1/2 Channel DC 5V Relay Module ESP8266 ESP-01 WIFI Wireless Board IOT Smart Home
ab 7,14 €
The 5V ESP8266 dual WIFI relay module uses the ESP8266 chip. ESP8266 ESP-12F. Onboard ESP8266 chip;. Reserve the ESP8266 chip program download interface. After the connection is successful, the green light will change from slow flashing for 1 second to constant light.
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