What is it?

    This is an ESP8266-based WiFi relay module featuring the ESP-12F WiFi module. It supports DC7-28V or 5V power, and comes with 8-channel 5V relays, ideal for controlling home appliances, automation projects, and IoT applications.

    
Why did you make it?
    This module was developed to provide an easy-to-use solution for DIY automation projects, smart home systems, and IoT development. With a built-in Arduino development environment, it makes ESP8266 development accessible to both beginners and experienced engineers.

    
What makes it special?
    The ESP-12F WiFi module is a reliable, stable component that supports a wide voltage range (DC7-28V/5V). With 8-channel relays capable of controlling loads up to AC 250V or DC 30V, it's a perfect solution for wireless control and automation. The 4MB Flash memory ensures ample space for custom applications, and it includes reference code for easy integration into Arduino projects.

features

Burn in port: Connect the GND, RX, TX, 5V of ESP8266 to the external TTL serial module's GND, TX, RX, 5V respectively. When downloading, connect 100 to GND, and then disconnect the connection between I00 and GND after downloading is complete; Relay output terminal: NC: normally closed end, short circuited to COM before relay closing, suspended after closing; COM: Public end; NO: Constant start, the relay is suspended before closing and short circuited to COM after closing.