ESP8266 WiFi Relay Module 5V ESP-01S DIY

Description

What it is

The ESP-01S WiFi relay module is an electronic component that combines an ESP8266 processor with a relay for controlling electrical devices. It allows you to manage devices remotely via a Wi-Fi connection.

Features

• Processor: ESP8266
• Supply Voltage: 5V
• SKU: ARD0011008
• Price: 3.91 €
• Category: Relay, Relays and Mosfet

What it is for

The ESP-01S module is ideal for creating simple smart home systems. You can use it to turn lights, appliances, or other devices connected to the relay on or off remotely via a Wi-Fi connection. Compatibility with Arduino and other ESP microcontrollers should be verified in the datasheet.

Tutorial: How to use WiFi Relay Module ESP-01S

The ESP-01S WiFi relay module allows you to control electrical devices from anywhere in the world via a Wi-Fi network. Ideal for beginners who want to start with smart home projects.

What you need

• ESP8266 WiFi Relay Module 5V ESP-01S
• Arduino IDE installed
• Computer or Android/iOS device
• 5V Power Supply

Steps

1. Connect the relay module to a 5V power supply.
2. Download and install the Arduino IDE on your computer.
3. Open the ‘Tools > Serial Monitor’ section in the Arduino IDE menu, select COM (Windows) or /dev/tty.* (Mac/Linux).
4. Upload the provided example sketch to the ESP8266 module.
5. Open the serial interface to monitor debug messages and connect to the WiFi app.
6. Install an app like ‘ESP8266 IoT’ or ‘Blynk’ on your mobile device.
7. Connect the app to the relay module via Wi-Fi.
8. Check the relay status from your phone and change its state.

Example code

/* Codice di esempio per il controllo del relè via WiFi */
#include <ESP8266WiFi.h>

// Verifica sul datasheet per le specifiche del modulo
const char* ssid = "SSID";
const char* password = "PASSWORD";

void setup() {
  Serial.begin(115200);
}

void loop() {
  // Codice di connessione WiFi e controllo relè
}

Mini project

Create a simple smart home system to turn on a light or electrical appliance from anywhere in the world.

Common mistakes

• I am unable to connect to the ESP8266 module via Wi-Fi.
• The relay does not activate when I send commands from the app.
• The Arduino IDE does not detect my ESP8266 module.
• I have issues with the power supply of the module.

Recommended accessories

• ESP8266 WebServer
• Arduino Uno R3
• Breadboard 400 points
• Variable resistors

Frequently asked questions

How can I connect to the WiFi relay module via Wi-Fi?
Install an app like Blynk or ESP8266 IoT on smartphone/tablet and connect the app to the module via Wi-Fi network.

Which devices can be controlled with the WiFi relay?
Devices that work at 5V or less, such as lamps, small motors, etc.

Can I use this module for 3D printing or drone projects?
The module is suitable for home controls and not recommended for devices with high power requirements.