The smart control card WiFi with 4 relay 5 Volts

DC 5V ESP8266 WIFI 4 Channel Relay Module

Using an ESP8266 Dual Relay Combo Board with Home Assistant - Hardware - Home Assistant Community

4 Ways to Control Electronic Relays - Make

RF Remote Control Relay Switch

Newgoal 4-Channel WiFi Smart Switch Relay Module, Tuya/Smart Life App for Smart Home Remote Control, Momentary Time Adjustable, Compatible with

Arduino SIM800L Relay Control with SMS SIM800L Register Phone Number by SMS

ER050 5V DC Power Relay at Rs 14/piece, Nawada, New Delhi

SPECIFICATION * 5V 4-Channel Relay interface board, and each one needs 15-20mA Driver Current * Equiped Equipped with high-current relay, AC250V 10A ;

4-Channel 5V Relay Module

ESP32 Relay Module - Control AC Appliances (Web Server)