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  • $29.99
  • Free 30-day Returns
  • Ships from China.
    Sold by TechMax Depot

    Shipped by TechMax Depot

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    Relay Module, Wireless Development Board ESP8266 Relay Module WIFI 4?Channel Development Board with 2 X Sockets for Relay Module

    • The relay module possesses stable performance to meet the needs of various work scenarios.
    • High quality material can make sure the durability and stability of the product.
    • All the program download ports of the WiFi module are led out to facilitate secondary development.
    • With excellent production process and exquisite craftsmanship, the module is not easy to solder.
    • With professional design and reasonable structure, the module is easy to replace and install.
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    Feature:
    1. The relay module possesses stable performance to meet the needs of various work scenarios.
    2. All the program download ports of the WiFi module are led out to facilitate secondary development.
    3. With excellent production process and exquisite craftsmanship, the module is not easy to solder.
    4. High quality material can make sure the durability and stability of the product.
    5. With professional design and reasonable structure, the module is easy to replace and install.


    How to Use:
    How to Wire:
    L, N: AC90?250V power supply
    AC90?250V to DC5V switching power supply (do not touch this directly with your hands when using AC power supply!!)
    VCC, GND: DC7?12V power supply;
    Micro USB: DC5VUSB power supply
    6x6mm Button: ESP8266 reset button;
    UART Program Download Port: ESP8266's GND, RX, TX, 5V are respectively connected to the GND, TX, RX, 5v of the external TTL serial port module, 100 must be connected to GND when downloading, and then disconnect the connection between 100 and GND after the download is complete;
    GPIO pin header leads to the port;
    8 Relay output terminal:
    Normally closed, the relay is short?connected with COM before the pull?in, and hangs in


























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