Writes binary data to the serial port. This data is sent as a byte or series of bytes; to send the characters representing the digits of a number use the print() function instead.
Serial.write(val)
Serial.write(str)
Serial.write(buf, len)
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
len: the length of the buffer
byte
write() will return the number of bytes written, though reading that number is optional
void setup(){
Serial.begin(9600);
}
void loop(){
Serial.write(45); // send a byte with the value 45
int bytesSent = Serial.write("hello"); //send the string "hello" and return the length of the string.
}
Corrections, suggestions, and new documentation should be posted to the Forum.
The text of the Energia getting started guide is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Energia reference is based on Arduino reference. Code samples in the guide are released into the public domain.