In this tutorial, we will create an ESP32 WebSocket server using the WebSocket communication protocol and the Arduino IDE. The user will be able to control the onboard LED of the ESP32 and can connect a relay to control AC loads. Through the WebSocket communication protocol, several clients can connect to the server concurrently without … Read more
One of the best projects you can consider doing with ESP32 is to control a 220-volt lamp from a web server. But you can also use the same procedure to control fans, lights, AC, or other electrical devices that you want to control remotely. This tutorial is about controlling a relay and a 220-volt lamp … Read more
In this user guide, we will control the output of the ESP32 using the Blynk application installed in our smartphones. Previously, we controlled the ESP module’s outputs through applications such as Telegram and Google Firebase. You can view the tutorials by accessing the links below: Telegram ESP32 and ESP8266: Control GPIOs and LEDs using Arduino … Read more
Relays are one of the essential components in the electronics industry. A relay is an electromagnet that acts as a switch by opening or closing its contacts to controls the current. Relay modules are typically used with microcontrollers to profoundly control A.C. and D.C. devices, ranging from low voltages to high voltages. We can use … Read more
In this tutorial, we will discuss 5V single channel relay modules and their important features such as pinout, pin configuration details, features, working, interfacing with microcontrollers and applications. Relay is an electro-mechnical device which acts as a switch. DC electrical current is used to energize the relay coil which opens or closes the contact switches. … Read more