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$11.87

**Powerful Control:** Equipped with a mature ESP-12F module, offering seamless wireless control for your smart home projects with 4M Byte Flash memory.
**Versatile Power Supply:** Supports both DC7-28V and 5V power modes, ensuring compatibility with various power sources for hassle-free installation.
**Heavy-Duty Relay Capacity:** Features four 5V/30A relays, perfect for controlling high-voltage devices up to AC250V/DC30V, making it ideal for robust home automation systems.
**Developer-Friendly:** All I/O ports and UART are accessible, and compatible with Arduino IDE, providing endless possibilities for secondary development and customization.
**User-Friendly Design:** Includes a reset button, programmable LED, and relay indicators for easy operation and status monitoring, enhancing your smart home experience.

Product description

Description

The ESP8266 four-way 30A relay development board is equipped with ESP-12F WiFi module,
all I/O ports are led out, and it supports DC7-28V/5V power supply.
Provide For Arduino development environment reference code,suitable for ESP8266 secondary development learning,
smart home wireless control and other occasions.

Compatible with DC7-28V/5V power supply options

1	On-board mature and stable ESP-12F WiFi module, large capacity 4M Byte Flash;
2	The I/O port and UART program download port of the WiFi module are allled out, which is convenient for secondary development;
3	The power supply mode supports DC7-28V/5V;
4	Onboard WiFi module RST reset button and a programmable button;
5	ESP-12F supports the use of Eclipse/For Arduino IDE and otherdevelopment tools, and provides reference programs under the Arduinodevelopment environment;
6	There are 4 5V/30A relays on board, which output switch signals, whichare suitable for controlling loads whose working voltage is within AC250V/DC30V;
7	Onboard power indicator, 1 programmable LED and relay indicator.