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code esp 32 mqtt

Q&A Forum › Category: ESP32 › code esp 32 mqtt
0 Vote Up Vote Down
Fadhli Azinnuddin asked 2 years ago

please help me.. i have problem with program on arduino ide you can see at https://drive.google.com/file/d/1EJcOOgBCSbKr7H-bOGQLgkyAduAsjUW-/view?usp=sharing
 
‘LED_BUILTIN’ was not declared in this scope

1 Answers
0 Vote Up Vote Down
Sara Santos Staff answered 2 years ago

Hi.
What ESP32 board did you select in Tools > Board?
Replace LED_BUILTIN with 2. It refers to the GPIO that the ESP32 built-in LED is connected to.
Regards,
Sara

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