The 12V ESP8266 4 channel WIFI relay module uses ESP-01 as the WIFI module, and with the mature and stable 8-bit MCU chip, the wireless control of the four-way relay in the local area network can be realized by using the mobile phone APP in a simple configuration process. The configuration of the account number and password of the ESP-01 WIFI module can be completed on the mobile phone APP, and the configured account number and password have the function of power-off memory. See more

Onboard mode selection and real-time working status indicator; with 4 optocoupler isolation, strong anti-interference ability; reserved UART debugging interface and MCU program download interface. Onboard 5V,10A/250V AC 10A/30V DC relay, can be continuously drawn in 100,000 times, with diode laxative protection, short response time. Transmission distance: (1) In open environment, the maximum stable transmission distance when the mobile phone is mounted on the WIFI module is 100m;(2) When the WIFI module and the mobile phone are mounted on the router at the same time, the transmission distance depends on the signal strength of the router. The module has two working modes: mode 1: the mobile phone is directly mounted on the WIFI module; Mode 2: The mobile phone and the WIFI module are mounted on the router at the same time (additional function: it can also be used as a USB relay when the ESP-01 is unplugged). Onboard High Performance Microprocessor and ESP-01 WIFI Module.