esp8266 v7 module relay - BONGDATV

If you use a relay, you can control up to 250V with your Arduino, ESP8266 or ESP32 based microcontroller. In this tutorial you learn: What is a relay and how to use it? How does a relay work? How to control a relay with your microcontroller to turn a light bulb on and off. Table of Contents. Warning for Higher AC Voltages.

This tutorial includes how to connect Nodemcu ESP8266 with a web server and how to turn a relay ON / OFF using a web server. Also, we can use this project knowledge to create home automation projects.

The project described here is an ESP8266 NodeMCU Two Channel Relay Module. This board enables users to control 2 x relays remotely. The 2 channels can be controlled remotely using a webserver/WiFi connection. The project works with 5V DC.

Using a relay with the ESP8266 is a great way to control AC household appliances remotely. This tutorial explains how to control a relay module with the ESP8266. We'll take a look at how a relay module works, how to connect the relay to the ESP8266 and build a web server to control a relay remotely (or as many relays as you want).