Fanstel OpenSource LEW840X Series Operating Instructions Manual page 16

LEW840X, OpenSource Multiple Network Gateways
Dra$ Ver 0.21 Mar. 2020
Programming the ESP32.
Connect UART_Bridge Board "TO WIFI(ESP)" into the JS1.
Make sure the switch on Bridge board is turn on.
Type command "mos flash - -port COM9"
The port number is up to your PC.
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