Use this forum to chat about hardware specific topics for the ESP8266 (peripherals, memory, clocks, JTAG, programming)

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By Xheron84ar
#69199 Hi!, first of all sorry by my bad english.

I use Arduino IDE to upload sketchs.

In some cases when i try to upload the sketch i dont have any response from the board. In fact when i plug to the USB it doesnt blink the blue led that have the ESP board.

I try to cut the CP2102 buildit-in on the LoLin board and i make a board to upload the firmware but it doesnt work in all modules. In the case that works the blue led blink when i plugged.

Any have some idea what is happening?