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Topic: How to use the UART ? (Read 498 times) previous topic - next topic

elegance

MY system is windows, and my board is arduino mega.
i want to use the uart3(TX3,RX3) to communicate with another component.

my code is:

int buf[]={FF FF 00 07 03 1E 00 02 00 02 D3};
void setup(){

Serial3.begin(500000);

}
void loop() {
Serial3.write(buf,11);
}


but its said"27: error: exponent has no digits".

What can i do? I am a beginner, and I need the help of yours. Thanks!

PaulS

You can stick with one post asking a question. Asking more than once will not get more answers.
The art of getting good answers lies in asking good questions.

elegance


retrolefty

Your array is pretty messed up for one thing:

int buf[]={FF FF 00 07 03 1E 00 02 00 02 D3};

It needs commas between all the values and if those are HEX byte values then each needs to be in the form of 0xFF, 0xFF, etc.

Lefty

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