Dear,
please someone help me, when i send a one byte from my serial port (USB) to Uno Arduino then i read it again by using (Serial.read) or (Serial.parseint) i got the mentioned byte but i receive unwanted 0 sequentially after the sent byte as well as i checked all items (Cable, baud rate , USB port) ... etc
Which version of Arduino software you use? Insert minimum code in order other can test.
I mostly using interrupts when receiving data and hardware serial communication worked fine.
Without your sketch you will get no serious help!
If you're using the serial monitor to send, did you check you have line end set to No Line ending?
Dear,
please i need a help with using serial monitor, when i send a byte from Laptop to a UNO arduino it wil send 2 bytes ( the byte that i sent followed by number 0) as well as i checked all connections and i used all USB ports for several baud rates then i got the same issues, please your advice.
Also here
Please, post your codes and have a look on the structure of Serial Monitor (Fig-1) of Arduino IDE.
Figure-1:
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