Error 503: Bluetooth and ESP32

Hi. I get a problem with my first app en MIT. I'm trying to connect a ESP32 Lolin, but when a select the device, i get an error message "Error 503: The specified adress is not a valid Bluetooth MAC address" I need your help pleas. Thanks

It looks like you use 2 different labels


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Thank you so much. With your suggest, there is no more error 503, but now, I get an "Error 516: Unable to write. Broken Pipe" Some idea?? I share the ESP32 code

It would really help if you provided a screenshot of your relevant blocks, so we can see what you are trying to do, and where the problem may be.

To get an image of your blocks, right click in the Blocks Editor and select "Download Blocks as Image". You might want to use an image editor to crop etc. if required. Then post it here in the community.


Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by icon24 Taifun.

Sorry. I'm trying to put on and off 2 leds (Yellow and Green). The blocks are the same that I shared before, but now, i got an error 506