Below given is Relay Driver Circuit to build your own Relay module: Circuit Diagram and Working: In this Arduino Relay Control Circuit we have used Arduino to control the relay via a BC547 transistor.

This post is about the design of a simple electronic impulse relay module that nearly mimics the functions of a conventional electromechanical impulse relay. A classic application of this module is ...

Circuit Diagram: Relay module: Connect the IN pin of the relay to a GPIO pin (e.g., D1 or GPIO5). ESP8266 or ESP32: Make sure the relay module's VCC and GND are properly connected to the board.

Circuit and working of the voice controlled home automation system Circuit diagram of the voice-controlled home automation system is shown in Fig. 3. The circuit consists of Arduino Mega 2560 board ...

ESP32-Blynk-2-IR-remote-control-relay-with-manual-Switches IoT-based Smart Home Automation using the new Blynk 2.0 ESP32 LDR & temperature sensor to control an 8-channel relay module from the manual ...