In this project, we use an ESP8266 microcontroller to control four relays connected to electrical devices. Relays can be toggled via switches or remotely using the Arduino IoT Cloud dashboard. This solution is perfect for automating devices and monitoring them online.
Devices and components
1 5 Vdc 10A relay module (assembled)
NodeMCU ESP8266
Materials and tools
Soldering kit
Software and tools
Arduino IDE
Arduino Cloud
Project description
ESP8266 4 channel relay module
ESP8266 4 channel relay module
Downloadable files
Code File
Code.ino
PCB BOM
BOM_esp8266-Relay-Board_2025-01-28.csv
Gerber PCB file
Gerber_esp8266-Relay-Board_Alexa-Relay-Board_2025-01-28.zip
Documentation
All project details
https://github.com/ElectroIoT/ESP8266-NodeMCU-4CH-Relay-Module
Note: Content and images are from: https://projecthub.arduino.cc/, with some modifications.
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