Relay with Android & Arduino

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8 Channel 5V Relay Module - Wiki
8 Channel 5V Relay Module - Wiki

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MicroPython: Relay Module with ESP32/ESP8266 (Guide + Web Server
MicroPython: Relay Module with ESP32/ESP8266 (Guide + Web Server

Relay module diagram

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5V Single Channel Relay Module Pinout, working, Interfacing, Applications
5V Single Channel Relay Module Pinout, working, Interfacing, Applications

Os circuit

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4 channel relay module with opto - EasyEDA
4 channel relay module with opto - EasyEDA

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Wiring/controlling 4 channel relay with Raspberry Pi 2b+ - Electrical
Wiring/controlling 4 channel relay with Raspberry Pi 2b+ - Electrical

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4 relay module | Hobbyist.co.nz
4 relay module | Hobbyist.co.nz

Schematic for 1 Channel Relay Module - Projects - KiCad.info Forums
Schematic for 1 Channel Relay Module - Projects - KiCad.info Forums

5V 4 Channel Relay Module Four-Channel Relay Module | Majju PK
5V 4 Channel Relay Module Four-Channel Relay Module | Majju PK

16 Channel Relay Module 5v,12v,24v 16channel Relay Output 16-channel 16
16 Channel Relay Module 5v,12v,24v 16channel Relay Output 16-channel 16

4 Channel 5V Relay Module - Wiki
4 Channel 5V Relay Module - Wiki

ESP8266 4-Channel Relay Module Home Automation Project - Hackster.io
ESP8266 4-Channel Relay Module Home Automation Project - Hackster.io