BRAND: Communica

5V ESP8266 2-Channel WiFi Relay Module with ESP-01 WiFi Module and 8 Bit MCU

2-Channel WiFi Relay Module


    • On-board N76E003/STM8S003 and ESP-01 WIFI module

Having two modes:


    • Mode 1: Cell phones carry on the wifi module directly
    • Mode 2: Cell phone and wifi module carry on the same router
    • Additional function: As an USB relay module when unplug the ESP-01

Transmission distance:

    • In the open environment, the maximum transmission distance is 100m when the cell phone carry on the wifi module directly ;
    • when the wifi module and cell phone carrying on the same router, the transmission distance depend on the router’s signal intensity;
    • Use Smartconfig technology of ESP8266 to configurate the password for the ESP-01 module with APP
    • On-board 5V, 10 A / 250 v AC 10 A / 30 v DC relay, absorb 100000 times
    • continuously, Module with diode effusion protection, short response time
    • On-board model selection and working position indicator LED
    • On-board preserved UART debug interface and MCU program interface
    • Size: 59*40mm

Interface and sources:

  • IN+, IN-: 5V power input
  • TX, RX: UART communication
  • SWIM, NRST: MCU program interface
  • S1: Mode selection key, default is mode 1
  • S2: Restore key
  • LED D2 and D4(red): Relay indicator
  • LED D7(red): Mode 1 indicator
  • LED D5(blue): Mode 2 indicator
  • LED D6(green): Working state indicator, the description of D6 as below:
    • It means internal self-configuration or lost connection with the router when D6 off
    • It means the ESP-01 are waiting for the APP configurate the password for it when D6 fast blink every 0.5S

    Package includes:

  • 1 X 5V ESP8266 Dual WiFi Relay Module Internet Of Things Smart Home Mobile APP Remote Switch

Additional Information

Device Relay Module
Type 2-Channel | WiFi