Feature: 1. The product is an onboard mature ESP-12FWIFI module, which can ensure stable work. 2. The relay is closed continuously for 100,000 times, with strong driving ability and stable performance. 3. With excellent production process and exquisite craftsmanship, the module is not easy to solder. 4. Made of high-quality materials, the product is light and waterproof, with good insulation properties. 5. The module is suitable for the secondary development of ESP8266 and smart home wireless control. How to Use: ESP8266's GND, RX, TX, and 5V are respectively connected to the GND, TX, RX, and 5V of the external TTL serial port module. IO0 must be connected to GND when downloading. After the download is complete, disconnect the connection between IO0 and GND. Relay Output: NC: Normally closed end. The relay is short-connected with COM before the pull-in, and then suspended after pull-in COM: Public NO: Normally open end, the relay is suspended before being closed, and shorted to COM after being closed Specification: Item Type: Relay Module Material: PCB Working Voltage: DC 7-28V / 5V Purpse: Suitable For The Secondary Development Of ESP8266 Suitable Scenario: Smart Home Wireless Control Package List: 1 x Relay Module 1 x Pin 6 x Socket

How to Use: ESP8266's GND, RX, TX, and 5V are respectively connected to the GND, TX, RX, and 5V of the external TTL serial port module. IO0 must be connected to GND when downloading. After the download is complete, disconnect the connection between IO0 and GND. ESP-12F WIFI Module: The product is an onboard mature ESP-12FWIFI module, which can ensure stable work. The module is suitable for the secondary development of ESP8266 and smart home wireless control. Stable Performance: The relay is closed continuously for 100,000 times, with strong driving ability. With excellent production process and exquisite craftsmanship, the module is not easy to solder. Material: Made of high-quality materials, the product is light and waterproof, with good insulation properties. Working Voltage: DC 7-28V / 5V.