1 Kanal ESP8266 Relaismodul WLAN Steuerung Entwicklungsboard -12F mit
7,39 €
6X6MM Button: ESP8266 reset button. UART Program Download Port: ESP8266 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.
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