Mysterious error when compiling Serial.write

[protolus]

According to Arduino Referenc for Serial.write, the following should be possible:

char Data [255];

Serial.write (Data, 255);

The compiler murmurs and brings an error message:

invalid conversion from 'char' to const unit0_t (aka const unsigned char
"}" [fpermissive]

Is the referenc wrong or what could be the mistake?
Is it possibly a version issue ???

[jremington]

Please cut and paste the actual message into your post, not one that you vaguely recall, and post the actual code, using code tags. Also, check whether the message is a warning rather than an error.

Did you really plan to send 255 bytes of random, uninitialized nonsense out the serial port?

[drmpf]

Serial.write (Data, 255);

expects uint8_t* and you have passed it a char*

Serial.write ((uint8_t*)Data, 255);

will fix the error, but as @jremington said there may be other problems.

Check out my SafeString library (available from Arduino Library manager) if you are going to be working with char[] or c-strings.

[6v6gt]

and, depending on what you put in that array Data[], you may be better off using Serial.print().