ESP8266 NodeMCU Based 4-Channel Relay Board Micro Controller Board

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SKU: BE02401
Availability : In Stock Pre order Out of stock
Categories: Development Boards and Modules
Description

The ESP8266 NodeMCU Based 4-Channel Relay Board is a powerful microcontroller board integrated with a 4-channel relay module, offering excellent flexibility and control for various automation and IoT applications. This board is based on the ESP8266 NodeMCU, a popular Wi-Fi-enabled microcontroller that provides easy connectivity to the internet. The combination of the NodeMCU with the 4-channel relay board allows you to control high-voltage devices such as lights, fans, and appliances directly from your smartphone, web interface, or automated systems.

The 4-channel relay module is designed to control four separate high-power devices simultaneously, with each relay capable of switching devices like lights, motors, home appliances, or other high-current equipment. The ESP8266 NodeMCU is programmed using the widely-used Arduino IDE, making it accessible for both beginners and advanced users. With Wi-Fi connectivity, you can easily connect this board to the internet, allowing remote control over your devices from anywhere.

This NodeMCU-based 4-channel relay board is ideal for smart home automation, home security systems, remote control devices, and IoT projects. It provides an easy-to-use solution for integrating Wi-Fi control into your automation systems without needing complex hardware setups.

Applications

  • Smart home lighting and appliance control

  • Remote switching for fans, heaters, or pumps

  • IoT-based garden or irrigation automation

  • Industrial automation and relay switching

  • DIY wireless automation and ESP8266 projects

Features

  • ESP8266 NodeMCU with built-in WiFi

  • 4-channel relay module with opto-isolation

  • Each relay supports AC/DC loads up to 10A

  • Can be programmed via Arduino IDE or Lua

  • Compatible with Blynk, Tasmota, and Home Assistant

  • Status LEDs for WiFi and relay indicators

  • Screw terminals for secure wiring connections

Specifications

Parameter Details
Microcontroller ESP8266 NodeMCU (CH340 or CP2102)
WiFi Protocol 802.11 b/g/n
Relay Channels 4 (Independently Controllable)
Relay Type SPDT Electromechanical
Relay Rating 10A @ 250V AC / 10A @ 30V DC
Operating Voltage 5V DC (via USB or VIN)
Logic Level 3.3V (compatible with ESP8266 I/O)
Programming Interface Micro USB (Arduino IDE, Lua, etc.)
Communication WiFi (AP/STA modes)
Protection Opto-isolated relay drivers
Dimensions Approx 95mm x 60mm x 20mm
Weight Approx 80g

Package Include:-

1xESP8266 NodeMCU Based 4-Channel Relay Board Micro Controller Board