Corrupted characters when using "Serial.println();" AND Crazy BuiltIn led

Projects Programming
1

I just bought an Arduino CH340G UNO and installed the lastest driver from the page (www.wch.cn)

When i tried the "Blink" program (Arduino IDE 2.3.3), i notice how the led blinks like crazy, and when i added a Serial.println("gato"); (the word "gato" for testing purposes) to see what was going on, the output was even worse, and it was printing at a random rate (prints many "gato" in 1 second, prints them with corrupted chars, or just pieces of the word)

Here's the code:

void setup() {
  Serial.begin(9600);
  pinMode(13, OUTPUT);
}

void loop() {
  digitalWrite(13, HIGH);  
  delay(1000);                      
  digitalWrite(13, LOW);   
  delay(1000);                     
  Serial.println("gato");
}

And here's the output:

gato
gato
gat
gatogato
gato
gato
�������%'-� C X=55��J��������P�w�����7����-W�~7��O���m����U^���f׾���Vo�7���]�b�~j���{�����n��y���^�������{wӿ�����������տ?�����o�����7���_��_�?~�����oz���^_����/�գ�����$��7������u����;���nպwe��������?��s��g>���)��W���=�����޽����v�����������|�~;��_��xN�wav��|a�����������]��y�N������� ������s����ڳ�~��������=�_���a�zܗ���/��e�?�{����|nu�S����u��}�W������ǿ�~�M.o�}�ֿ���z����o�:�[���������~���Wםo�;�lw�o���6ｻ��o�_��]�~��������Y�S�*?������k������^�oJ�Z�/L���W+���n��������x���ߣ�����{�i?�sǛ��mk���u�������z��i�?���T[)���wm��Ι��~�ގص>c��ֿ�����)ߦ�w�d��o�g��vϾ��y���'�����=�y�����۶��y�������������������;���?��z�����0]��}���Yo\�8�{���#M{�V�[+����x�y���ڥO�m|����������>\����>��':�n_��~7���񼭛��������~>����nr���ӿ��}�۽�O����S��{���ѿ���K��mk���?�w�{s��J����n��=]��w>>�w�������W��\�����W��d��V��;�}���e�������/��y}���{�{�������~�����������z��r���3�n������������]��ץ�c#�G�o����&�}��w8�ދ���o5��+�7��=�m��y��[�g�m���>��/��=��o���os��|�~��n����c��o���z�Wgato
gato
ga��gato
gato
gato
gato
gato
ato
to
o



gato
gatoo
gat
gato
gato

is my Arduino UNO corrupted? or the IDE i'm using?

EDIT: The builtIn Led goes crazy, and sometimes even the TX and RX leds turn on for miliseconds, like, why?? am i choosing the wrong Board in the IDE? (Arduino UNO)

2

Plenty of places to get ch340 drivers...stay away from unknown download sites might be a good start and go from there.
Also it would be an advantage to you if you include as much info as you can such as PC operating system...were the drivers suited to your system?

3

The CH340 driver will not cause a problem with the LED blink rate, as the program has to be correctly uploaded and verified to run. Sounds like the Uno clone is defective.

4

Where do you recommend? it is literally the manufacturer's page of the chip

Windows 11 23H2

5

Ok, i think i will check this out at the store i bought it, hope they find what is going on, in case anybody can't figure anything else,

Thanks

6

The blink program should have come pre-installed. Was your board running the blink sketch when you first hooked it up?

This type of output is usually observed after an upload.

Send it back; in my opinion your description indicates that it is broken.

You did download from the official site of the manufacturer; no reason to look elsewhere.

7

Yeah, it was blinking with a 9v battery as power supply, but it started to go crazy after some seconds, i though it was like the leds inside a PC and that it was normal at first

I tried again on other USB port and it reduced the print erros a lot, but that piece of code remained, just 1 time, i guess it isn't that bad

I will check this in the store i bought the Arduino, many thanks for your answer

8

That 9V battery was information that you should have provided in the first place. If that is a 9V PP3 battery, it is not suitable for Arduinos.

Disconnect the battery and try with the USB.

9

the built In led was crazy with both the battery or connected to the PC

10

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