ESP32S Node MCU can not blink

hoahoctro
Posts: 1
Joined: Thu Jul 11, 2019 3:47 pm

ESP32S Node MCU can not blink

Postby hoahoctro » Thu Jul 11, 2019 3:50 pm

I bought this board https://www.aliexpress.com/item/3280788 ... 4c4dGapEIG
(The yellow board, which has only one led onboard)
When uploading blink sketch, it doesnt work, but other sketch is ok
In this case, which pin is connected to the only led onboard ? :( :( :( :( :(
Thanks

mikemoy
Posts: 295
Joined: Fri Jan 12, 2018 9:10 pm

Re: ESP32S Node MCU can not blink

Postby mikemoy » Sun Jul 14, 2019 3:03 pm

You are going to have to get the schematic for the board to be sure. Many of these boards that only have one led is used for the power led.

ckovamees
Posts: 1
Joined: Thu Jul 18, 2019 5:51 pm

Re: ESP32S Node MCU can not blink

Postby ckovamees » Thu Jul 18, 2019 5:54 pm

Try using the LED pin number 2 instead of the default sample value.

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