WiFi Relay Module Smart Home Mobile Phone App Remote Switch (With ESP8266) .
8,12 €
Specification (optional): withESP8266 or without ESP8266. The RX, TX, and GND pins of the USB to TL module are respectively connected to the TX, RX, and GND pins on the module (the default baud rate of the ESP8266 module is generally 115200 or 9600. ).
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