ESP8266 WiFi 8-Channel Relay Module Smart Home Dev Board
ESP8266 WiFi 8-Channel Relay Module Smart Home Dev Board
ESP8266 WiFi 8-Channel Relay Module – Wireless Smart Home Development Board
Take full control of your smart home automation projects with this powerful ESP8266 ESP-12F WiFi 8-Channel Relay Module. Designed for makers, hobbyists, and developers alike, this versatile development board supports wireless control of up to 8 independent relay channels — perfect for automating lights, appliances, motors, and more. With flexible power input options and full Arduino IDE compatibility, it's an ideal platform for secondary development and learning.
Key Features
- ESP-12F WiFi Module: Mature, stable onboard WiFi with a large-capacity 4MB Flash for reliable wireless communication.
- Flexible Power Supply: Supports both DC 5V and DC 12–24V input modes to suit a wide range of setups.
- 8 Independent Relay Channels: Each 5V relay outputs switch signals, supporting loads up to AC 250V / DC 30V.
- Arduino & Eclipse Compatible: Works seamlessly with Arduino IDE and Eclipse development tools; reference code provided for quick start.
- Onboard Function Keys: Configurable function buttons let you customize board behavior without additional hardware.
- Status Indicators: Onboard power indicator and individual relay indicator LEDs for clear, real-time monitoring.
- Matching Housing Available: Compatible enclosure/shell option available for a clean, finished installation.
Specifications
| WiFi Module | ESP-12F (ESP8266) |
| Flash Memory | 4MB |
| Power Supply | DC 5V or DC 12–24V |
| Relay Channels | 8 |
| Relay Voltage | 5V (per relay) |
| Max Switching Load | AC 250V / DC 30V |
| Development Environment | Arduino IDE, Eclipse |
| Indicators | Power LED + 8× Relay LEDs |
| Country of Origin | Made in China |
Package Includes
- 1× ESP8266 8-Channel Relay Module Board
- Optional: 1× Matching Housing Shell (select variant)
Notes
- Colors may appear slightly different due to monitor/screen settings.
- Please allow 1mm–1cm tolerance due to manual measurement.
Learn More About WiFi-Based Home Automation
For guidance on electrical safety when working with relay-controlled mains circuits, refer to the U.S. Consumer Product Safety Commission – Electrical Safety resource.
Frequently Asked Questions
Q: What microcontroller does this relay module use?
A: This board features the ESP-12F module, which is based on the popular ESP8266 WiFi chip. It offers built-in WiFi connectivity, a 4MB Flash, and full compatibility with the Arduino IDE and Eclipse development environments, making it ideal for wireless smart home projects and custom firmware development.
Q: What power supply does the ESP8266 8-channel relay board support?
A: The board supports two flexible input options: DC 5V for USB-style power sources, or DC 12–24V for systems using standard wall adapters or industrial power supplies. This makes it adaptable to a wide variety of project setups.
Q: What types of loads can I control with this relay module?
A: Each of the 8 relay channels can switch loads up to AC 250V or DC 30V, making the board suitable for controlling standard household appliances, lighting circuits, motors, and other devices — all wirelessly via WiFi.
Q: Is sample/reference code included for the Arduino IDE?
A: Yes! Reference programs for the Arduino development environment are provided, helping you get started quickly with wireless relay control and secondary development on the ESP8266 platform.