"SmartLED Controller" - ESP+FastLED+Blynk (Video)


I’m getting this error with arduino OTA(latest version), what can i do?

Sketch uses 292788 bytes (58%) of program storage space. Maximum is 499696 bytes.
Global variables use 32312 bytes (39%) of dynamic memory, leaving 49608 bytes for local variables. Maximum is 81920 bytes.
error: Failed to open COM15
error: espcomm_open failed
error: espcomm_upload_mem failed
error: espcomm_upload_mem failed


Make sure COM15 is available :stuck_out_tongue_winking_eye: AKA, the correct COM port on your PC to program your ESP, and not used by something else.

Hmmm… OTA doesn’t use a COM port, it uses an IP port… are you doing your flash correctly?


I am having the same problem, What exactly did you comment out?


The same problem as what?



@Rel0aded Looks like a clear statement to me… if you don’t understand how to work with separate .h files in the IDE, or the difference in Local Server vs Cloud Server settings, then this might be more complicated then you need for a starter? project.


basically which line should I comment out?

The issue I am facing is that my device is not showing up online and when I connect to the serial monitor it constantly displays prints to ip


If you are wanting to use the Cloud Server, then you could read the directions right above that referenced group of commands for that answer :stuck_out_tongue_winking_eye: (Hint they are already in a group)



Hello, I liked the project and I wanted to screw it out. Unfortunately I can not read the qr code. The application does not recognize it. I tried to the “REMOTE SWITCHES” and he loaded it. I am asking for help in solving the problem.


This is a very old topic and I haven’t seen the OP around lately… but I just tested the GitHub QR and it still works fine…

split this topic #192

A post was split to a new topic: Wanted to use the Menu widget instead of just go to the next patern with pushing the preset button

closed #193