- Tue Apr 12, 2016 1:16 pm
#45376
Hello. I bought this shield too and i asked the seller what are the four switches and this is the response i got:
The module on the role of four toggle buttons:
(1) P1 / 2 bit coding is used to determine whether the on-board serial port connected ESP8266 D0 / 1 (Arduino serial port).
(2) P3-bit DIP switch mode selector is ESP8266
When P3 is ON, ESP8266 normal operation mode.
When P3 is OFF, ESP8266 firmware brush to write mode (DFU),
At this point can ESP8266 firmware upgrade.
(3) P4 DIP is under ESP8266 DFU mode onboard LED switch
hope this help