Serial.write(buf,len) missing description of len parameter

[sterretje]

There is no description of the 'len' parameter

Syntax
Serial.write(val)
Serial.write(str)
Serial.write(buf, len)
Arduino Mega also supports:
Serial1, Serial2, Serial3 (in place of Serial)

Parameters
val: a value to send as a single byte
str: a string to send as a series of bytes
buf: an array to send as a series of bytes

Returns
size_t
write() will return the number of bytes written, though reading that number is optional

[robsoncouto]

Yes. That is correct.
The Parameter section is missing:

len: the length of the array

Thanks for pointing it out :)

[sterretje]

len: the length of the array

But that's not quite correct; you can have a 100 byte array but only want to send 10 bytes.

[robsoncouto]

But that's not quite correct; you can have a 100 byte array but only want to send 10 bytes.

Oops, that is right. My bad.

How about the following?

len: the number of bytes to be sent from the array

[sterretje]

I think beginners can live with that ;)

[robsoncouto]

Alright then.
Thanks again :)