ESP32: Blink the LED (ESP32 + Arduino series)

It's the "Hello World" of IoT projects: blink an LED. Here, I'll show you how to blink the built-in LED of most ESP32 development boards. Of course, by using Arduino framework.
⚡️Other videos in this series:
• ESP32 + Arduino
(Everything you need to know about programming the ESP32 by using the Arduino Framework)
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[@captmcloven2137]

WOW....you have just saved my day! Followed the steps and my board is blinking. I now know its connected and takes programs. A++ for this video. Thanks a bunch

[@tomaskollar2279]

Thx, just starting with ESP. Helped a lot! Deserves a like :D

[@markedwards3284]

Thank you. Just what I needed to figure out pinouts.

[@antoinekeller2786]

After spending hours to pull my hair, I realized the cable I was using was not able to transfer data and was not visible as /dev/ttyUSB0. Make sure you have a correct cable...

[@Schnarr007]

Thanks for you help, worked perfectly

[@funckyjunky]

no, it didnt work, in my case (esp32 wroom_v1) this is what worked for me: int LED_BUILTIN = 2; void setup() { pinMode (LED_BUILTIN, OUTPUT); } void loop() { digitalWrite(LED_BUILTIN, HIGH); delay(1000); digitalWrite(LED_BUILTIN, LOW); delay(1000); }

[@ichbinderroboter]

For the 38 Pin version you need to use LED_Builtin = 1

[@funckyjunky]

@@ichbinderroboter yes, thats true 👍

[@AlexRib]

@@ichbinderroboter THANK YOU very much

[@lautarocarrano6537]

@@ichbinderroboter Thanks!

[@Youngduck93]

Thank you for the tutorial video! For 'ESP-WROOM-32', I had to keep the 'boot' button on my board pressed while flashing the program; otherwise the flashing process gave an error "Failed to connect to ESP32".

[@talhawaleed8633]

thanks man, that was helpful

[@gerdsfargen6687]

That's strange...my 2022 wroom esp32 doesn't require this yet doesn't blink the on-board led despite defining the builtin as 2.

[@mvvkiran]

Thanks man, this helped!

[@0my]

What programmer do you suggest

[@komalshah4854]

How do I make it stop it just keeps blinking

[@adnyx.9610]

unplug it or flash another code that doesn't make it blink

[@itsdarkoboy706]

What do you mean with HIGH to turn off but LOW to turn on? I'm confused and not sure if i should switch to ESP if it is this unintuitive...

[@dentonhess5810]

I believe you are correct. But I haven't done this myself yet. Sometimes inverted logic is used, but I don't think so here. I think he simply misspoke.

[@balajiuthran5028]

Thank you bro

[@moatez1187]

bro u sayed turn off and you used high -_-