[Renzo Mischianti]

Hi,
check if another process uses the port.

netstat -an

Bye Renzo

[Renzo Mischianti]

Hi,
remove all unneeded lines like

SoftwareSerial mySerial(D2, D3);

pin declaration etc. and retry.
Bye Renzo

[Renzo Mischianti]

Hi Supachokhansaran,
you must clean your code by disabling the single features and checking who created the problem.

If you want more information about stack trace, and check It detal.

tools\xtensa-esp32-elf\esp-2020r3-8.4.0\xtensa-esp32-elf\bin\xtensa-esp32-elf-addr2line.exe -fe C:\MYPROJECT\build\MYELF.elf 0x4000c269:0x3ffb7810 0x400d5327:0x3ffb7830 0x400d59a2:0x3ffb7850 0x400d600f:0x3ffb7b20 0x400d5039:0x3ffb7b40 0x400d3f17:0x3ffb7b80

or you can use Arduino IDE plugin.

Bye Renzo

[Renzo Mischianti]

Hi Sid,
sorry, your message went to spam so that I will answer only now.
You are right, I push a fixed version without json requirements.
Thanks, Renzo

[Renzo Mischianti]

Hi Srill,
in which line?
Bye Renzo

[Renzo Mischianti]

Hi Srill,
perfect!
Bye Renzo

[Renzo Mischianti]

Thanks for your feedback, JaTo; I often find some bugs in EByte software, and I try to fix Them when I find them.
Bye Renzo

[Renzo Mischianti]

Hi Srill,
Strangely, the library does not say again any response from the device. You get
Available buffer: 0 structure size: 6
and means that the device doesn’t give a response.

There is a power supply problem or wiring problem.
Bye Renzo

[Renzo Mischianti]

Hi Andrecolz,
probably some internal management, try to remove/change all pull-up resistors and try to use other pins.
Bye Renzo

[Renzo Mischianti]

Yes, thanks, I’m going to test It too.
Bye Renzo

[Renzo Mischianti]

Hi,
It seems that the pinout Is wrong; put the device on a breadboard and, with an LED, test the single pin output.
Give me feedback RM

[Renzo Mischianti]

No no,
I need the first part of Serial output where the pin initialized are printed.
Bye RM

[Renzo Mischianti]

Please add also the pin initialization part.
Bye RM

[Renzo Mischianti]

Hi Elkez,
I usually use this solution
Emergency power bank homemade

The step-up drain current is from 18650 (you can put more than one in parallel), and the output is 600mha, which I think is sufficient to power the 400T33D, but check with the tester how much the current drains the device.

Bye Renzo

[Renzo Mischianti]

Hi,
use get configuration sketch and enable the debug.
After that post the output.
Bye Renzo

[Author]

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