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12V Bluetooth Relay to control AC or DC load using mobile Phone
12V 4 Channel Multifunction Bluetooth relay Module Remote Switch for Android
Logic relays for an easy programming of control functions
How to use 4 channel Relay to control AC load with Arduino code
How to Connect Zelio Logic Smart Relays to Windows PC using Bluetooth | Schneider Electric
Best Home Automation System 🏡 using ESP32 Blynk Bluetooth with Fan Dimmer | IoT Project 2022
16 Channel Sainsmart Relay Control Board setup and config
Connecting a Relay Module to a Microcontroller